/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=0.2 --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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:56:53,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:56:53,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:56:53,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:56:53,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:56:53,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:56:53,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:56:53,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:56:53,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:56:53,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:56:53,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:56:53,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:56:53,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:56:53,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:56:53,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:56:53,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:56:53,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:56:53,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:56:53,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:56:53,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:56:53,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:56:53,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:56:53,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:56:53,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:56:53,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:56:53,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:56:53,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:56:53,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:56:53,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:56:53,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:56:53,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:56:53,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:56:53,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:56:53,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:56:53,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:56:53,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:56:53,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:56:53,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:56:53,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:56:53,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:56:53,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:56:53,302 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 10:56:53,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:56:53,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:56:53,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:56:53,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:56:53,354 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:56:53,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:56:53,355 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:56:53,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:56:53,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:56:53,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:56:53,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:56:53,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:56:53,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:56:53,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:56:53,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:56:53,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:56:53,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:56:53,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:56:53,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:56:53,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:56:53,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:56:53,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:56:53,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:56:53,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:56:53,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:56:53,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:56:53,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:56:53,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:56:53,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:56:53,361 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 10:56:53,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:56:53,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:56:53,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:56:53,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:56:53,897 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:56:53,899 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-25 10:56:53,992 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/496f3ffeb/f3f78b6817ad45d2881b682b70666b81/FLAG0736fd48a [2020-09-25 10:56:54,638 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:56:54,639 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-09-25 10:56:54,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/496f3ffeb/f3f78b6817ad45d2881b682b70666b81/FLAG0736fd48a [2020-09-25 10:56:54,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/496f3ffeb/f3f78b6817ad45d2881b682b70666b81 [2020-09-25 10:56:54,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:56:54,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:56:54,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:56:54,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:56:54,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:56:54,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:54" (1/1) ... [2020-09-25 10:56:54,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:54, skipping insertion in model container [2020-09-25 10:56:54,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:54" (1/1) ... [2020-09-25 10:56:54,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:56:54,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:56:55,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:56:55,494 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:56:55,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:56:55,640 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:56:55,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55 WrapperNode [2020-09-25 10:56:55,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:56:55,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:56:55,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:56:55,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:56:55,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... [2020-09-25 10:56:55,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... [2020-09-25 10:56:55,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... [2020-09-25 10:56:55,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... [2020-09-25 10:56:55,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... [2020-09-25 10:56:55,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... [2020-09-25 10:56:55,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... [2020-09-25 10:56:55,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:56:55,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:56:55,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:56:55,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:56:55,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:56:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:56:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:56:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:56:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:56:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:56:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:56:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:56:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:56:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:56:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:56:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:56:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:56:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:56:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:56:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:56:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:56:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:56:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:56:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:56:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:56:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:56:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:56:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:56:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:56:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:56:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:56:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:56:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:56:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:56:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:56:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:56:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:56:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:56:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:56:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:56:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:56:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:56:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:56:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:56:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:56:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:56:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:56:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:56:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:56:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:56:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:56:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:56:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:56:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:56:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:56:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:56:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:56:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:56:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:56:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:56:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:56:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:56:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:56:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:56:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:56:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:56:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:56:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:56:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:56:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:56:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:56:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:56:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:56:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:56:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:56:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:56:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:56:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:56:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:56:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:56:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:56:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:56:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:56:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:56:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:56:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:56:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:56:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:56:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:56:57,035 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:56:57,035 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:56:57,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:57 BoogieIcfgContainer [2020-09-25 10:56:57,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:56:57,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:56:57,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:56:57,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:56:57,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:54" (1/3) ... [2020-09-25 10:56:57,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b30d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:57, skipping insertion in model container [2020-09-25 10:56:57,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:55" (2/3) ... [2020-09-25 10:56:57,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b30d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:57, skipping insertion in model container [2020-09-25 10:56:57,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:57" (3/3) ... [2020-09-25 10:56:57,052 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-09-25 10:56:57,064 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:56:57,076 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:56:57,098 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:56:57,132 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:56:57,133 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:56:57,133 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:56:57,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:56:57,133 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:56:57,133 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:56:57,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:56:57,134 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:56:57,164 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 10:56:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:56:57,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:57,185 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 10:56:57,185 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:57,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:57,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2007669194, now seen corresponding path program 1 times [2020-09-25 10:56:57,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:57,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210947345] [2020-09-25 10:56:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:57,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:57,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:59,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:02,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:02,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:57:02,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:57:02,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:57:02,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:02,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:57:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:57:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 10:57:02,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 31 [2020-09-25 10:57:03,080 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:03,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:03,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 10:57:03,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:57:03,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:03,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:57:03,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:03,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:03,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:03,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:03,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:57:03,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:03,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:03,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:03,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:03,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:57:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:03,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:03,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:57:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:57:03,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:57:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:03,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:03,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:57:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:03,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:03,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:03,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:03,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:03,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:03,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:03,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:03,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:03,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:03,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:03,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:03,655 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 10:57:03,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210947345] [2020-09-25 10:57:03,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:03,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:57:03,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865716313] [2020-09-25 10:57:03,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:57:03,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:03,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:57:03,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:57:03,691 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 8 states. [2020-09-25 10:57:04,312 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:06,091 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:06,461 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:06,898 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:07,291 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:07,616 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:08,170 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:08,511 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:09,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:09,697 INFO L93 Difference]: Finished difference Result 608 states and 761 transitions. [2020-09-25 10:57:09,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:57:09,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:57:09,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:09,727 INFO L225 Difference]: With dead ends: 608 [2020-09-25 10:57:09,727 INFO L226 Difference]: Without dead ends: 404 [2020-09-25 10:57:09,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:57:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-25 10:57:09,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 358. [2020-09-25 10:57:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-25 10:57:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 398 transitions. [2020-09-25 10:57:09,879 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 398 transitions. Word has length 153 [2020-09-25 10:57:09,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:09,882 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 398 transitions. [2020-09-25 10:57:09,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:57:09,883 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 398 transitions. [2020-09-25 10:57:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 10:57:09,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:09,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:57:09,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:57:09,899 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:09,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:09,899 INFO L82 PathProgramCache]: Analyzing trace with hash 239108759, now seen corresponding path program 1 times [2020-09-25 10:57:09,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:09,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378138158] [2020-09-25 10:57:09,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:10,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 10:57:11,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-09-25 10:57:11,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:57:11,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 10:57:11,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:57:11,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,512 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:11,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:11,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 10:57:11,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 10:57:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:11,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:11,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:11,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:11,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:11,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:11,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:11,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:11,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:11,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:11,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:11,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:11,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:11,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:57:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:11,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:57:11,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:11,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:57:11,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:57:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:11,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:11,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:11,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:11,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:11,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 10:57:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:11,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:11,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:11,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:11,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:11,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:11,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 10:57:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:11,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:11,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:11,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:11,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:11,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:11,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:12,024 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 10:57:12,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378138158] [2020-09-25 10:57:12,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:12,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:57:12,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389966917] [2020-09-25 10:57:12,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:57:12,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:12,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:57:12,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:57:12,030 INFO L87 Difference]: Start difference. First operand 358 states and 398 transitions. Second operand 5 states. [2020-09-25 10:57:12,590 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:14,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:14,671 INFO L93 Difference]: Finished difference Result 984 states and 1195 transitions. [2020-09-25 10:57:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:57:14,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 10:57:14,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:14,687 INFO L225 Difference]: With dead ends: 984 [2020-09-25 10:57:14,688 INFO L226 Difference]: Without dead ends: 736 [2020-09-25 10:57:14,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:57:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2020-09-25 10:57:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 585. [2020-09-25 10:57:14,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-25 10:57:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 662 transitions. [2020-09-25 10:57:14,813 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 662 transitions. Word has length 168 [2020-09-25 10:57:14,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:14,814 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 662 transitions. [2020-09-25 10:57:14,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:57:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 662 transitions. [2020-09-25 10:57:14,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 10:57:14,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:14,821 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] [2020-09-25 10:57:14,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:57:14,822 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:14,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:14,822 INFO L82 PathProgramCache]: Analyzing trace with hash 668825204, now seen corresponding path program 1 times [2020-09-25 10:57:14,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:14,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345100605] [2020-09-25 10:57:14,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:14,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:16,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:19,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:19,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 10:57:19,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:57:19,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 10:57:19,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:19,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:19,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:57:19,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 10:57:19,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 10:57:19,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,260 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:20,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:20,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-25 10:57:20,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:20,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:57:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:20,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:20,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:20,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:20,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:20,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:20,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:20,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:20,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:20,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:57:20,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:20,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:20,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:20,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:57:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:20,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:20,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:57:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:20,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 10:57:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:57:20,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:57:20,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:57:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:57:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:57:20,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:20,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:57:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:20,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:20,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:20,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 10:57:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:20,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:20,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 10:57:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:20,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:20,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 10:57:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:20,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:20,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:20,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:20,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:20,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:20,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:20,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:20,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:20,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:20,802 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 10:57:20,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345100605] [2020-09-25 10:57:20,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:20,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:57:20,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098145590] [2020-09-25 10:57:20,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:57:20,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:20,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:57:20,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:57:20,809 INFO L87 Difference]: Start difference. First operand 585 states and 662 transitions. Second operand 7 states. [2020-09-25 10:57:21,367 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:57:23,161 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:24,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:24,420 INFO L93 Difference]: Finished difference Result 1815 states and 2243 transitions. [2020-09-25 10:57:24,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:57:24,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-09-25 10:57:24,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:24,433 INFO L225 Difference]: With dead ends: 1815 [2020-09-25 10:57:24,433 INFO L226 Difference]: Without dead ends: 1340 [2020-09-25 10:57:24,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:57:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2020-09-25 10:57:24,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1065. [2020-09-25 10:57:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-09-25 10:57:24,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1221 transitions. [2020-09-25 10:57:24,607 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1221 transitions. Word has length 176 [2020-09-25 10:57:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:24,609 INFO L479 AbstractCegarLoop]: Abstraction has 1065 states and 1221 transitions. [2020-09-25 10:57:24,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:57:24,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1221 transitions. [2020-09-25 10:57:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 10:57:24,615 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:24,615 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 10:57:24,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:57:24,616 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:24,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:24,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1199080031, now seen corresponding path program 1 times [2020-09-25 10:57:24,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:24,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815111838] [2020-09-25 10:57:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:57:24,689 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:57:24,690 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:57:24,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:57:24,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:57:24 BoogieIcfgContainer [2020-09-25 10:57:24,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:57:24,735 INFO L168 Benchmark]: Toolchain (without parser) took 29860.26 ms. Allocated memory was 139.5 MB in the beginning and 597.2 MB in the end (delta: 457.7 MB). Free memory was 101.5 MB in the beginning and 197.5 MB in the end (delta: -96.0 MB). Peak memory consumption was 361.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:24,736 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:57:24,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.52 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 172.8 MB in the end (delta: -71.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:24,739 INFO L168 Benchmark]: Boogie Preprocessor took 102.15 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:24,746 INFO L168 Benchmark]: RCFGBuilder took 1298.66 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 168.7 MB in the beginning and 178.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:24,746 INFO L168 Benchmark]: TraceAbstraction took 27688.44 ms. Allocated memory was 235.9 MB in the beginning and 597.2 MB in the end (delta: 361.2 MB). Free memory was 178.8 MB in the beginning and 197.5 MB in the end (delta: -18.7 MB). Peak memory consumption was 342.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:24,759 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.52 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 172.8 MB in the end (delta: -71.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.15 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 168.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1298.66 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 168.7 MB in the beginning and 178.8 MB in the end (delta: -10.1 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27688.44 ms. Allocated memory was 235.9 MB in the beginning and 597.2 MB in the end (delta: 361.2 MB). Free memory was 178.8 MB in the beginning and 197.5 MB in the end (delta: -18.7 MB). Peak memory consumption was 342.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 778 SDtfs, 1486 SDslu, 1069 SDs, 0 SdLazy, 2425 SolverSat, 493 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred 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, 472 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 253504 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...