/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:53:22,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:53:22,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:53:22,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:53:22,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:53:22,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:53:22,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:53:22,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:53:22,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:53:22,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:53:22,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:53:22,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:53:22,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:53:22,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:53:22,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:53:22,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:53:22,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:53:22,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:53:22,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:53:22,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:53:22,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:53:22,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:53:22,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:53:22,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:53:22,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:53:22,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:53:22,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:53:22,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:53:22,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:53:22,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:53:22,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:53:22,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:53:22,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:53:22,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:53:22,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:53:22,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:53:22,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:53:22,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:53:22,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:53:22,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:53:22,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:53:22,984 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 [2020-09-24 16:53:23,012 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:53:23,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:53:23,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:53:23,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:53:23,014 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:53:23,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:53:23,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:53:23,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:53:23,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:53:23,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:53:23,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:53:23,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:53:23,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:53:23,016 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:53:23,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:53:23,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:53:23,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:53:23,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:53:23,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:53:23,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:53:23,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:53:23,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:53:23,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:53:23,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:53:23,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:53:23,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:53:23,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:53:23,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:53:23,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:53:23,019 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;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;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;log-additional-information=true; [2020-09-24 16:53:23,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:53:23,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:53:23,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:53:23,516 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:53:23,516 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:53:23,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product14.cil.c [2020-09-24 16:53:23,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ed99b200/4d14aae8d75144108b48d5618e0ed095/FLAG3e92f75d9 [2020-09-24 16:53:24,177 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:53:24,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product14.cil.c [2020-09-24 16:53:24,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ed99b200/4d14aae8d75144108b48d5618e0ed095/FLAG3e92f75d9 [2020-09-24 16:53:24,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ed99b200/4d14aae8d75144108b48d5618e0ed095 [2020-09-24 16:53:24,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:53:24,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:53:24,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:53:24,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:53:24,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:53:24,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:53:24" (1/1) ... [2020-09-24 16:53:24,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656a7a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:24, skipping insertion in model container [2020-09-24 16:53:24,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:53:24" (1/1) ... [2020-09-24 16:53:24,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:53:24,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:53:24,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:53:24,982 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:53:25,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:53:25,092 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:53:25,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25 WrapperNode [2020-09-24 16:53:25,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:53:25,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:53:25,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:53:25,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:53:25,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (1/1) ... [2020-09-24 16:53:25,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (1/1) ... [2020-09-24 16:53:25,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (1/1) ... [2020-09-24 16:53:25,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (1/1) ... [2020-09-24 16:53:25,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (1/1) ... [2020-09-24 16:53:25,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (1/1) ... [2020-09-24 16:53:25,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (1/1) ... [2020-09-24 16:53:25,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:53:25,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:53:25,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:53:25,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:53:25,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (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 [2020-09-24 16:53:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:53:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:53:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:53:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:53:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:53:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:53:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:53:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:53:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:53:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:53:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:53:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:53:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:53:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:53:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:53:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:53:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:53:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:53:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:53:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:53:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:53:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:53:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:53:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 16:53:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:53:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:53:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:53:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:53:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:53:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:53:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:53:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:53:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:53:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:53:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:53:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:53:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 16:53:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:53:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:53:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:53:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:53:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:53:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:53:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:53:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:53:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:53:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:53:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:53:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:53:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:53:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:53:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:53:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:53:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:53:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:53:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:53:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:53:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:53:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:53:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:53:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:53:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:53:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:53:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:53:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:53:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:53:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:53:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:53:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:53:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:53:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:53:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:53:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:53:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:53:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:53:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 16:53:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:53:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:53:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:53:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 16:53:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:53:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:53:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:53:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:53:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:53:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:53:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:53:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:53:26,461 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:53:26,461 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:53:26,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:53:26 BoogieIcfgContainer [2020-09-24 16:53:26,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:53:26,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:53:26,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:53:26,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:53:26,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:53:24" (1/3) ... [2020-09-24 16:53:26,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b446d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:53:26, skipping insertion in model container [2020-09-24 16:53:26,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:25" (2/3) ... [2020-09-24 16:53:26,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b446d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:53:26, skipping insertion in model container [2020-09-24 16:53:26,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:53:26" (3/3) ... [2020-09-24 16:53:26,485 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product14.cil.c [2020-09-24 16:53:26,498 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:53:26,510 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:53:26,533 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:53:26,563 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:53:26,563 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:53:26,564 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:53:26,564 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:53:26,564 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:53:26,564 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:53:26,564 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:53:26,564 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:53:26,588 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-09-24 16:53:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:53:26,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:53:26,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:53:26,608 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:53:26,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:53:26,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1699265517, now seen corresponding path program 1 times [2020-09-24 16:53:26,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:53:26,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051242233] [2020-09-24 16:53:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:53:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:27,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:28,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:29,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:40,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:42,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:42,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:53:42,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:53:42,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15756 [2020-09-24 16:53:42,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:53:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:53:42,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 16:53:42,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:53:43,351 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:53:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:53:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:43,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:43,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:43,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:53:43,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:43,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 16:53:43,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:43,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:53:43,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:53:43,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:53:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:43,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:43,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:53:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:53:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:53:43,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:43,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:53:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:43,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:43,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:43,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:53:43,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:43,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:53:43,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:43,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:43,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:43,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:53:43,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:43,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:53:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:43,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:43,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:43,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:53:43,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:43,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:53:43,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:43,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:53:43,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:43,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:53:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:43,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:43,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:43,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:53:43,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:53:43,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:53:43,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:43,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:53:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:43,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:43,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:43,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:53:43,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:53:43,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:53:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:43,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:53:43,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:53:43,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:53:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:43,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:43,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:43,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:53:43,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:43,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:53:43,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:43,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:53:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:53:43,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:53:43,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:53:43,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051242233] [2020-09-24 16:53:43,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:53:43,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:53:43,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415594788] [2020-09-24 16:53:43,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:53:43,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:53:43,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:53:43,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:53:43,882 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 8 states. [2020-09-24 16:53:44,478 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:53:45,465 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:53:45,810 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:53:46,260 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:53:46,636 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:53:46,990 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:53:47,319 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:53:47,632 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:53:49,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:53:49,109 INFO L93 Difference]: Finished difference Result 530 states and 655 transitions. [2020-09-24 16:53:49,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:53:49,111 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 16:53:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:53:49,134 INFO L225 Difference]: With dead ends: 530 [2020-09-24 16:53:49,134 INFO L226 Difference]: Without dead ends: 368 [2020-09-24 16:53:49,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 16:53:49,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-09-24 16:53:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 326. [2020-09-24 16:53:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-09-24 16:53:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 366 transitions. [2020-09-24 16:53:49,286 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 366 transitions. Word has length 142 [2020-09-24 16:53:49,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:53:49,287 INFO L479 AbstractCegarLoop]: Abstraction has 326 states and 366 transitions. [2020-09-24 16:53:49,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:53:49,288 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 366 transitions. [2020-09-24 16:53:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:53:49,295 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:53:49,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:53:49,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:53:49,296 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:53:49,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:53:49,296 INFO L82 PathProgramCache]: Analyzing trace with hash 359727385, now seen corresponding path program 1 times [2020-09-24 16:53:49,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:53:49,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785719645] [2020-09-24 16:53:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:53:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:49,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:49,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:50,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:54,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:57,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:57,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 16:53:57,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 16:53:57,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8357 [2020-09-24 16:53:57,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:53:57,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:53:57,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 16:53:57,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,046 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:53:58,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:53:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,313 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:53:58,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 16:53:58,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:53:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:53:58,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:53:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:53:58,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:53:58,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:58,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:53:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:53:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:53:58,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:53:58,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:53:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:53:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:53:58,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 16:53:58,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:58,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:58,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:53:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:53:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:53:58,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:53:58,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:58,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:58,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:53:58,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 16:53:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:53:58,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:53:58,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:53:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:53:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:53:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 16:53:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:53:58,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:53:58,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:53:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:53:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:53:58,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 16:53:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:53:58,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:53:58,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:53:58,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:53:58,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:53:58,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:53:58,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:53:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:53:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:53:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:53:58,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:53:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:53:58,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785719645] [2020-09-24 16:53:58,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:53:58,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:53:58,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194080761] [2020-09-24 16:53:58,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:53:58,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:53:58,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:53:58,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:53:58,511 INFO L87 Difference]: Start difference. First operand 326 states and 366 transitions. Second operand 5 states. [2020-09-24 16:53:59,036 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:54:00,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:54:00,028 INFO L93 Difference]: Finished difference Result 591 states and 717 transitions. [2020-09-24 16:54:00,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:54:00,030 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 16:54:00,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:54:00,035 INFO L225 Difference]: With dead ends: 591 [2020-09-24 16:54:00,035 INFO L226 Difference]: Without dead ends: 375 [2020-09-24 16:54:00,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:54:00,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2020-09-24 16:54:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 324. [2020-09-24 16:54:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-09-24 16:54:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 360 transitions. [2020-09-24 16:54:00,099 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 360 transitions. Word has length 148 [2020-09-24 16:54:00,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:54:00,099 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 360 transitions. [2020-09-24 16:54:00,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:54:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 360 transitions. [2020-09-24 16:54:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 16:54:00,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:54:00,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:54:00,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:54:00,104 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:54:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:54:00,104 INFO L82 PathProgramCache]: Analyzing trace with hash 782992610, now seen corresponding path program 1 times [2020-09-24 16:54:00,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:54:00,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672646310] [2020-09-24 16:54:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:54:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:54:00,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:00,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:00,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:05,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:54:05,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking...