/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:48:53,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:48:53,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:48:53,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:48:53,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:48:53,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:48:53,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:48:53,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:48:53,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:48:53,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:48:53,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:48:53,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:48:53,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:48:53,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:48:53,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:48:53,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:48:53,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:48:53,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:48:53,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:48:53,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:48:53,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:48:53,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:48:53,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:48:53,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:48:53,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:48:53,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:48:53,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:48:53,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:48:53,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:48:53,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:48:53,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:48:53,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:48:53,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:48:53,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:48:53,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:48:53,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:48:53,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:48:53,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:48:53,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:48:53,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:48:53,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:48:53,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:48:53,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:48:53,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:48:53,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:48:53,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:48:53,235 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:48:53,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:48:53,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:48:53,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:48:53,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:48:53,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:48:53,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:48:53,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:48:53,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:48:53,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:48:53,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:48:53,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:48:53,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:48:53,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:48:53,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:48:53,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:48:53,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:48:53,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:48:53,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:48:53,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:48:53,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:48:53,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:48:53,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:48:53,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:48:53,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:48:53,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:48:53,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:48:53,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:48:53,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:48:53,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:48:53,697 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:48:53,698 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 01:48:53,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b73fed88/8f3e847288344e09bcdcfe9aa25288cb/FLAGb7d5ef4ff [2020-09-25 01:48:54,355 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:48:54,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 01:48:54,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b73fed88/8f3e847288344e09bcdcfe9aa25288cb/FLAGb7d5ef4ff [2020-09-25 01:48:54,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1b73fed88/8f3e847288344e09bcdcfe9aa25288cb [2020-09-25 01:48:54,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:48:54,631 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:48:54,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:48:54,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:48:54,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:48:54,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:48:54" (1/1) ... [2020-09-25 01:48:54,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:54, skipping insertion in model container [2020-09-25 01:48:54,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:48:54" (1/1) ... [2020-09-25 01:48:54,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:48:54,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:48:55,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:48:55,154 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:48:55,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:48:55,276 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:48:55,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55 WrapperNode [2020-09-25 01:48:55,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:48:55,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:48:55,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:48:55,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:48:55,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... [2020-09-25 01:48:55,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... [2020-09-25 01:48:55,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... [2020-09-25 01:48:55,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... [2020-09-25 01:48:55,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... [2020-09-25 01:48:55,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... [2020-09-25 01:48:55,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... [2020-09-25 01:48:55,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:48:55,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:48:55,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:48:55,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:48:55,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:48:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:48:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:48:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:48:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:48:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:48:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:48:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:48:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:48:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:48:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:48:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:48:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:48:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:48:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:48:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:48:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:48:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:48:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:48:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:48:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:48:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:48:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:48:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:48:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:48:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:48:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:48:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:48:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:48:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:48:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:48:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:48:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:48:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:48:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:48:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:48:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:48:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:48:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:48:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:48:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:48:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:48:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:48:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:48:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:48:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:48:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:48:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:48:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:48:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:48:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:48:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:48:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:48:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:48:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:48:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:48:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:48:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:48:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:48:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:48:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:48:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:48:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:48:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:48:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:48:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:48:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:48:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:48:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:48:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:48:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:48:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:48:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:48:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:48:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:48:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:48:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:48:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:48:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:48:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:48:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:48:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:48:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:48:56,554 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:48:56,555 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:48:56,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:48:56 BoogieIcfgContainer [2020-09-25 01:48:56,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:48:56,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:48:56,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:48:56,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:48:56,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:48:54" (1/3) ... [2020-09-25 01:48:56,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb6bebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:48:56, skipping insertion in model container [2020-09-25 01:48:56,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:55" (2/3) ... [2020-09-25 01:48:56,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb6bebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:48:56, skipping insertion in model container [2020-09-25 01:48:56,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:48:56" (3/3) ... [2020-09-25 01:48:56,571 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-25 01:48:56,582 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:48:56,593 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:48:56,613 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:48:56,640 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:48:56,640 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:48:56,640 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:48:56,640 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:48:56,640 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:48:56,641 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:48:56,641 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:48:56,641 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:48:56,668 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-25 01:48:56,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:48:56,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:56,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:48:56,687 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:56,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:56,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-25 01:48:56,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:56,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209956252] [2020-09-25 01:48:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:57,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:57,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:49:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4052 [2020-09-25 01:49:01,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:49:01,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 01:49:01,626 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:01,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:01,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 01:49:01,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:01,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:01,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:01,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:01,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:01,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:01,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:01,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:49:01,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:01,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:01,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:01,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:01,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:49:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:01,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:01,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:01,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:49:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:01,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:01,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:49:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:01,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:01,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:01,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:01,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:01,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:49:01,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:01,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:01,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:01,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209956252] [2020-09-25 01:49:01,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:01,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:49:01,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052710323] [2020-09-25 01:49:01,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:49:01,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:01,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:49:01,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:49:01,981 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 3 states. [2020-09-25 01:49:03,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:03,069 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-09-25 01:49:03,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:49:03,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:49:03,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:03,090 INFO L225 Difference]: With dead ends: 365 [2020-09-25 01:49:03,091 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 01:49:03,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:49:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 01:49:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-25 01:49:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-25 01:49:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 215 transitions. [2020-09-25 01:49:03,187 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 215 transitions. Word has length 153 [2020-09-25 01:49:03,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:03,188 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 215 transitions. [2020-09-25 01:49:03,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:49:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 215 transitions. [2020-09-25 01:49:03,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:49:03,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:03,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:03,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:49:03,194 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:03,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:03,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2008587575, now seen corresponding path program 1 times [2020-09-25 01:49:03,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:03,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358189818] [2020-09-25 01:49:03,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:03,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:03,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:03,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:49:08,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4839 [2020-09-25 01:49:08,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:08,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:49:08,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:49:08,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,367 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:08,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:08,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 01:49:08,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:08,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:08,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:08,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:08,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:08,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:08,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:08,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:08,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:08,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:49:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:08,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:08,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:49:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:08,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:08,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:08,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:08,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:49:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:08,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:08,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:08,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:08,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:08,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:08,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:08,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:08,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:08,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:08,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358189818] [2020-09-25 01:49:08,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:08,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:49:08,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388276476] [2020-09-25 01:49:08,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:49:08,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:08,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:49:08,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:49:08,650 INFO L87 Difference]: Start difference. First operand 201 states and 215 transitions. Second operand 4 states. [2020-09-25 01:49:09,260 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:09,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:09,820 INFO L93 Difference]: Finished difference Result 282 states and 313 transitions. [2020-09-25 01:49:09,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:49:09,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:49:09,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:09,823 INFO L225 Difference]: With dead ends: 282 [2020-09-25 01:49:09,824 INFO L226 Difference]: Without dead ends: 221 [2020-09-25 01:49:09,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:49:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-25 01:49:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-25 01:49:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 01:49:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2020-09-25 01:49:09,863 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 154 [2020-09-25 01:49:09,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:09,864 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2020-09-25 01:49:09,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:49:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2020-09-25 01:49:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 01:49:09,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:09,872 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] [2020-09-25 01:49:09,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:49:09,873 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:09,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:09,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1539733420, now seen corresponding path program 1 times [2020-09-25 01:49:09,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:09,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319664437] [2020-09-25 01:49:09,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:09,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:10,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:12,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:12,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 01:49:12,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:49:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2609 [2020-09-25 01:49:12,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 01:49:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 01:49:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:12,808 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:12,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:12,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:13,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-09-25 01:49:13,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 01:49:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:13,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:13,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:13,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:13,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:13,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:13,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:13,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:13,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:13,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:13,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:13,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:13,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:13,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 01:49:13,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:13,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:13,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:13,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:13,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:13,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:13,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:13,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:13,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:13,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:49:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:13,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:13,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:13,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:13,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:13,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:13,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:13,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:49:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:13,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:13,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:13,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:13,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:13,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:13,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:49:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:13,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:13,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:13,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:13,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:13,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:13,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:13,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:13,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319664437] [2020-09-25 01:49:13,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:13,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:49:13,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53073445] [2020-09-25 01:49:13,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:49:13,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:13,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:49:13,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:49:13,210 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 4 states. [2020-09-25 01:49:13,833 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:49:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:14,481 INFO L93 Difference]: Finished difference Result 302 states and 338 transitions. [2020-09-25 01:49:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:49:14,482 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 01:49:14,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:14,490 INFO L225 Difference]: With dead ends: 302 [2020-09-25 01:49:14,490 INFO L226 Difference]: Without dead ends: 221 [2020-09-25 01:49:14,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:49:14,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-25 01:49:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-25 01:49:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 01:49:14,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 201 transitions. [2020-09-25 01:49:14,538 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 201 transitions. Word has length 163 [2020-09-25 01:49:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:14,539 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 201 transitions. [2020-09-25 01:49:14,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:49:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 201 transitions. [2020-09-25 01:49:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 01:49:14,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:14,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:14,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:49:14,545 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:14,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:14,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1213081293, now seen corresponding path program 1 times [2020-09-25 01:49:14,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:14,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337823486] [2020-09-25 01:49:14,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:14,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:16,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 01:49:16,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-09-25 01:49:16,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:49:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 01:49:16,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 01:49:16,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:16,546 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:49:16,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:16,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:16,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:16,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:49:16,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:16,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 01:49:16,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:16,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:16,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 01:49:16,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:16,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:49:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:16,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:16,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:16,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:16,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:16,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:16,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:16,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:49:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:16,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:16,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:16,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:49:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:16,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:16,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:16,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:16,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:16,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:49:16,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:16,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:16,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:16,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:16,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:49:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:16,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:16,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:16,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:16,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:16,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:49:16,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:16,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:16,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:16,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:16,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:16,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 01:49:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:16,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:16,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:16,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:16,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:16,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:16,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:49:16,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:16,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:49:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:16,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:17,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:17,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:17,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:17,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:49:17,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:49:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:17,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:17,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:49:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:17,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:17,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:17,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:17,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:17,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:49:17,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:49:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:17,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:17,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:17,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 01:49:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:17,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:17,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:17,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:17,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:17,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:17,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:17,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:17,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:17,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:49:17,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337823486] [2020-09-25 01:49:17,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:17,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:49:17,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399035111] [2020-09-25 01:49:17,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:49:17,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:17,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:49:17,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:49:17,148 INFO L87 Difference]: Start difference. First operand 191 states and 201 transitions. Second operand 8 states. [2020-09-25 01:49:17,685 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:49:18,826 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:19,156 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:49:19,472 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:19,754 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:49:20,064 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:49:20,358 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:20,650 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:49:21,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:49:21,063 INFO L93 Difference]: Finished difference Result 374 states and 427 transitions. [2020-09-25 01:49:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:49:21,064 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-25 01:49:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:49:21,067 INFO L225 Difference]: With dead ends: 374 [2020-09-25 01:49:21,067 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 01:49:21,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:49:21,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 01:49:21,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 265. [2020-09-25 01:49:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-25 01:49:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-09-25 01:49:21,109 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 166 [2020-09-25 01:49:21,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:49:21,109 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-09-25 01:49:21,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:49:21,110 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-09-25 01:49:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 01:49:21,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:49:21,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:49:21,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:49:21,113 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:49:21,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:49:21,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-25 01:49:21,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:49:21,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907895960] [2020-09-25 01:49:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:49:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:49:21,173 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:49:21,173 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:49:21,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:49:21,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:49:21 BoogieIcfgContainer [2020-09-25 01:49:21,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:49:21,206 INFO L168 Benchmark]: Toolchain (without parser) took 26578.35 ms. Allocated memory was 147.8 MB in the beginning and 558.4 MB in the end (delta: 410.5 MB). Free memory was 101.6 MB in the beginning and 259.0 MB in the end (delta: -157.4 MB). Peak memory consumption was 253.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:21,207 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 01:49:21,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.91 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 175.4 MB in the end (delta: -74.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:21,209 INFO L168 Benchmark]: Boogie Preprocessor took 91.93 ms. Allocated memory is still 205.0 MB. Free memory was 175.4 MB in the beginning and 171.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:21,210 INFO L168 Benchmark]: RCFGBuilder took 1192.14 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 171.5 MB in the beginning and 182.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:21,211 INFO L168 Benchmark]: TraceAbstraction took 24641.38 ms. Allocated memory was 235.4 MB in the beginning and 558.4 MB in the end (delta: 323.0 MB). Free memory was 182.8 MB in the beginning and 259.0 MB in the end (delta: -76.2 MB). Peak memory consumption was 246.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:49:21,215 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 644.91 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 175.4 MB in the end (delta: -74.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.93 ms. Allocated memory is still 205.0 MB. Free memory was 175.4 MB in the beginning and 171.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1192.14 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 171.5 MB in the beginning and 182.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24641.38 ms. Allocated memory was 235.4 MB in the beginning and 558.4 MB in the end (delta: 323.0 MB). Free memory was 182.8 MB in the beginning and 259.0 MB in the end (delta: -76.2 MB). Peak memory consumption was 246.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 739 SDtfs, 586 SDslu, 682 SDs, 0 SdLazy, 1282 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 125 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 248998 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...