/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=WIDEST --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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:59:20,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:59:20,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:59:20,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:59:20,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:59:20,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:59:20,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:59:20,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:59:20,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:59:20,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:59:20,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:59:20,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:59:20,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:59:20,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:59:20,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:59:20,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:59:20,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:59:20,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:59:20,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:59:20,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:59:20,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:59:20,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:59:20,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:59:20,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:59:20,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:59:20,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:59:20,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:59:20,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:59:20,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:59:20,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:59:20,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:59:20,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:59:20,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:59:20,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:59:20,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:59:20,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:59:20,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:59:20,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:59:20,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:59:20,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:59:20,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:59:20,858 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 02:59:20,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:59:20,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:59:20,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:59:20,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:59:20,891 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:59:20,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:59:20,892 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:59:20,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:59:20,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:59:20,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:59:20,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:59:20,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:59:20,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:59:20,893 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:59:20,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:59:20,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:59:20,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:59:20,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:59:20,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:59:20,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:59:20,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:59:20,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:59:20,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:59:20,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:59:20,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:59:20,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:59:20,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:59:20,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:59:20,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:59:20,897 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:59:21,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:59:21,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:59:21,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:59:21,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:59:21,394 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:59:21,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 02:59:21,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/522103785/dbac8cf1f8f54ce8a0f5a7cf305cdc83/FLAG109a051db [2020-09-25 02:59:22,086 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:59:22,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product39.cil.c [2020-09-25 02:59:22,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/522103785/dbac8cf1f8f54ce8a0f5a7cf305cdc83/FLAG109a051db [2020-09-25 02:59:22,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/522103785/dbac8cf1f8f54ce8a0f5a7cf305cdc83 [2020-09-25 02:59:22,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:59:22,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:59:22,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:22,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:59:22,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:59:22,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:22" (1/1) ... [2020-09-25 02:59:22,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:22, skipping insertion in model container [2020-09-25 02:59:22,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:22" (1/1) ... [2020-09-25 02:59:22,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:59:22,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:59:22,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:22,978 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:59:23,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:23,105 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:59:23,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23 WrapperNode [2020-09-25 02:59:23,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:23,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:59:23,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:59:23,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:59:23,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (1/1) ... [2020-09-25 02:59:23,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (1/1) ... [2020-09-25 02:59:23,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (1/1) ... [2020-09-25 02:59:23,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (1/1) ... [2020-09-25 02:59:23,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (1/1) ... [2020-09-25 02:59:23,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (1/1) ... [2020-09-25 02:59:23,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (1/1) ... [2020-09-25 02:59:23,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:59:23,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:59:23,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:59:23,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:59:23,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (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 02:59:23,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:59:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:59:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:23,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:59:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:59:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:59:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:59:23,310 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:59:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:59:23,311 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:59:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:59:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:59:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:59:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:59:23,312 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:59:23,313 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:59:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:59:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:59:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:59:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:59:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:59:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:59:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:59:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:59:23,316 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:59:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:59:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:59:23,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:59:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:59:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:59:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:59:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:59:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:59:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:59:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:59:23,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:59:23,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:59:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:59:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:59:23,320 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:59:23,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:59:23,322 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:59:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:59:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:59:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:59:23,323 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:59:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:59:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:59:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:59:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:59:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:59:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:59:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:59:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:59:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:59:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:59:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:59:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:59:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:59:23,329 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:59:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:59:23,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:59:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:59:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:59:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:59:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:23,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:59:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:59:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:59:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:59:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:59:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:59:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:59:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:59:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:59:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:59:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:59:24,587 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:59:24,588 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:59:24,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:24 BoogieIcfgContainer [2020-09-25 02:59:24,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:59:24,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:59:24,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:59:24,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:59:24,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:59:22" (1/3) ... [2020-09-25 02:59:24,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0f81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:24, skipping insertion in model container [2020-09-25 02:59:24,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:23" (2/3) ... [2020-09-25 02:59:24,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0f81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:24, skipping insertion in model container [2020-09-25 02:59:24,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:24" (3/3) ... [2020-09-25 02:59:24,616 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2020-09-25 02:59:24,630 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:59:24,647 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:59:24,672 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:59:24,718 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:59:24,719 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:59:24,719 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:59:24,719 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:59:24,719 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:59:24,719 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:59:24,719 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:59:24,719 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:59:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 02:59:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:59:24,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:24,801 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 02:59:24,803 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:24,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:24,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1883472631, now seen corresponding path program 1 times [2020-09-25 02:59:24,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:24,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457706610] [2020-09-25 02:59:24,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:25,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:25,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:27,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:30,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:30,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:59:30,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:30,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 02:59:30,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:30,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:59:30,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:59:30,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 02:59:30,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:59:30,954 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:30,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:31,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 02:59:31,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:31,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:31,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:59:31,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:31,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:59:31,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:31,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:31,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:31,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:31,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:31,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:31,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:31,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:31,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:31,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:31,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:31,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:59:31,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:31,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:31,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:31,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:31,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:31,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:31,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:31,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:59:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:31,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:31,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:31,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:31,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:31,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:59:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:31,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:59:31,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:31,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:31,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:59:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:31,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:31,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:31,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:31,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:31,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:31,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:31,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:31,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:31,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:31,572 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 02:59:31,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457706610] [2020-09-25 02:59:31,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:31,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:59:31,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665275268] [2020-09-25 02:59:31,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:59:31,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:31,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:59:31,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:59:31,609 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-25 02:59:32,252 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:34,258 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:34,652 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:35,083 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:35,521 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:35,870 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:36,211 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:36,527 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:37,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:37,881 INFO L93 Difference]: Finished difference Result 671 states and 831 transitions. [2020-09-25 02:59:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:59:37,886 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:59:37,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:37,906 INFO L225 Difference]: With dead ends: 671 [2020-09-25 02:59:37,907 INFO L226 Difference]: Without dead ends: 464 [2020-09-25 02:59:37,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 02:59:37,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-25 02:59:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 416. [2020-09-25 02:59:38,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-25 02:59:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 474 transitions. [2020-09-25 02:59:38,068 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 474 transitions. Word has length 153 [2020-09-25 02:59:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:38,069 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 474 transitions. [2020-09-25 02:59:38,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:59:38,069 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 474 transitions. [2020-09-25 02:59:38,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 02:59:38,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:38,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:38,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:59:38,077 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:38,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:38,077 INFO L82 PathProgramCache]: Analyzing trace with hash 886163450, now seen corresponding path program 1 times [2020-09-25 02:59:38,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:38,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538577922] [2020-09-25 02:59:38,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 02:59:39,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1174 [2020-09-25 02:59:39,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:59:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:59:39,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:59:39,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:39,690 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:39,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:39,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 02:59:39,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:59:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:40,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:40,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:40,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:40,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:40,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:59:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:40,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:59:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:40,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:40,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:59:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:59:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:40,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:40,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:40,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:40,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 02:59:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:40,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:40,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:40,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:40,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 02:59:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:40,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:40,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:40,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:40,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,157 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 02:59:40,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538577922] [2020-09-25 02:59:40,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:40,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:59:40,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058878962] [2020-09-25 02:59:40,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:59:40,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:40,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:59:40,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:59:40,162 INFO L87 Difference]: Start difference. First operand 416 states and 474 transitions. Second operand 6 states. [2020-09-25 02:59:40,632 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:41,523 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:44,270 INFO L93 Difference]: Finished difference Result 1294 states and 1612 transitions. [2020-09-25 02:59:44,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:59:44,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 02:59:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:44,283 INFO L225 Difference]: With dead ends: 1294 [2020-09-25 02:59:44,283 INFO L226 Difference]: Without dead ends: 988 [2020-09-25 02:59:44,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:59:44,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-09-25 02:59:44,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 879. [2020-09-25 02:59:44,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-09-25 02:59:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1039 transitions. [2020-09-25 02:59:44,490 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1039 transitions. Word has length 168 [2020-09-25 02:59:44,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:44,491 INFO L479 AbstractCegarLoop]: Abstraction has 879 states and 1039 transitions. [2020-09-25 02:59:44,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:59:44,491 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1039 transitions. [2020-09-25 02:59:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 02:59:44,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:44,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:44,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:59:44,502 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:44,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:44,503 INFO L82 PathProgramCache]: Analyzing trace with hash -755283321, now seen corresponding path program 1 times [2020-09-25 02:59:44,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:44,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808340894] [2020-09-25 02:59:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:44,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:44,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 02:59:49,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:59:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 02:59:49,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:59:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:59:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 02:59:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,899 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:49,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:50,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 02:59:50,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:59:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:50,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:50,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:50,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:50,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:59:50,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:50,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:50,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:50,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:50,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:50,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:59:50,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:50,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:50,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:50,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:50,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:59:50,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:59:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:50,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:59:50,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:59:50,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 02:59:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:59:50,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:59:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:59:50,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:59:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:59:50,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:59:50,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:59:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:59:50,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:59:50,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:59:50,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:59:50,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:59:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:50,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:50,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:50,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:50,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 02:59:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:50,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:50,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:50,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:50,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 02:59:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:50,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:50,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:50,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:50,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 02:59:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:50,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:50,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:50,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:50,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:50,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:50,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:50,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:50,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:50,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:50,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:50,536 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 02:59:50,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808340894] [2020-09-25 02:59:50,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:50,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:59:50,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33871607] [2020-09-25 02:59:50,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:59:50,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:50,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:59:50,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:59:50,540 INFO L87 Difference]: Start difference. First operand 879 states and 1039 transitions. Second operand 8 states. [2020-09-25 02:59:51,059 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:52,832 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:59:54,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:54,921 INFO L93 Difference]: Finished difference Result 2312 states and 3025 transitions. [2020-09-25 02:59:54,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 02:59:54,921 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-09-25 02:59:54,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:54,935 INFO L225 Difference]: With dead ends: 2312 [2020-09-25 02:59:54,936 INFO L226 Difference]: Without dead ends: 1543 [2020-09-25 02:59:54,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:59:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-09-25 02:59:55,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1266. [2020-09-25 02:59:55,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-09-25 02:59:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1496 transitions. [2020-09-25 02:59:55,266 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1496 transitions. Word has length 181 [2020-09-25 02:59:55,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:55,267 INFO L479 AbstractCegarLoop]: Abstraction has 1266 states and 1496 transitions. [2020-09-25 02:59:55,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:59:55,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1496 transitions. [2020-09-25 02:59:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 02:59:55,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:55,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:55,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:59:55,272 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:55,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:55,272 INFO L82 PathProgramCache]: Analyzing trace with hash 82436204, now seen corresponding path program 1 times [2020-09-25 02:59:55,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:55,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012898474] [2020-09-25 02:59:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:59:55,344 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:59:55,344 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:59:55,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:59:55,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:59:55 BoogieIcfgContainer [2020-09-25 02:59:55,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:59:55,381 INFO L168 Benchmark]: Toolchain (without parser) took 33011.37 ms. Allocated memory was 137.4 MB in the beginning and 636.0 MB in the end (delta: 498.6 MB). Free memory was 99.4 MB in the beginning and 543.0 MB in the end (delta: -443.6 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:55,382 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 02:59:55,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.22 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.7 MB in the beginning and 170.4 MB in the end (delta: -71.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:55,384 INFO L168 Benchmark]: Boogie Preprocessor took 99.35 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:55,385 INFO L168 Benchmark]: RCFGBuilder took 1393.96 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 165.4 MB in the beginning and 174.1 MB in the end (delta: -8.7 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:55,386 INFO L168 Benchmark]: TraceAbstraction took 30774.10 ms. Allocated memory was 231.2 MB in the beginning and 636.0 MB in the end (delta: 404.8 MB). Free memory was 174.1 MB in the beginning and 543.0 MB in the end (delta: -368.9 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:55,390 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.22 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.7 MB in the beginning and 170.4 MB in the end (delta: -71.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.35 ms. Allocated memory is still 201.9 MB. Free memory was 170.4 MB in the beginning and 166.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1393.96 ms. Allocated memory was 201.9 MB in the beginning and 231.2 MB in the end (delta: 29.4 MB). Free memory was 165.4 MB in the beginning and 174.1 MB in the end (delta: -8.7 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30774.10 ms. Allocated memory was 231.2 MB in the beginning and 636.0 MB in the end (delta: 404.8 MB). Free memory was 174.1 MB in the beginning and 543.0 MB in the end (delta: -368.9 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; [L895] int retValue_acc ; [L896] int tmp ; [L900] FCALL select_helpers() [L901] FCALL select_features() [L902] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L902] RET, EXPR valid_product() [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) [L906] FCALL setup() [L907] CALL runTest() [L889] CALL test() [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 [L390] COND TRUE 1 [L392] COND TRUE splverifierCounter < 4 [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) [L402] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L402] RET waterRise() [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) [L428] CALL stopSystem() [L367] COND FALSE !(\read(pumpRunning)) [L374] systemActive = 0 [L428] RET stopSystem() [L435] CALL timeShift() [L193] COND FALSE !(\read(pumpRunning)) [L200] COND FALSE !(\read(systemActive)) [L208] CALL __utac_acc__Specification3_spec__1() [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L925] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L925] RET, EXPR isMethaneLevelCritical() [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L931] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L931] RET, EXPR getWaterLevel() [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L935] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L935] RET, EXPR isPumpRunning() [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) [L941] CALL __automaton_fail() [L451] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 630 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 915 SDtfs, 2197 SDslu, 1263 SDs, 0 SdLazy, 2939 SolverSat, 845 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 3 MinimizatonAttempts, 434 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 499 ConstructedInterpolants, 0 QuantifiedInterpolants, 263770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...