/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=0.8 --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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:31:19,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:31:19,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:31:19,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:31:19,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:31:19,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:31:19,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:31:19,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:31:19,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:31:19,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:31:19,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:31:19,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:31:19,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:31:19,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:31:19,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:31:19,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:31:19,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:31:19,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:31:19,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:31:19,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:31:19,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:31:19,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:31:19,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:31:19,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:31:19,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:31:19,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:31:19,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:31:19,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:31:19,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:31:19,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:31:19,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:31:19,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:31:19,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:31:19,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:31:19,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:31:19,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:31:19,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:31:19,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:31:19,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:31:19,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:31:19,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:31:19,822 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 07:31:19,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:31:19,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:31:19,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:31:19,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:31:19,883 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:31:19,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:31:19,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:31:19,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:31:19,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:31:19,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:31:19,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:31:19,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:31:19,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:31:19,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:31:19,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:31:19,886 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:31:19,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:31:19,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:31:19,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:31:19,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:31:19,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:31:19,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:31:19,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:31:19,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:31:19,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:31:19,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:31:19,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:31:19,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:31:19,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:31:19,891 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:31:20,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:31:20,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:31:20,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:31:20,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:31:20,375 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:31:20,376 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 07:31:20,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4aa70027/fdf8f5155cd14652b7590e7f4edb6c24/FLAG3840465f0 [2020-09-25 07:31:21,016 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:31:21,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 07:31:21,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4aa70027/fdf8f5155cd14652b7590e7f4edb6c24/FLAG3840465f0 [2020-09-25 07:31:21,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4aa70027/fdf8f5155cd14652b7590e7f4edb6c24 [2020-09-25 07:31:21,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:31:21,341 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:31:21,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:31:21,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:31:21,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:31:21,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:31:21" (1/1) ... [2020-09-25 07:31:21,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:21, skipping insertion in model container [2020-09-25 07:31:21,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:31:21" (1/1) ... [2020-09-25 07:31:21,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:31:21,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:31:21,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:31:21,850 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:31:22,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:31:22,104 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:31:22,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22 WrapperNode [2020-09-25 07:31:22,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:31:22,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:31:22,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:31:22,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:31:22,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (1/1) ... [2020-09-25 07:31:22,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (1/1) ... [2020-09-25 07:31:22,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (1/1) ... [2020-09-25 07:31:22,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (1/1) ... [2020-09-25 07:31:22,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (1/1) ... [2020-09-25 07:31:22,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (1/1) ... [2020-09-25 07:31:22,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (1/1) ... [2020-09-25 07:31:22,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:31:22,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:31:22,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:31:22,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:31:22,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (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 07:31:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:31:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:31:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:31:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:31:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:31:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:31:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:31:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:31:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:31:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:31:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:31:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:31:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:31:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:31:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:31:22,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:31:22,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:31:22,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:31:22,294 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:31:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:31:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:31:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:31:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:31:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:31:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:31:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:31:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:31:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:31:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:31:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:31:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:31:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:31:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:31:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:31:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:31:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:31:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:31:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:31:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:31:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:31:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:31:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:31:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:31:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:31:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:31:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:31:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:31:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:31:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:31:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:31:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:31:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:31:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:31:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:31:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:31:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:31:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:31:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:31:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:31:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:31:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:31:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:31:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:31:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:31:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:31:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:31:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:31:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:31:23,562 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:31:23,562 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:31:23,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:31:23 BoogieIcfgContainer [2020-09-25 07:31:23,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:31:23,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:31:23,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:31:23,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:31:23,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:31:21" (1/3) ... [2020-09-25 07:31:23,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e915be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:31:23, skipping insertion in model container [2020-09-25 07:31:23,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:31:22" (2/3) ... [2020-09-25 07:31:23,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e915be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:31:23, skipping insertion in model container [2020-09-25 07:31:23,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:31:23" (3/3) ... [2020-09-25 07:31:23,586 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-25 07:31:23,600 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:31:23,615 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:31:23,640 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:31:23,685 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:31:23,685 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:31:23,685 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:31:23,685 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:31:23,685 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:31:23,686 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:31:23,686 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:31:23,686 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:31:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-25 07:31:23,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 07:31:23,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:23,753 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 07:31:23,753 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:23,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:23,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-25 07:31:23,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:23,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24891574] [2020-09-25 07:31:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:24,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:24,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 07:31:28,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:31:28,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3974 [2020-09-25 07:31:28,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 07:31:28,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:31:28,619 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:28,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:28,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 07:31:28,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:28,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:28,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:28,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:28,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:28,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:28,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:28,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:31:28,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:28,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:28,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:28,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:28,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:28,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:31:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:28,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:28,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:28,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:28,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 07:31:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:28,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:28,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:28,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:28,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 07:31:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:28,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:28,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:28,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:28,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:28,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:28,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:28,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:29,024 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 07:31:29,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24891574] [2020-09-25 07:31:29,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:29,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:31:29,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592215639] [2020-09-25 07:31:29,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:31:29,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:29,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:31:29,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:31:29,073 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 3 states. [2020-09-25 07:31:30,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:30,363 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-09-25 07:31:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:31:30,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 07:31:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:30,395 INFO L225 Difference]: With dead ends: 365 [2020-09-25 07:31:30,395 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 07:31:30,403 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 07:31:30,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 07:31:30,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-25 07:31:30,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-25 07:31:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 215 transitions. [2020-09-25 07:31:30,570 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 215 transitions. Word has length 153 [2020-09-25 07:31:30,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:30,573 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 215 transitions. [2020-09-25 07:31:30,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:31:30,573 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 215 transitions. [2020-09-25 07:31:30,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 07:31:30,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:30,588 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 07:31:30,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:31:30,590 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:30,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:30,591 INFO L82 PathProgramCache]: Analyzing trace with hash 2008587575, now seen corresponding path program 1 times [2020-09-25 07:31:30,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:30,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320177104] [2020-09-25 07:31:30,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:30,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:30,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:31,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:35,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:35,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 07:31:35,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:31:35,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 07:31:35,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:35,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 07:31:35,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 07:31:35,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,018 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:36,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:36,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 07:31:36,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:36,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 07:31:36,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:36,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:36,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:36,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:36,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:36,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:36,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:31:36,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:36,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:36,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:36,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:36,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:36,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 07:31:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:36,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:36,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:31:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:36,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:31:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:36,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:36,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:36,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:36,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:36,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:36,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:36,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:36,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:36,501 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 07:31:36,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320177104] [2020-09-25 07:31:36,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:36,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:31:36,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024146982] [2020-09-25 07:31:36,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:31:36,506 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:36,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:31:36,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:31:36,510 INFO L87 Difference]: Start difference. First operand 201 states and 215 transitions. Second operand 4 states. [2020-09-25 07:31:36,989 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:31:37,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:37,669 INFO L93 Difference]: Finished difference Result 329 states and 379 transitions. [2020-09-25 07:31:37,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:31:37,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 07:31:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:37,673 INFO L225 Difference]: With dead ends: 329 [2020-09-25 07:31:37,673 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 07:31:37,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 07:31:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 07:31:37,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-25 07:31:37,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-25 07:31:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 214 transitions. [2020-09-25 07:31:37,714 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 214 transitions. Word has length 154 [2020-09-25 07:31:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:37,715 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 214 transitions. [2020-09-25 07:31:37,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:31:37,715 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 214 transitions. [2020-09-25 07:31:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 07:31:37,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:37,717 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] [2020-09-25 07:31:37,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:31:37,718 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:37,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:37,718 INFO L82 PathProgramCache]: Analyzing trace with hash -812596280, now seen corresponding path program 1 times [2020-09-25 07:31:37,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:37,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236167544] [2020-09-25 07:31:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:37,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:40,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:40,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 07:31:40,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:31:40,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2908 [2020-09-25 07:31:40,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:40,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:40,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:40,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 07:31:40,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:31:40,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:40,959 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:40,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:40,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:41,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 07:31:41,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:41,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:41,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:41,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:41,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:41,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:41,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:41,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:41,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:41,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:41,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:31:41,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:41,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:41,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:41,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:41,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 07:31:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:41,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 07:31:41,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:41,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:31:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:41,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:41,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:41,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:41,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:31:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:41,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:41,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:41,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:41,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 07:31:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:41,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:41,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:41,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:41,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:41,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:41,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:41,250 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 07:31:41,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236167544] [2020-09-25 07:31:41,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:41,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:31:41,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596067220] [2020-09-25 07:31:41,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:31:41,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:41,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:31:41,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:31:41,256 INFO L87 Difference]: Start difference. First operand 201 states and 214 transitions. Second operand 4 states. [2020-09-25 07:31:41,955 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:42,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:42,519 INFO L93 Difference]: Finished difference Result 282 states and 310 transitions. [2020-09-25 07:31:42,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:31:42,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-09-25 07:31:42,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:42,527 INFO L225 Difference]: With dead ends: 282 [2020-09-25 07:31:42,527 INFO L226 Difference]: Without dead ends: 221 [2020-09-25 07:31:42,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 07:31:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-25 07:31:42,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-25 07:31:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 07:31:42,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 201 transitions. [2020-09-25 07:31:42,559 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 201 transitions. Word has length 157 [2020-09-25 07:31:42,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:42,560 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 201 transitions. [2020-09-25 07:31:42,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:31:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 201 transitions. [2020-09-25 07:31:42,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 07:31:42,562 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:42,562 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] [2020-09-25 07:31:42,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:31:42,563 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:42,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:42,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1213081293, now seen corresponding path program 1 times [2020-09-25 07:31:42,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:42,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116287931] [2020-09-25 07:31:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:42,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:44,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:44,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 07:31:44,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:44,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1837 [2020-09-25 07:31:44,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:44,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:31:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 07:31:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 07:31:44,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:44,893 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 07:31:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:44,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:31:45,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 07:31:45,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 07:31:45,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 07:31:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:45,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:45,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:45,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:45,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 07:31:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:45,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:45,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:45,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:45,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 07:31:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:45,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:31:45,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:45,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 07:31:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:45,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:45,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:45,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 07:31:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:45,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:45,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:45,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 07:31:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:45,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:45,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:45,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:45,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:31:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:45,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:31:45,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:31:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:45,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:45,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 07:31:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:45,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:45,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:45,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:45,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:45,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:45,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:45,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:45,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:45,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:45,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:45,452 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 07:31:45,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116287931] [2020-09-25 07:31:45,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:45,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:31:45,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692091386] [2020-09-25 07:31:45,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:31:45,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:45,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:31:45,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:31:45,456 INFO L87 Difference]: Start difference. First operand 191 states and 201 transitions. Second operand 8 states. [2020-09-25 07:31:46,137 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:31:47,641 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:31:47,962 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:48,287 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:31:48,595 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 07:31:48,897 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:49,207 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:31:49,547 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 07:31:49,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:49,955 INFO L93 Difference]: Finished difference Result 374 states and 427 transitions. [2020-09-25 07:31:49,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:31:49,955 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-25 07:31:49,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:49,958 INFO L225 Difference]: With dead ends: 374 [2020-09-25 07:31:49,958 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 07:31:49,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:31:49,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 07:31:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 265. [2020-09-25 07:31:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 07:31:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-09-25 07:31:50,000 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 166 [2020-09-25 07:31:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:50,001 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-09-25 07:31:50,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:31:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-09-25 07:31:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 07:31:50,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:50,004 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] [2020-09-25 07:31:50,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:31:50,004 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:50,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:50,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-25 07:31:50,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:50,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114662848] [2020-09-25 07:31:50,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:31:50,072 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:31:50,073 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:31:50,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:31:50,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:31:50 BoogieIcfgContainer [2020-09-25 07:31:50,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:31:50,108 INFO L168 Benchmark]: Toolchain (without parser) took 28771.63 ms. Allocated memory was 138.9 MB in the beginning and 582.5 MB in the end (delta: 443.5 MB). Free memory was 99.9 MB in the beginning and 431.1 MB in the end (delta: -331.1 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:50,109 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 07:31:50,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.91 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.3 MB in the beginning and 172.8 MB in the end (delta: -73.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:50,111 INFO L168 Benchmark]: Boogie Preprocessor took 104.71 ms. Allocated memory is still 202.4 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:50,112 INFO L168 Benchmark]: RCFGBuilder took 1363.81 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.7 MB in the beginning and 184.0 MB in the end (delta: -15.3 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:50,113 INFO L168 Benchmark]: TraceAbstraction took 26529.25 ms. Allocated memory was 234.9 MB in the beginning and 582.5 MB in the end (delta: 347.6 MB). Free memory was 184.0 MB in the beginning and 431.1 MB in the end (delta: -247.1 MB). Peak memory consumption was 100.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:31:50,117 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.91 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.3 MB in the beginning and 172.8 MB in the end (delta: -73.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.71 ms. Allocated memory is still 202.4 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1363.81 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 168.7 MB in the beginning and 184.0 MB in the end (delta: -15.3 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26529.25 ms. Allocated memory was 234.9 MB in the beginning and 582.5 MB in the end (delta: 347.6 MB). Free memory was 184.0 MB in the beginning and 431.1 MB in the end (delta: -247.1 MB). Peak memory consumption was 100.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 749 SDtfs, 634 SDslu, 682 SDs, 0 SdLazy, 1292 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 132 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 801 NumberOfCodeBlocks, 801 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 626 ConstructedInterpolants, 0 QuantifiedInterpolants, 242494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...