/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:48:04,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:48:04,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:48:04,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:48:04,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:48:04,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:48:04,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:48:04,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:48:04,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:48:04,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:48:04,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:48:04,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:48:04,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:48:04,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:48:04,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:48:04,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:48:04,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:48:04,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:48:04,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:48:04,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:48:04,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:48:04,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:48:04,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:48:04,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:48:04,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:48:04,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:48:04,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:48:04,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:48:04,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:48:04,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:48:04,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:48:04,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:48:04,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:48:04,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:48:04,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:48:04,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:48:04,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:48:04,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:48:04,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:48:04,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:48:04,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:48:04,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:48:04,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:48:04,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:48:04,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:48:04,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:48:04,417 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:48:04,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:48:04,418 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:48:04,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:48:04,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:48:04,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:48:04,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:48:04,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:48:04,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:48:04,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:48:04,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:48:04,421 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:48:04,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:48:04,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:48:04,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:48:04,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:48:04,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:48:04,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:48:04,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:48:04,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:48:04,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:48:04,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:48:04,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:48:04,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:48:04,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:48:04,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:48:04,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:48:04,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:48:04,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:48:04,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:48:04,897 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:48:04,898 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 09:48:04,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d8232863/bfa0a1fab1cc458c9cb05c3b0b679e24/FLAG544ad18a7 [2020-09-25 09:48:05,598 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:48:05,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-25 09:48:05,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d8232863/bfa0a1fab1cc458c9cb05c3b0b679e24/FLAG544ad18a7 [2020-09-25 09:48:05,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d8232863/bfa0a1fab1cc458c9cb05c3b0b679e24 [2020-09-25 09:48:05,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:48:05,901 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:48:05,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:05,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:48:05,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:48:05,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:05" (1/1) ... [2020-09-25 09:48:05,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:05, skipping insertion in model container [2020-09-25 09:48:05,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:05" (1/1) ... [2020-09-25 09:48:05,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:48:05,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:48:06,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:06,351 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:48:06,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:06,555 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:48:06,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06 WrapperNode [2020-09-25 09:48:06,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:06,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:48:06,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:48:06,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:48:06,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... [2020-09-25 09:48:06,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... [2020-09-25 09:48:06,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... [2020-09-25 09:48:06,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... [2020-09-25 09:48:06,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... [2020-09-25 09:48:06,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... [2020-09-25 09:48:06,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... [2020-09-25 09:48:06,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:48:06,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:48:06,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:48:06,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:48:06,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:48:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:48:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:48:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:48:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:48:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:48:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:48:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:48:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:48:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:48:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:48:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:48:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:48:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:48:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:48:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:48:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:48:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:48:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:48:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:48:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:48:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:48:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:48:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:48:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:48:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:48:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:48:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:48:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:48:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:48:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:48:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:48:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:48:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:48:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:48:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:48:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:48:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:48:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:48:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:48:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:48:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:48:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:48:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:48:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:48:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:48:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:48:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:48:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:48:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:48:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:48:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:48:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:48:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:48:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:48:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:48:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:48:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:48:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:48:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:48:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:48:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:48:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:48:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:48:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:48:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:48:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:48:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:48:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:48:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:48:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:48:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:48:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:48:07,994 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:48:07,994 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:48:08,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:08 BoogieIcfgContainer [2020-09-25 09:48:08,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:48:08,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:48:08,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:48:08,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:48:08,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:48:05" (1/3) ... [2020-09-25 09:48:08,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beda330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:08, skipping insertion in model container [2020-09-25 09:48:08,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:06" (2/3) ... [2020-09-25 09:48:08,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beda330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:08, skipping insertion in model container [2020-09-25 09:48:08,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:08" (3/3) ... [2020-09-25 09:48:08,019 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-25 09:48:08,031 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:48:08,042 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:48:08,061 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:48:08,090 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:48:08,090 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:48:08,091 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:48:08,091 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:48:08,091 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:48:08,091 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:48:08,091 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:48:08,091 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:48:08,120 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-25 09:48:08,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:48:08,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:08,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:08,140 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:08,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-25 09:48:08,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:08,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865091552] [2020-09-25 09:48:08,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:08,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:08,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:09,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:12,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:12,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:48:12,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:48:12,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4193 [2020-09-25 09:48:12,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:12,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:12,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:48:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:48:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 09:48:12,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 09:48:13,239 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:13,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 09:48:13,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:13,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:13,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:48:13,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 09:48:13,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:13,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:48:13,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:13,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:13,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:13,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:13,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:13,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:13,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:13,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:13,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:48:13,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:13,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:13,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:13,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:13,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:13,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:13,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:13,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:13,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:13,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:48:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:13,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:48:13,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:13,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:13,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:48:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:13,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 09:48:13,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:13,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:13,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:13,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:48:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:13,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:13,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:13,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:13,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:13,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:13,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:13,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:14,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865091552] [2020-09-25 09:48:14,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:14,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:48:14,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313696188] [2020-09-25 09:48:14,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:48:14,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:14,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:48:14,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:48:14,038 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 8 states. [2020-09-25 09:48:14,747 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:16,028 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:16,323 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:16,673 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:17,025 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:17,344 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:17,667 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:18,001 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:18,902 INFO L93 Difference]: Finished difference Result 453 states and 557 transitions. [2020-09-25 09:48:18,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:48:18,907 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:48:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:18,936 INFO L225 Difference]: With dead ends: 453 [2020-09-25 09:48:18,936 INFO L226 Difference]: Without dead ends: 314 [2020-09-25 09:48:18,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:48:18,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-25 09:48:19,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 282. [2020-09-25 09:48:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-25 09:48:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 317 transitions. [2020-09-25 09:48:19,076 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 317 transitions. Word has length 153 [2020-09-25 09:48:19,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:19,080 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 317 transitions. [2020-09-25 09:48:19,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:48:19,080 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 317 transitions. [2020-09-25 09:48:19,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 09:48:19,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:19,093 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] [2020-09-25 09:48:19,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:48:19,094 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:19,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:19,094 INFO L82 PathProgramCache]: Analyzing trace with hash -777322396, now seen corresponding path program 1 times [2020-09-25 09:48:19,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:19,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484679482] [2020-09-25 09:48:19,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:19,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:19,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:19,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:20,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:21,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 09:48:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:48:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 09:48:24,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 09:48:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:48:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 09:48:24,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,469 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:24,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:24,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 09:48:24,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:24,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:48:24,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:24,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:24,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:24,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:24,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:24,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:24,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:24,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:24,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:24,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:24,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:24,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:24,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:48:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:24,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:48:24,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:24,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:48:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:48:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 09:48:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:24,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:24,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:24,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:24,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:48:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:24,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:24,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:48:24,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:24,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:24,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:24,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:24,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:24,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:48:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:24,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:24,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:24,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:24,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:25,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:25,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:25,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:25,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:25,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484679482] [2020-09-25 09:48:25,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:25,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 09:48:25,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208224353] [2020-09-25 09:48:25,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 09:48:25,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:25,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 09:48:25,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 09:48:25,057 INFO L87 Difference]: Start difference. First operand 282 states and 317 transitions. Second operand 12 states. [2020-09-25 09:48:25,542 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:26,375 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:27,407 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:48:28,040 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:48:28,468 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:29,102 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 09:48:29,423 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:48:30,049 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 09:48:30,367 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:30,762 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:31,096 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:48:31,403 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:31,766 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:48:32,134 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:48:32,501 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:33,108 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-09-25 09:48:34,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:34,232 INFO L93 Difference]: Finished difference Result 513 states and 624 transitions. [2020-09-25 09:48:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 09:48:34,233 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2020-09-25 09:48:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:34,238 INFO L225 Difference]: With dead ends: 513 [2020-09-25 09:48:34,238 INFO L226 Difference]: Without dead ends: 386 [2020-09-25 09:48:34,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2020-09-25 09:48:34,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-09-25 09:48:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 336. [2020-09-25 09:48:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 09:48:34,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 371 transitions. [2020-09-25 09:48:34,295 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 371 transitions. Word has length 159 [2020-09-25 09:48:34,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:34,295 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 371 transitions. [2020-09-25 09:48:34,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 09:48:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 371 transitions. [2020-09-25 09:48:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 09:48:34,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:34,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:34,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:48:34,299 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:34,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1502590393, now seen corresponding path program 1 times [2020-09-25 09:48:34,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:34,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150003127] [2020-09-25 09:48:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:34,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:34,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:34,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 09:48:34,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:34,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 09:48:34,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:34,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:48:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:48:34,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:34,962 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:34,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:35,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 09:48:35,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:35,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:35,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:48:35,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:35,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:35,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:35,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:35,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:48:35,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:35,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:35,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:35,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:35,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:35,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:48:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:35,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:35,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:48:35,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:35,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:35,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:35,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:48:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:35,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 09:48:35,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:35,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:35,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:48:35,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:35,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:48:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:35,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:35,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:35,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:35,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:35,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 09:48:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:35,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:35,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:35,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:35,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:35,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 09:48:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:35,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:35,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:35,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:35,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:35,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:35,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:35,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150003127] [2020-09-25 09:48:35,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:35,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:48:35,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056225214] [2020-09-25 09:48:35,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:48:35,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:35,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:48:35,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:48:35,532 INFO L87 Difference]: Start difference. First operand 336 states and 371 transitions. Second operand 5 states. [2020-09-25 09:48:35,987 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:36,739 INFO L93 Difference]: Finished difference Result 597 states and 693 transitions. [2020-09-25 09:48:36,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:48:36,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 09:48:36,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:36,743 INFO L225 Difference]: With dead ends: 597 [2020-09-25 09:48:36,744 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 09:48:36,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:48:36,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 09:48:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 336. [2020-09-25 09:48:36,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 09:48:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 367 transitions. [2020-09-25 09:48:36,787 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 367 transitions. Word has length 168 [2020-09-25 09:48:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:36,788 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 367 transitions. [2020-09-25 09:48:36,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:48:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 367 transitions. [2020-09-25 09:48:36,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 09:48:36,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:36,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:36,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:48:36,792 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:36,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:36,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-25 09:48:36,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:36,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613870604] [2020-09-25 09:48:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:48:36,859 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:48:36,860 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:48:36,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:48:36,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:48:36 BoogieIcfgContainer [2020-09-25 09:48:36,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:48:36,896 INFO L168 Benchmark]: Toolchain (without parser) took 30999.12 ms. Allocated memory was 140.0 MB in the beginning and 583.0 MB in the end (delta: 443.0 MB). Free memory was 102.2 MB in the beginning and 208.2 MB in the end (delta: -106.0 MB). Peak memory consumption was 337.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:36,897 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 09:48:36,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.82 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 175.8 MB in the end (delta: -74.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:36,900 INFO L168 Benchmark]: Boogie Preprocessor took 113.24 ms. Allocated memory is still 204.5 MB. Free memory was 175.8 MB in the beginning and 171.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:36,900 INFO L168 Benchmark]: RCFGBuilder took 1337.06 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 171.7 MB in the beginning and 185.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:36,901 INFO L168 Benchmark]: TraceAbstraction took 28885.36 ms. Allocated memory was 237.0 MB in the beginning and 583.0 MB in the end (delta: 346.0 MB). Free memory was 184.5 MB in the beginning and 208.2 MB in the end (delta: -23.7 MB). Peak memory consumption was 322.3 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:36,905 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 654.82 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 175.8 MB in the end (delta: -74.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.24 ms. Allocated memory is still 204.5 MB. Free memory was 175.8 MB in the beginning and 171.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1337.06 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 171.7 MB in the beginning and 185.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28885.36 ms. Allocated memory was 237.0 MB in the beginning and 583.0 MB in the end (delta: 346.0 MB). Free memory was 184.5 MB in the beginning and 208.2 MB in the end (delta: -23.7 MB). Peak memory consumption was 322.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 661 SDtfs, 1047 SDslu, 1491 SDs, 0 SdLazy, 2550 SolverSat, 306 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=336occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 117 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 651 NumberOfCodeBlocks, 651 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 213720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...