/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:49:43,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:49:43,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:49:43,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:49:43,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:49:43,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:49:43,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:49:43,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:49:43,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:49:43,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:49:43,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:49:43,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:49:43,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:49:43,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:49:43,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:49:43,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:49:43,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:49:43,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:49:43,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:49:43,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:49:43,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:49:43,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:49:43,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:49:43,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:49:43,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:49:43,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:49:43,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:49:43,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:49:43,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:49:43,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:49:43,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:49:43,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:49:43,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:49:43,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:49:43,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:49:43,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:49:43,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:49:43,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:49:43,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:49:43,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:49:43,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:49:43,714 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 09:49:43,755 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:49:43,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:49:43,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:49:43,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:49:43,757 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:49:43,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:49:43,758 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:49:43,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:49:43,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:49:43,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:49:43,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:49:43,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:49:43,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:49:43,759 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:49:43,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:49:43,760 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:49:43,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:49:43,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:49:43,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:49:43,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:49:43,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:49:43,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:49:43,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:49:43,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:49:43,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:49:43,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:49:43,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:49:43,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:49:43,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:49:43,763 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:49:44,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:49:44,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:49:44,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:49:44,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:49:44,261 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:49:44,262 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 09:49:44,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6539407f9/0984c7629678469797a8b71a242ffd21/FLAG87b58c4e6 [2020-09-25 09:49:44,977 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:49:44,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 09:49:44,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6539407f9/0984c7629678469797a8b71a242ffd21/FLAG87b58c4e6 [2020-09-25 09:49:45,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6539407f9/0984c7629678469797a8b71a242ffd21 [2020-09-25 09:49:45,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:49:45,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:49:45,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:49:45,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:49:45,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:49:45,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:45" (1/1) ... [2020-09-25 09:49:45,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:45, skipping insertion in model container [2020-09-25 09:49:45,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:45" (1/1) ... [2020-09-25 09:49:45,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:49:45,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:49:45,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:49:45,791 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:49:45,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:49:46,030 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:49:46,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46 WrapperNode [2020-09-25 09:49:46,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:49:46,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:49:46,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:49:46,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:49:46,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (1/1) ... [2020-09-25 09:49:46,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (1/1) ... [2020-09-25 09:49:46,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (1/1) ... [2020-09-25 09:49:46,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (1/1) ... [2020-09-25 09:49:46,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (1/1) ... [2020-09-25 09:49:46,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (1/1) ... [2020-09-25 09:49:46,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (1/1) ... [2020-09-25 09:49:46,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:49:46,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:49:46,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:49:46,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:49:46,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (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 09:49:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:49:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:49:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:49:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:49:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:49:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:49:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:49:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:49:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:49:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:49:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:49:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:49:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:49:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:49:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:49:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:49:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:49:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:49:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:49:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:49:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 09:49:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:49:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:49:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:49:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:49:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:49:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:49:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:49:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:49:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:49:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:49:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:49:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:49:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:49:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:49:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:49:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:49:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:49:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:49:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:49:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:49:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:49:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:49:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:49:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:49:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:49:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:49:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:49:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:49:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:49:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:49:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:49:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:49:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:49:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:49:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:49:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:49:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:49:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:49:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:49:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:49:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:49:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:49:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:49:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:49:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:49:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:49:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:49:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:49:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:49:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 09:49:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:49:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:49:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:49:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:49:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:49:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:49:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:49:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:49:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:49:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:49:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:49:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:49:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:49:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:49:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:49:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:49:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:49:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:49:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:49:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:49:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:49:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:49:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:49:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:49:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:49:47,467 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:49:47,467 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:49:47,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:47 BoogieIcfgContainer [2020-09-25 09:49:47,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:49:47,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:49:47,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:49:47,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:49:47,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:45" (1/3) ... [2020-09-25 09:49:47,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bdcef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:47, skipping insertion in model container [2020-09-25 09:49:47,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:46" (2/3) ... [2020-09-25 09:49:47,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bdcef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:47, skipping insertion in model container [2020-09-25 09:49:47,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:47" (3/3) ... [2020-09-25 09:49:47,485 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-25 09:49:47,498 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:49:47,510 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:49:47,532 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:49:47,566 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:49:47,566 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:49:47,566 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:49:47,566 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:49:47,566 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:49:47,567 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:49:47,567 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:49:47,567 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:49:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-25 09:49:47,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:49:47,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:47,617 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 09:49:47,617 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:47,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:47,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-09-25 09:49:47,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:47,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036199255] [2020-09-25 09:49:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:48,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:48,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:53,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:53,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:49:53,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:49:53,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 09:49:53,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:53,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:49:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:49:53,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 09:49:53,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 09:49:53,607 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:49:53,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:49:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:53,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:53,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:53,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:49:53,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 09:49:53,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:53,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:53,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:49:53,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:54,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:49:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:54,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:54,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:54,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:54,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:49:54,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:54,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:54,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:54,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:49:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:54,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:54,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:54,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:54,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:54,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:54,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:54,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:54,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:54,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:54,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:49:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:54,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:54,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:54,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:54,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:54,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:49:54,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:54,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:54,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:54,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:54,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:54,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 23 [2020-09-25 09:49:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:49:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:54,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:54,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:54,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:54,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:54,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:54,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:54,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:54,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:54,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:54,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:54,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:54,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:49:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:54,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:54,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:54,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:54,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:54,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:49:54,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:54,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:54,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:54,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:49:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:54,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:54,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:54,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:54,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:54,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:49:54,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:54,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:49:54,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:54,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:54,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:54,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:49:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:54,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:54,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:54,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:54,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:54,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:54,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:54,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:54,280 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 09:49:54,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036199255] [2020-09-25 09:49:54,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:49:54,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:49:54,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485734787] [2020-09-25 09:49:54,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:49:54,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:49:54,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:49:54,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:49:54,313 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 8 states. [2020-09-25 09:49:54,924 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:56,793 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:57,195 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:49:57,601 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:58,008 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:58,346 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:49:58,661 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:58,977 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:50:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:00,799 INFO L93 Difference]: Finished difference Result 715 states and 882 transitions. [2020-09-25 09:50:00,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:50:00,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:50:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:00,826 INFO L225 Difference]: With dead ends: 715 [2020-09-25 09:50:00,826 INFO L226 Difference]: Without dead ends: 495 [2020-09-25 09:50:00,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:50:00,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-25 09:50:01,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 444. [2020-09-25 09:50:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-25 09:50:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 506 transitions. [2020-09-25 09:50:01,046 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 506 transitions. Word has length 153 [2020-09-25 09:50:01,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:01,047 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 506 transitions. [2020-09-25 09:50:01,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:50:01,048 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 506 transitions. [2020-09-25 09:50:01,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 09:50:01,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:01,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:50:01,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:50:01,057 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:01,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:01,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1535639593, now seen corresponding path program 1 times [2020-09-25 09:50:01,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:01,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211397158] [2020-09-25 09:50:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 09:50:01,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-25 09:50:01,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:01,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 09:50:01,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:50:01,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,899 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:50:01,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:50:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:50:02,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 09:50:02,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:50:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:02,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 09:50:02,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:02,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:02,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:50:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:02,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:02,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:02,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:02,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:50:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:02,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:50:02,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:02,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:02,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:50:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:02,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:50:02,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:02,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:02,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:50:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:50:02,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:50:02,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:02,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:50:02,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:50:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:50:02,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:50:02,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:02,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:50:02,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:02,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 09:50:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:02,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:02,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:02,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:02,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:50:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:02,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:02,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:02,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:02,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 09:50:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:02,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:02,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:02,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:02,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:02,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:02,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:02,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:02,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:02,215 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 09:50:02,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211397158] [2020-09-25 09:50:02,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:50:02,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:50:02,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319622363] [2020-09-25 09:50:02,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:50:02,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:50:02,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:50:02,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:50:02,220 INFO L87 Difference]: Start difference. First operand 444 states and 506 transitions. Second operand 6 states. [2020-09-25 09:50:02,808 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:06,117 INFO L93 Difference]: Finished difference Result 1240 states and 1523 transitions. [2020-09-25 09:50:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:50:06,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 09:50:06,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:06,128 INFO L225 Difference]: With dead ends: 1240 [2020-09-25 09:50:06,128 INFO L226 Difference]: Without dead ends: 906 [2020-09-25 09:50:06,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:50:06,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-09-25 09:50:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 749. [2020-09-25 09:50:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-09-25 09:50:06,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 869 transitions. [2020-09-25 09:50:06,260 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 869 transitions. Word has length 172 [2020-09-25 09:50:06,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:06,261 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 869 transitions. [2020-09-25 09:50:06,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:50:06,262 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 869 transitions. [2020-09-25 09:50:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 09:50:06,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:06,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:50:06,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:50:06,268 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:06,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:06,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1849841415, now seen corresponding path program 1 times [2020-09-25 09:50:06,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:06,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782700024] [2020-09-25 09:50:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:07,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 09:50:11,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:50:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:50:11,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:50:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:50:11,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:50:11,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:11,610 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:50:11,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:50:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:11,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:50:11,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:11,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 09:50:11,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:11,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:11,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:50:11,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:11,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:50:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:11,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:11,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:11,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:50:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:50:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:11,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:11,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:11,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:11,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:11,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:11,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:50:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:11,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:11,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:11,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:50:11,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:50:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:11,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:50:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:11,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:11,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:11,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:11,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:11,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:11,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:50:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:11,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:50:11,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:50:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:11,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:50:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:11,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 09:50:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:11,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:50:12,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:50:12,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:50:12,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:50:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:50:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:50:12,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:50:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:50:12,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:50:12,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:50:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:50:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:50:12,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:50:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:12,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:50:12,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 09:50:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:12,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:12,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:12,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:12,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:12,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:12,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:50:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:12,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:12,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:12,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:12,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 09:50:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:12,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:12,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:12,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:12,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:12,094 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 09:50:12,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782700024] [2020-09-25 09:50:12,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:50:12,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:50:12,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936750004] [2020-09-25 09:50:12,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:50:12,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:50:12,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:50:12,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:50:12,097 INFO L87 Difference]: Start difference. First operand 749 states and 869 transitions. Second operand 7 states. [2020-09-25 09:50:12,650 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:14,622 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:50:16,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:16,880 INFO L93 Difference]: Finished difference Result 2078 states and 2669 transitions. [2020-09-25 09:50:16,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:50:16,881 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 09:50:16,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:16,892 INFO L225 Difference]: With dead ends: 2078 [2020-09-25 09:50:16,893 INFO L226 Difference]: Without dead ends: 1439 [2020-09-25 09:50:16,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:50:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2020-09-25 09:50:17,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1209. [2020-09-25 09:50:17,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-09-25 09:50:17,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1415 transitions. [2020-09-25 09:50:17,064 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1415 transitions. Word has length 172 [2020-09-25 09:50:17,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:17,065 INFO L479 AbstractCegarLoop]: Abstraction has 1209 states and 1415 transitions. [2020-09-25 09:50:17,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:50:17,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1415 transitions. [2020-09-25 09:50:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 09:50:17,068 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:17,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:50:17,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:50:17,069 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:17,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-09-25 09:50:17,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:17,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758478710] [2020-09-25 09:50:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:50:17,137 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:50:17,138 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:50:17,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:50:17,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:50:17 BoogieIcfgContainer [2020-09-25 09:50:17,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:50:17,182 INFO L168 Benchmark]: Toolchain (without parser) took 31917.42 ms. Allocated memory was 140.0 MB in the beginning and 583.5 MB in the end (delta: 443.5 MB). Free memory was 102.0 MB in the beginning and 94.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 451.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:17,183 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-25 09:50:17,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.67 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 172.6 MB in the end (delta: -71.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:17,188 INFO L168 Benchmark]: Boogie Preprocessor took 106.30 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:17,189 INFO L168 Benchmark]: RCFGBuilder took 1335.18 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 167.7 MB in the beginning and 176.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:17,193 INFO L168 Benchmark]: TraceAbstraction took 29698.07 ms. Allocated memory was 237.5 MB in the beginning and 583.5 MB in the end (delta: 346.0 MB). Free memory was 174.9 MB in the beginning and 94.6 MB in the end (delta: 80.3 MB). Peak memory consumption was 426.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:17,199 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.67 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.2 MB in the beginning and 172.6 MB in the end (delta: -71.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.30 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1335.18 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 167.7 MB in the beginning and 176.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29698.07 ms. Allocated memory was 237.5 MB in the beginning and 583.5 MB in the end (delta: 346.0 MB). Free memory was 174.9 MB in the beginning and 94.6 MB in the end (delta: 80.3 MB). Peak memory consumption was 426.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 1948 SDslu, 1265 SDs, 0 SdLazy, 3016 SolverSat, 764 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1209occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 205827 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...