/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:51:05,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:51:05,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:51:05,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:51:05,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:51:05,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:51:05,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:51:05,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:51:05,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:51:05,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:51:05,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:51:05,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:51:05,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:51:05,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:51:05,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:51:05,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:51:05,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:51:05,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:51:05,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:51:05,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:51:05,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:51:05,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:51:05,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:51:05,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:51:05,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:51:05,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:51:05,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:51:05,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:51:05,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:51:05,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:51:05,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:51:05,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:51:05,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:51:05,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:51:05,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:51:05,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:51:05,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:51:05,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:51:05,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:51:05,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:51:05,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:51:05,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:51:05,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:51:05,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:51:05,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:51:05,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:51:05,944 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:51:05,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:51:05,945 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:51:05,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:51:05,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:51:05,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:51:05,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:51:05,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:51:05,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:51:05,947 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:51:05,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:51:05,948 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:51:05,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:51:05,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:51:05,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:51:05,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:51:05,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:51:05,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:51:05,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:51:05,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:51:05,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:51:05,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:51:05,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:51:05,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:51:05,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:51:05,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:51:06,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:51:06,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:51:06,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:51:06,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:51:06,437 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:51:06,438 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-25 01:51:06,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1dd4d0926/5a65c99697a44722abf853c03b9a422b/FLAG03b633d52 [2020-09-25 01:51:07,203 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:51:07,204 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-25 01:51:07,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1dd4d0926/5a65c99697a44722abf853c03b9a422b/FLAG03b633d52 [2020-09-25 01:51:07,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1dd4d0926/5a65c99697a44722abf853c03b9a422b [2020-09-25 01:51:07,442 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:51:07,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:51:07,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:51:07,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:51:07,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:51:07,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:51:07" (1/1) ... [2020-09-25 01:51:07,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:07, skipping insertion in model container [2020-09-25 01:51:07,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:51:07" (1/1) ... [2020-09-25 01:51:07,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:51:07,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:51:08,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:51:08,127 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:51:08,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:51:08,278 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:51:08,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08 WrapperNode [2020-09-25 01:51:08,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:51:08,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:51:08,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:51:08,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:51:08,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... [2020-09-25 01:51:08,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... [2020-09-25 01:51:08,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... [2020-09-25 01:51:08,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... [2020-09-25 01:51:08,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... [2020-09-25 01:51:08,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... [2020-09-25 01:51:08,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... [2020-09-25 01:51:08,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:51:08,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:51:08,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:51:08,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:51:08,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:51:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:51:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:51:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:51:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:51:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:51:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:51:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:51:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:51:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:51:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:51:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:51:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:51:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:51:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:51:08,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:51:08,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:51:08,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:51:08,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:51:08,497 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:51:08,498 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:51:08,498 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:51:08,498 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:51:08,499 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:51:08,499 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:51:08,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:51:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:51:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:51:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:51:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:51:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:51:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:51:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:51:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:51:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:51:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:51:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:51:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:51:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:51:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:51:08,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:51:08,504 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:51:08,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:51:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:51:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:51:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:51:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:51:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:51:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:51:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:51:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:51:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:51:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:51:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:51:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:51:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:51:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:51:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:51:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:51:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:51:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:51:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:51:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:51:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:51:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:51:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:51:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:51:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:51:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:51:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:51:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:51:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:51:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:51:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:51:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:51:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:51:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:51:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:51:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:51:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:51:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:51:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:51:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:51:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:51:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:51:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:51:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:51:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:51:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:51:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:51:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:51:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:51:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:51:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:51:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:51:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:51:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:51:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:51:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:51:09,806 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:51:09,806 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:51:09,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:51:09 BoogieIcfgContainer [2020-09-25 01:51:09,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:51:09,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:51:09,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:51:09,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:51:09,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:51:07" (1/3) ... [2020-09-25 01:51:09,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94137a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:51:09, skipping insertion in model container [2020-09-25 01:51:09,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:51:08" (2/3) ... [2020-09-25 01:51:09,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e94137a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:51:09, skipping insertion in model container [2020-09-25 01:51:09,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:51:09" (3/3) ... [2020-09-25 01:51:09,829 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-09-25 01:51:09,842 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:51:09,856 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:51:09,881 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:51:09,931 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:51:09,931 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:51:09,932 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:51:09,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:51:09,933 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:51:09,934 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:51:09,934 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:51:09,934 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:51:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states. [2020-09-25 01:51:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:51:10,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:10,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:10,025 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:10,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:10,038 INFO L82 PathProgramCache]: Analyzing trace with hash 71377499, now seen corresponding path program 1 times [2020-09-25 01:51:10,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:10,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280712156] [2020-09-25 01:51:10,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:12,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:15,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:51:15,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:51:15,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:51:15,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:15,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:15,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:51:15,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:15,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 01:51:15,933 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:15,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:15,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:16,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 01:51:16,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:16,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:16,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:16,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:16,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:16,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:16,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:16,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:16,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:16,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 01:51:16,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:16,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:16,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:16,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:16,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:51:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:16,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:16,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:16,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:16,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:51:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:16,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:16,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:16,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:16,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:16,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:51:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:16,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:16,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:16,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:16,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:16,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:16,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:51:16,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280712156] [2020-09-25 01:51:16,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:16,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:51:16,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272475977] [2020-09-25 01:51:16,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:51:16,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:16,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:51:16,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:51:16,353 INFO L87 Difference]: Start difference. First operand 339 states. Second operand 3 states. [2020-09-25 01:51:17,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:17,896 INFO L93 Difference]: Finished difference Result 534 states and 633 transitions. [2020-09-25 01:51:17,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:51:17,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:51:17,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:17,920 INFO L225 Difference]: With dead ends: 534 [2020-09-25 01:51:17,920 INFO L226 Difference]: Without dead ends: 326 [2020-09-25 01:51:17,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:51:17,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-09-25 01:51:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 282. [2020-09-25 01:51:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 01:51:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 307 transitions. [2020-09-25 01:51:18,055 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 307 transitions. Word has length 153 [2020-09-25 01:51:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:18,057 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 307 transitions. [2020-09-25 01:51:18,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:51:18,058 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 307 transitions. [2020-09-25 01:51:18,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:51:18,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:18,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:18,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:51:18,072 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:18,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:18,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1758648365, now seen corresponding path program 1 times [2020-09-25 01:51:18,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:18,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635229644] [2020-09-25 01:51:18,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:18,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:18,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:20,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:51:23,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:51:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 01:51:23,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:51:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:51:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,540 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:23,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 01:51:23,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:23,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:23,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:23,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:23,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:23,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:23,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:51:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:23,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:23,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:51:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:51:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:23,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:23,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:23,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:23,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:23,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:23,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:51:23,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635229644] [2020-09-25 01:51:23,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:23,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:51:23,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118741094] [2020-09-25 01:51:23,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:51:23,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:23,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:51:23,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:51:23,784 INFO L87 Difference]: Start difference. First operand 282 states and 307 transitions. Second operand 4 states. [2020-09-25 01:51:24,476 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:25,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:25,626 INFO L93 Difference]: Finished difference Result 441 states and 496 transitions. [2020-09-25 01:51:25,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:51:25,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:51:25,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:25,631 INFO L225 Difference]: With dead ends: 441 [2020-09-25 01:51:25,631 INFO L226 Difference]: Without dead ends: 309 [2020-09-25 01:51:25,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:51:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-09-25 01:51:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 272. [2020-09-25 01:51:25,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-25 01:51:25,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 294 transitions. [2020-09-25 01:51:25,698 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 294 transitions. Word has length 154 [2020-09-25 01:51:25,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:25,700 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 294 transitions. [2020-09-25 01:51:25,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:51:25,700 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 294 transitions. [2020-09-25 01:51:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 01:51:25,703 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:25,703 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] [2020-09-25 01:51:25,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:51:25,703 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:25,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:25,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1306567739, now seen corresponding path program 1 times [2020-09-25 01:51:25,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:25,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035359466] [2020-09-25 01:51:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:25,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:28,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:28,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 01:51:28,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:51:28,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2955 [2020-09-25 01:51:28,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:51:28,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:51:28,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,009 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:29,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:29,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 01:51:29,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:29,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:51:29,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:29,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:29,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:51:29,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:29,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:29,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:29,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:51:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:51:29,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:29,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:51:29,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:51:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:29,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 01:51:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 01:51:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:29,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:29,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:29,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:29,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:29,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:29,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:29,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:51:29,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035359466] [2020-09-25 01:51:29,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:29,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:51:29,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771007753] [2020-09-25 01:51:29,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:51:29,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:29,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:51:29,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:51:29,251 INFO L87 Difference]: Start difference. First operand 272 states and 294 transitions. Second operand 5 states. [2020-09-25 01:51:29,856 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:51:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:31,891 INFO L93 Difference]: Finished difference Result 666 states and 769 transitions. [2020-09-25 01:51:31,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:51:31,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 01:51:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:31,901 INFO L225 Difference]: With dead ends: 666 [2020-09-25 01:51:31,901 INFO L226 Difference]: Without dead ends: 504 [2020-09-25 01:51:31,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:51:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-25 01:51:31,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 424. [2020-09-25 01:51:31,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-25 01:51:31,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 469 transitions. [2020-09-25 01:51:31,971 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 469 transitions. Word has length 167 [2020-09-25 01:51:31,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:31,972 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 469 transitions. [2020-09-25 01:51:31,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:51:31,972 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 469 transitions. [2020-09-25 01:51:31,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 01:51:31,975 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:31,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:31,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:51:31,976 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:31,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:31,976 INFO L82 PathProgramCache]: Analyzing trace with hash 189083004, now seen corresponding path program 1 times [2020-09-25 01:51:31,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:31,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228008234] [2020-09-25 01:51:31,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:32,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:33,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:33,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 01:51:33,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:33,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1767 [2020-09-25 01:51:33,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:33,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 01:51:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 01:51:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 01:51:33,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:34,385 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:34,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 01:51:34,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 01:51:34,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:34,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:34,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:51:34,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:34,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:34,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:34,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:34,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:51:34,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:34,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:34,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:34,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:34,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:34,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:34,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:34,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:51:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:51:34,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:51:34,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:51:34,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:34,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 01:51:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:34,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:51:34,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:34,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:34,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 01:51:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:34,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:34,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:34,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:34,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:34,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:51:34,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:51:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:34,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:34,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:35,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 01:51:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:35,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:35,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:35,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:35,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:35,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:35,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:51:35,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228008234] [2020-09-25 01:51:35,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:35,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:51:35,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095071372] [2020-09-25 01:51:35,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:51:35,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:35,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:51:35,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:51:35,089 INFO L87 Difference]: Start difference. First operand 424 states and 469 transitions. Second operand 10 states. [2020-09-25 01:51:35,715 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:51:37,919 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:51:38,559 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-25 01:51:38,942 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:51:39,337 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:51:39,702 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:51:40,010 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:51:40,334 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:51:40,847 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:51:41,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:41,887 INFO L93 Difference]: Finished difference Result 1150 states and 1410 transitions. [2020-09-25 01:51:41,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 01:51:41,888 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 01:51:41,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:41,894 INFO L225 Difference]: With dead ends: 1150 [2020-09-25 01:51:41,895 INFO L226 Difference]: Without dead ends: 836 [2020-09-25 01:51:41,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 01:51:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-25 01:51:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 709. [2020-09-25 01:51:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2020-09-25 01:51:42,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 808 transitions. [2020-09-25 01:51:42,032 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 808 transitions. Word has length 172 [2020-09-25 01:51:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:42,032 INFO L479 AbstractCegarLoop]: Abstraction has 709 states and 808 transitions. [2020-09-25 01:51:42,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:51:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 808 transitions. [2020-09-25 01:51:42,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 01:51:42,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:42,038 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 01:51:42,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:51:42,038 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:42,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:42,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1049977612, now seen corresponding path program 1 times [2020-09-25 01:51:42,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:42,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060075808] [2020-09-25 01:51:42,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:51:42,106 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:51:42,107 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:51:42,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:51:42,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:51:42 BoogieIcfgContainer [2020-09-25 01:51:42,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:51:42,146 INFO L168 Benchmark]: Toolchain (without parser) took 34702.13 ms. Allocated memory was 140.0 MB in the beginning and 645.9 MB in the end (delta: 505.9 MB). Free memory was 100.8 MB in the beginning and 567.6 MB in the end (delta: -466.8 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:42,147 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 01:51:42,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 829.20 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.1 MB in the beginning and 174.0 MB in the end (delta: -73.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:42,149 INFO L168 Benchmark]: Boogie Preprocessor took 105.33 ms. Allocated memory is still 204.5 MB. Free memory was 174.0 MB in the beginning and 169.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:42,149 INFO L168 Benchmark]: RCFGBuilder took 1429.18 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.3 MB in the beginning and 174.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:42,150 INFO L168 Benchmark]: TraceAbstraction took 32327.27 ms. Allocated memory was 237.0 MB in the beginning and 645.9 MB in the end (delta: 408.9 MB). Free memory was 174.5 MB in the beginning and 567.6 MB in the end (delta: -393.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:51:42,154 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 829.20 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 100.1 MB in the beginning and 174.0 MB in the end (delta: -73.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.33 ms. Allocated memory is still 204.5 MB. Free memory was 174.0 MB in the beginning and 169.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1429.18 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.3 MB in the beginning and 174.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32327.27 ms. Allocated memory was 237.0 MB in the beginning and 645.9 MB in the end (delta: 408.9 MB). Free memory was 174.5 MB in the beginning and 567.6 MB in the end (delta: -393.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) [L802] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L802] RET waterRise() [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L759] COND FALSE !(\read(pumpRunning)) [L766] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND FALSE !(\read(systemActive)) [L581] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L853] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1090 SDtfs, 1792 SDslu, 891 SDs, 0 SdLazy, 2375 SolverSat, 634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 288 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 257771 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...