/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_spec3_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:49:38,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:49:38,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:49:38,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:49:38,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:49:38,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:49:38,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:49:38,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:49:38,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:49:38,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:49:38,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:49:38,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:49:38,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:49:38,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:49:38,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:49:38,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:49:38,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:49:38,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:49:38,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:49:38,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:49:38,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:49:38,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:49:38,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:49:38,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:49:38,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:49:38,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:49:38,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:49:38,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:49:38,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:49:38,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:49:38,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:49:38,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:49:38,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:49:38,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:49:38,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:49:38,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:49:38,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:49:38,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:49:38,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:49:38,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:49:38,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:49:38,221 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 16:49:38,252 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:49:38,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:49:38,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:49:38,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:49:38,254 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:49:38,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:49:38,255 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:49:38,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:49:38,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:49:38,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:49:38,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:49:38,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:49:38,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:49:38,257 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:49:38,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:49:38,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:49:38,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:49:38,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:49:38,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:49:38,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:49:38,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:49:38,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:49:38,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:49:38,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:49:38,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:49:38,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:49:38,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:49:38,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:49:38,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:49:38,260 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 16:49:38,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:49:38,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:49:38,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:49:38,725 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:49:38,726 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:49:38,728 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-24 16:49:38,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/624e954e5/ebbe07ea9640424aa34989c737e16169/FLAGdb5112b00 [2020-09-24 16:49:39,392 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:49:39,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-09-24 16:49:39,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/624e954e5/ebbe07ea9640424aa34989c737e16169/FLAGdb5112b00 [2020-09-24 16:49:39,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/624e954e5/ebbe07ea9640424aa34989c737e16169 [2020-09-24 16:49:39,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:49:39,695 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:49:39,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:39,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:49:39,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:49:39,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:39" (1/1) ... [2020-09-24 16:49:39,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d90d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:39, skipping insertion in model container [2020-09-24 16:49:39,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:39" (1/1) ... [2020-09-24 16:49:39,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:49:39,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:49:40,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:40,259 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:49:40,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:49:40,370 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:49:40,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40 WrapperNode [2020-09-24 16:49:40,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:49:40,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:49:40,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:49:40,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:49:40,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (1/1) ... [2020-09-24 16:49:40,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (1/1) ... [2020-09-24 16:49:40,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (1/1) ... [2020-09-24 16:49:40,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (1/1) ... [2020-09-24 16:49:40,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (1/1) ... [2020-09-24 16:49:40,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (1/1) ... [2020-09-24 16:49:40,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (1/1) ... [2020-09-24 16:49:40,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:49:40,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:49:40,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:49:40,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:49:40,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (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 16:49:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:49:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:49:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:49:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:49:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:49:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:49:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:49:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:49:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:49:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:49:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:49:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:49:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:49:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:49:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:49:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:49:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:49:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:49:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:49:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:49:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:49:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:49:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:49:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:49:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:49:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:49:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:49:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 16:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:49:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:49:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:49:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:49:41,828 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:49:41,828 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:49:41,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:41 BoogieIcfgContainer [2020-09-24 16:49:41,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:49:41,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:49:41,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:49:41,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:49:41,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:49:39" (1/3) ... [2020-09-24 16:49:41,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b6a54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:41, skipping insertion in model container [2020-09-24 16:49:41,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:40" (2/3) ... [2020-09-24 16:49:41,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b6a54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:41, skipping insertion in model container [2020-09-24 16:49:41,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:41" (3/3) ... [2020-09-24 16:49:41,845 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-09-24 16:49:41,856 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:49:41,868 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:49:41,887 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:49:41,915 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:49:41,916 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:49:41,916 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:49:41,916 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:49:41,916 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:49:41,916 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:49:41,916 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:49:41,917 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:49:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states. [2020-09-24 16:49:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 16:49:41,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:41,964 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] [2020-09-24 16:49:41,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:41,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:41,972 INFO L82 PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times [2020-09-24 16:49:41,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:41,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714850594] [2020-09-24 16:49:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:42,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:44,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:47,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:47,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 16:49:47,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:49:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5239 [2020-09-24 16:49:47,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 16:49:47,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 16:49:48,073 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:49:48,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:49:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:49:48,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 16:49:48,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:48,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 16:49:48,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:49:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:48,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:48,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:48,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:48,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:49:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,336 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:48,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:48,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:48,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:48,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:49:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,349 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:48,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:49:48,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:48,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:49:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:48,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:48,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:48,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:48,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:49:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:48,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:49:48,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:48,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:49:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,387 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:48,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:48,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:48,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:49:48,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 16:49:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:48,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:48,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:48,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:48,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:48,450 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 16:49:48,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714850594] [2020-09-24 16:49:48,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:49:48,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:49:48,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793330406] [2020-09-24 16:49:48,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:49:48,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:49:48,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:49:48,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:49:48,487 INFO L87 Difference]: Start difference. First operand 262 states. Second operand 3 states. [2020-09-24 16:49:49,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:49:49,701 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-09-24 16:49:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:49:49,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 16:49:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:49:49,735 INFO L225 Difference]: With dead ends: 374 [2020-09-24 16:49:49,735 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 16:49:49,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:49:49,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 16:49:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-24 16:49:49,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 16:49:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-09-24 16:49:49,846 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-09-24 16:49:49,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:49:49,847 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-09-24 16:49:49,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:49:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-09-24 16:49:49,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 16:49:49,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:49,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:49:49,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:49:49,853 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:49,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:49,853 INFO L82 PathProgramCache]: Analyzing trace with hash -116924770, now seen corresponding path program 1 times [2020-09-24 16:49:49,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:49,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024327626] [2020-09-24 16:49:49,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:49,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:50,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 16:49:56,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:49:56,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6419 [2020-09-24 16:49:56,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:49:56,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 16:49:56,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 16:49:56,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,652 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:49:56,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:49:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:56,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:49:56,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 16:49:56,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:56,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 16:49:56,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:49:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:56,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:56,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:56,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:49:56,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:56,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:49:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:56,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:56,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:56,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:56,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:49:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:56,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:56,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:49:56,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:49:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:49:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:56,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,983 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:49:56,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:56,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:56,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:49:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:49:56,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:49:56,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 16:49:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:56,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:56,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:56,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:49:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:56,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:56,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:56,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:56,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:56,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:56,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:56,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:56,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:56,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:56,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 16:49:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:57,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:57,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:49:57,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:49:57,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:49:57,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:49:57,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:49:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:49:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:49:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:49:57,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:49:57,031 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 16:49:57,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024327626] [2020-09-24 16:49:57,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:49:57,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:49:57,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544969466] [2020-09-24 16:49:57,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:49:57,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:49:57,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:49:57,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:49:57,036 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-09-24 16:49:57,532 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:49:58,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:49:58,211 INFO L93 Difference]: Finished difference Result 338 states and 389 transitions. [2020-09-24 16:49:58,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:49:58,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 16:49:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:49:58,216 INFO L225 Difference]: With dead ends: 338 [2020-09-24 16:49:58,216 INFO L226 Difference]: Without dead ends: 243 [2020-09-24 16:49:58,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:49:58,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-24 16:49:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-09-24 16:49:58,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-09-24 16:49:58,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions. [2020-09-24 16:49:58,259 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 154 [2020-09-24 16:49:58,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:49:58,260 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 218 transitions. [2020-09-24 16:49:58,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:49:58,260 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions. [2020-09-24 16:49:58,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 16:49:58,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:49:58,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:49:58,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:49:58,264 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:49:58,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:49:58,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1405281004, now seen corresponding path program 1 times [2020-09-24 16:49:58,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:49:58,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156390074] [2020-09-24 16:49:58,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:49:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:49:58,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:49:58,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 16:50:01,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:50:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2757 [2020-09-24 16:50:01,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 16:50:01,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:50:01,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,357 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:01,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:01,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 16:50:01,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:01,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,540 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:01,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:01,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:01,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:01,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:01,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:01,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:01,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:01,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:01,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:01,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:50:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,563 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:01,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:50:01,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 16:50:01,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 16:50:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:01,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:01,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:01,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:50:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:01,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 16:50:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:01,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:01,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:01,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:01,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:01,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:01,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:01,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:01,611 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 16:50:01,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156390074] [2020-09-24 16:50:01,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:01,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 16:50:01,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468418124] [2020-09-24 16:50:01,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 16:50:01,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:01,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 16:50:01,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 16:50:01,614 INFO L87 Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 4 states. [2020-09-24 16:50:02,240 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:50:02,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:02,763 INFO L93 Difference]: Finished difference Result 287 states and 316 transitions. [2020-09-24 16:50:02,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 16:50:02,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2020-09-24 16:50:02,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:02,766 INFO L225 Difference]: With dead ends: 287 [2020-09-24 16:50:02,767 INFO L226 Difference]: Without dead ends: 226 [2020-09-24 16:50:02,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:50:02,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-24 16:50:02,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-09-24 16:50:02,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-09-24 16:50:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2020-09-24 16:50:02,800 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 157 [2020-09-24 16:50:02,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:02,801 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2020-09-24 16:50:02,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 16:50:02,801 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2020-09-24 16:50:02,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 16:50:02,804 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:02,804 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] [2020-09-24 16:50:02,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:50:02,805 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:02,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:02,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1664545682, now seen corresponding path program 1 times [2020-09-24 16:50:02,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:02,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294366856] [2020-09-24 16:50:02,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:02,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:04,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:04,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 16:50:04,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:04,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1734 [2020-09-24 16:50:04,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:50:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:50:04,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 16:50:04,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:04,925 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:50:04,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:50:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:50:05,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-24 16:50:05,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:50:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:50:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,308 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:05,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:05,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:05,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:50:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:05,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:05,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:50:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:05,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:50:05,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:50:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:05,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:50:05,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 16:50:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,375 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:50:05,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:50:05,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:50:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:05,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:50:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:50:05,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:05,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:50:05,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 16:50:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:05,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:50:05,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:50:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:05,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 16:50:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:05,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:50:05,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:50:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:50:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:50:05,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:50:05,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 16:50:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:50:05,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:50:05,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:50:05,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:50:05,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:50:05,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:50:05,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:50:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:50:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:50:05,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:50:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:50:05,601 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 16:50:05,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294366856] [2020-09-24 16:50:05,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:50:05,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:50:05,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695192363] [2020-09-24 16:50:05,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:50:05,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:50:05,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:50:05,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:50:05,607 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 10 states. [2020-09-24 16:50:06,207 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:07,619 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:08,001 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:50:08,345 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:50:08,646 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:50:08,960 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:50:09,292 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:09,599 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:50:09,980 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:50:10,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:50:10,495 INFO L93 Difference]: Finished difference Result 433 states and 511 transitions. [2020-09-24 16:50:10,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:50:10,495 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-09-24 16:50:10,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:50:10,501 INFO L225 Difference]: With dead ends: 433 [2020-09-24 16:50:10,501 INFO L226 Difference]: Without dead ends: 348 [2020-09-24 16:50:10,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 16:50:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-24 16:50:10,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 273. [2020-09-24 16:50:10,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-24 16:50:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-24 16:50:10,552 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 170 [2020-09-24 16:50:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:50:10,553 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-24 16:50:10,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:50:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-24 16:50:10,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 16:50:10,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:50:10,557 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] [2020-09-24 16:50:10,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:50:10,558 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:50:10,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:50:10,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times [2020-09-24 16:50:10,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:50:10,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234554102] [2020-09-24 16:50:10,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:50:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 16:50:10,627 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 16:50:10,627 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 16:50:10,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:50:10,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:50:10 BoogieIcfgContainer [2020-09-24 16:50:10,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:50:10,665 INFO L168 Benchmark]: Toolchain (without parser) took 30974.11 ms. Allocated memory was 141.6 MB in the beginning and 596.6 MB in the end (delta: 455.1 MB). Free memory was 102.2 MB in the beginning and 469.8 MB in the end (delta: -367.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:10,666 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 16:50:10,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.42 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 174.6 MB in the end (delta: -72.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:10,668 INFO L168 Benchmark]: Boogie Preprocessor took 114.49 ms. Allocated memory is still 206.0 MB. Free memory was 174.6 MB in the beginning and 170.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:10,669 INFO L168 Benchmark]: RCFGBuilder took 1349.08 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 170.9 MB in the beginning and 178.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:10,670 INFO L168 Benchmark]: TraceAbstraction took 28825.72 ms. Allocated memory was 235.4 MB in the beginning and 596.6 MB in the end (delta: 361.2 MB). Free memory was 178.8 MB in the beginning and 469.8 MB in the end (delta: -291.0 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2020-09-24 16:50:10,674 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 675.42 ms. Allocated memory was 141.6 MB in the beginning and 206.0 MB in the end (delta: 64.5 MB). Free memory was 101.7 MB in the beginning and 174.6 MB in the end (delta: -72.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.49 ms. Allocated memory is still 206.0 MB. Free memory was 174.6 MB in the beginning and 170.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1349.08 ms. Allocated memory was 206.0 MB in the beginning and 235.4 MB in the end (delta: 29.4 MB). Free memory was 170.9 MB in the beginning and 178.8 MB in the end (delta: -8.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28825.72 ms. Allocated memory was 235.4 MB in the beginning and 596.6 MB in the end (delta: 361.2 MB). Free memory was 178.8 MB in the beginning and 469.8 MB in the end (delta: -291.0 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int pumpRunning = 0; [L463] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L779] int waterLevel = 1; [L780] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; [L761] FCALL select_helpers() [L762] FCALL select_features() [L763] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L763] RET, EXPR valid_product() [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) [L767] FCALL setup() [L768] CALL runTest() [L750] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) [L638] CALL waterRise() [L797] COND TRUE waterLevel < 2 [L798] waterLevel = waterLevel + 1 [L638] RET waterRise() [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L658] CALL startSystem() [L573] systemActive = 1 [L658] RET startSystem() [L671] CALL timeShift() [L470] COND FALSE !(\read(pumpRunning)) [L477] COND TRUE \read(systemActive) [L479] FCALL processEnvironment() [L485] CALL __utac_acc__Specification3_spec__1() [L580] int tmp ; [L581] int tmp___0 ; [L582] int tmp___1 ; [L586] CALL, EXPR isMethaneLevelCritical() [L818] int retValue_acc ; [L821] retValue_acc = methaneLevelCritical [L822] return (retValue_acc); [L586] RET, EXPR isMethaneLevelCritical() [L586] tmp = isMethaneLevelCritical() [L588] COND FALSE !(\read(tmp)) [L592] CALL, EXPR getWaterLevel() [L850] int retValue_acc ; [L853] retValue_acc = waterLevel [L854] return (retValue_acc); [L592] RET, EXPR getWaterLevel() [L592] tmp___0 = getWaterLevel() [L594] COND TRUE tmp___0 == 2 [L596] CALL, EXPR isPumpRunning() [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); [L596] RET, EXPR isPumpRunning() [L596] tmp___1 = isPumpRunning() [L598] COND FALSE !(\read(tmp___1)) [L602] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 767 SDtfs, 927 SDslu, 822 SDs, 0 SdLazy, 1488 SolverSat, 303 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 182 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.0s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 630 ConstructedInterpolants, 0 QuantifiedInterpolants, 253846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...