/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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:11:15,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:11:15,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:11:15,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:11:15,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:11:15,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:11:15,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:11:15,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:11:15,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:11:15,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:11:15,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:11:15,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:11:15,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:11:15,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:11:15,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:11:15,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:11:15,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:11:15,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:11:15,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:11:15,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:11:15,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:11:15,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:11:15,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:11:15,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:11:15,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:11:15,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:11:15,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:11:15,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:11:15,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:11:15,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:11:15,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:11:15,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:11:15,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:11:15,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:11:15,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:11:15,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:11:15,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:11:15,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:11:15,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:11:15,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:11:15,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:11:15,620 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 [2020-10-14 07:11:15,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:11:15,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:11:15,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:11:15,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:11:15,646 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:11:15,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:11:15,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:11:15,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:11:15,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:11:15,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:11:15,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:11:15,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:11:15,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:11:15,648 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:11:15,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:11:15,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:11:15,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:11:15,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:11:15,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:11:15,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:11:15,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:11:15,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:11:15,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:11:15,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:11:15,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:11:15,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:11:15,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:11:15,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:11:15,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:11:15,651 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 -> SequenceOfStatements 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:11:15,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:11:15,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:11:15,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:11:15,984 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:11:15,985 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:11:15,985 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-10-14 07:11:16,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcfbc4b1a/ba0cf66a28234c9cba3c5d05dec7c11a/FLAG97012e066 [2020-10-14 07:11:16,574 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:11:16,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-10-14 07:11:16,596 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcfbc4b1a/ba0cf66a28234c9cba3c5d05dec7c11a/FLAG97012e066 [2020-10-14 07:11:16,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dcfbc4b1a/ba0cf66a28234c9cba3c5d05dec7c11a [2020-10-14 07:11:16,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:11:16,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:11:16,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:11:16,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:11:16,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:11:16,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:16" (1/1) ... [2020-10-14 07:11:16,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bf98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:16, skipping insertion in model container [2020-10-14 07:11:16,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:16" (1/1) ... [2020-10-14 07:11:16,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:11:17,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:11:17,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:11:17,622 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:11:17,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:11:17,832 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:11:17,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17 WrapperNode [2020-10-14 07:11:17,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:11:17,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:11:17,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:11:17,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:11:17,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (1/1) ... [2020-10-14 07:11:17,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (1/1) ... [2020-10-14 07:11:17,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (1/1) ... [2020-10-14 07:11:17,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (1/1) ... [2020-10-14 07:11:17,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (1/1) ... [2020-10-14 07:11:17,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (1/1) ... [2020-10-14 07:11:17,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (1/1) ... [2020-10-14 07:11:17,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:11:17,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:11:17,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:11:17,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:11:17,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (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 [2020-10-14 07:11:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:11:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:11:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:11:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:11:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:11:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:11:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:11:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:11:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:11:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:11:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:11:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:11:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:11:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:11:18,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:11:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:11:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:11:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:11:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:11:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:11:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:11:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:11:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-14 07:11:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:11:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-14 07:11:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:11:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:11:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:11:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:11:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:11:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:11:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:11:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:11:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:11:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:11:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:11:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:11:18,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:11:18,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:11:18,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:11:18,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:11:18,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:11:18,008 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:11:18,008 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:11:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:11:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:11:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:11:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:11:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:11:18,010 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:11:18,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:11:18,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:11:18,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:11:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:11:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:11:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:11:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:11:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:11:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:11:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:11:18,015 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-14 07:11:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:11:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:11:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:11:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:11:19,036 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:11:19,036 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:11:19,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:19 BoogieIcfgContainer [2020-10-14 07:11:19,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:11:19,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:11:19,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:11:19,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:11:19,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:11:16" (1/3) ... [2020-10-14 07:11:19,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558ccc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:19, skipping insertion in model container [2020-10-14 07:11:19,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:17" (2/3) ... [2020-10-14 07:11:19,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558ccc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:19, skipping insertion in model container [2020-10-14 07:11:19,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:19" (3/3) ... [2020-10-14 07:11:19,050 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-10-14 07:11:19,061 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:11:19,069 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:11:19,084 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:11:19,109 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:11:19,110 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:11:19,110 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:11:19,110 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:11:19,110 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:11:19,110 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:11:19,110 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:11:19,111 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:11:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2020-10-14 07:11:19,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:11:19,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:19,147 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] [2020-10-14 07:11:19,148 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:19,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:19,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1671120280, now seen corresponding path program 1 times [2020-10-14 07:11:19,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:19,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834987912] [2020-10-14 07:11:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:19,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:19,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:20,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 07:11:22,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:11:22,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2744 [2020-10-14 07:11:22,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:11:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 07:11:22,733 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:11:22,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:11:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:22,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 07:11:22,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:22,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:11:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:22,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:22,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:22,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:11:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:22,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:22,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:22,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:11:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:22,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:22,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:22,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:11:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:22,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:22,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:11:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:22,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:22,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:22,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:11:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:22,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:22,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:11:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:22,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:22,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:22,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:22,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:22,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:22,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:22,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:22,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:11:22,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834987912] [2020-10-14 07:11:22,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:11:22,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:11:22,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840873034] [2020-10-14 07:11:22,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:11:22,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:11:22,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:11:22,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:11:22,894 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 3 states. [2020-10-14 07:11:24,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:11:24,368 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2020-10-14 07:11:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:11:24,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-14 07:11:24,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:11:24,389 INFO L225 Difference]: With dead ends: 329 [2020-10-14 07:11:24,389 INFO L226 Difference]: Without dead ends: 178 [2020-10-14 07:11:24,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:11:24,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-14 07:11:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 142. [2020-10-14 07:11:24,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-14 07:11:24,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 169 transitions. [2020-10-14 07:11:24,520 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 169 transitions. Word has length 52 [2020-10-14 07:11:24,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:11:24,521 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 169 transitions. [2020-10-14 07:11:24,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:11:24,521 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 169 transitions. [2020-10-14 07:11:24,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:11:24,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:24,525 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] [2020-10-14 07:11:24,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:11:24,525 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:24,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:24,526 INFO L82 PathProgramCache]: Analyzing trace with hash -374509178, now seen corresponding path program 1 times [2020-10-14 07:11:24,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:24,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751025586] [2020-10-14 07:11:24,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:24,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:24,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:25,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:26,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:26,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:11:26,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:11:26,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2186 [2020-10-14 07:11:26,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:26,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:11:26,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:11:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,055 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:11:27,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:11:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:27,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 07:11:27,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:27,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:11:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:27,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:27,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:11:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:27,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:11:27,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:27,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:11:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:27,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:27,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:27,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:11:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:27,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:11:27,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:27,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:11:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:27,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:27,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:27,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:11:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:27,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:27,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:27,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 07:11:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:27,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:27,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:27,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:27,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:27,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:27,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:27,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:27,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:27,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:11:27,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751025586] [2020-10-14 07:11:27,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:11:27,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:11:27,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229571760] [2020-10-14 07:11:27,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:11:27,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:11:27,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:11:27,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:11:27,150 INFO L87 Difference]: Start difference. First operand 142 states and 169 transitions. Second operand 4 states. [2020-10-14 07:11:27,613 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:11:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:11:28,446 INFO L93 Difference]: Finished difference Result 256 states and 314 transitions. [2020-10-14 07:11:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:11:28,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 07:11:28,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:11:28,476 INFO L225 Difference]: With dead ends: 256 [2020-10-14 07:11:28,476 INFO L226 Difference]: Without dead ends: 162 [2020-10-14 07:11:28,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:11:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-14 07:11:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2020-10-14 07:11:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-14 07:11:28,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2020-10-14 07:11:28,525 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 53 [2020-10-14 07:11:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:11:28,525 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2020-10-14 07:11:28,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:11:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2020-10-14 07:11:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 07:11:28,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:28,528 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] [2020-10-14 07:11:28,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:11:28,528 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:28,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:28,529 INFO L82 PathProgramCache]: Analyzing trace with hash 299348801, now seen corresponding path program 1 times [2020-10-14 07:11:28,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:28,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770308940] [2020-10-14 07:11:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:28,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:28,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 07:11:30,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:11:30,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1580 [2020-10-14 07:11:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:11:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 07:11:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:30,514 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:11:30,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:11:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:30,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 07:11:30,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:30,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:11:30,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:30,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:11:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:30,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:30,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:30,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:30,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:30,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:11:30,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:11:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:30,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:30,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:30,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:30,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:30,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:11:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:30,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:11:30,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:11:30,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:11:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:30,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:30,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:30,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:11:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:30,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:30,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:30,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:30,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:30,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:30,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:11:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:30,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:30,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:30,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:30,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:30,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:11:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:30,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:30,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:30,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:30,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:11:30,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:30,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:30,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:11:30,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770308940] [2020-10-14 07:11:30,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:11:30,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:11:30,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803507132] [2020-10-14 07:11:30,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:11:30,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:11:30,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:11:30,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:11:30,761 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand 4 states. [2020-10-14 07:11:31,074 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:11:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:11:32,776 INFO L93 Difference]: Finished difference Result 394 states and 489 transitions. [2020-10-14 07:11:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:11:32,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-14 07:11:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:11:32,814 INFO L225 Difference]: With dead ends: 394 [2020-10-14 07:11:32,814 INFO L226 Difference]: Without dead ends: 285 [2020-10-14 07:11:32,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:11:32,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-14 07:11:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 236. [2020-10-14 07:11:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-14 07:11:32,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 285 transitions. [2020-10-14 07:11:32,895 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 285 transitions. Word has length 57 [2020-10-14 07:11:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:11:32,896 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 285 transitions. [2020-10-14 07:11:32,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:11:32,896 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 285 transitions. [2020-10-14 07:11:32,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 07:11:32,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:32,899 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] [2020-10-14 07:11:32,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:11:32,900 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:32,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:32,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1748947784, now seen corresponding path program 1 times [2020-10-14 07:11:32,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:32,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067169259] [2020-10-14 07:11:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:32,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:33,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 07:11:33,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 771 [2020-10-14 07:11:33,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:33,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:11:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:11:33,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:33,998 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:11:33,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:11:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:34,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 07:11:34,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:11:34,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:11:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:34,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 07:11:34,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:34,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:11:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:34,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:11:34,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:34,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:11:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:34,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:11:34,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:34,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:11:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:34,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:34,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:11:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:11:34,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:34,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:34,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:11:34,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:11:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:34,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:34,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:34,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:11:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:34,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:11:34,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:11:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:11:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:34,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:34,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:34,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:34,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:34,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:34,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:34,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:34,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:34,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:34,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:34,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:11:34,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067169259] [2020-10-14 07:11:34,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:11:34,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:11:34,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198906763] [2020-10-14 07:11:34,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:11:34,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:11:34,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:11:34,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:11:34,311 INFO L87 Difference]: Start difference. First operand 236 states and 285 transitions. Second operand 8 states. [2020-10-14 07:11:34,748 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:11:36,222 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:11:36,594 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:11:36,856 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:11:37,126 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:11:37,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:11:37,943 INFO L93 Difference]: Finished difference Result 736 states and 964 transitions. [2020-10-14 07:11:37,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:11:37,944 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-14 07:11:37,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:11:37,951 INFO L225 Difference]: With dead ends: 736 [2020-10-14 07:11:37,951 INFO L226 Difference]: Without dead ends: 524 [2020-10-14 07:11:37,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:11:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-10-14 07:11:38,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 455. [2020-10-14 07:11:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-10-14 07:11:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 559 transitions. [2020-10-14 07:11:38,053 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 559 transitions. Word has length 63 [2020-10-14 07:11:38,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:11:38,053 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 559 transitions. [2020-10-14 07:11:38,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:11:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 559 transitions. [2020-10-14 07:11:38,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:11:38,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:38,057 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] [2020-10-14 07:11:38,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:11:38,058 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:38,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:38,058 INFO L82 PathProgramCache]: Analyzing trace with hash -145060242, now seen corresponding path program 1 times [2020-10-14 07:11:38,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:38,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447673667] [2020-10-14 07:11:38,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:11:38,099 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:11:38,099 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:11:38,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:11:38,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:11:38 BoogieIcfgContainer [2020-10-14 07:11:38,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:11:38,127 INFO L168 Benchmark]: Toolchain (without parser) took 21204.39 ms. Allocated memory was 144.2 MB in the beginning and 525.9 MB in the end (delta: 381.7 MB). Free memory was 99.2 MB in the beginning and 379.9 MB in the end (delta: -280.7 MB). Peak memory consumption was 101.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:38,128 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:11:38,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 909.76 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 98.8 MB in the beginning and 168.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:38,130 INFO L168 Benchmark]: Boogie Preprocessor took 91.02 ms. Allocated memory is still 203.4 MB. Free memory was 168.2 MB in the beginning and 164.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:38,131 INFO L168 Benchmark]: RCFGBuilder took 1115.83 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 164.2 MB in the beginning and 191.6 MB in the end (delta: -27.5 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:38,132 INFO L168 Benchmark]: TraceAbstraction took 19082.24 ms. Allocated memory was 233.3 MB in the beginning and 525.9 MB in the end (delta: 292.6 MB). Free memory was 191.6 MB in the beginning and 379.9 MB in the end (delta: -188.3 MB). Peak memory consumption was 104.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:38,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 909.76 ms. Allocated memory was 144.2 MB in the beginning and 203.4 MB in the end (delta: 59.2 MB). Free memory was 98.8 MB in the beginning and 168.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.02 ms. Allocated memory is still 203.4 MB. Free memory was 168.2 MB in the beginning and 164.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1115.83 ms. Allocated memory was 203.4 MB in the beginning and 233.3 MB in the end (delta: 29.9 MB). Free memory was 164.2 MB in the beginning and 191.6 MB in the end (delta: -27.5 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19082.24 ms. Allocated memory was 233.3 MB in the beginning and 525.9 MB in the end (delta: 292.6 MB). Free memory was 191.6 MB in the beginning and 379.9 MB in the end (delta: -188.3 MB). Peak memory consumption was 104.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) [L577] CALL waterRise() [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 [L577] RET waterRise() [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) [L603] CALL stopSystem() [L828] COND FALSE !(\read(pumpRunning)) [L835] systemActive = 0 [L603] RET stopSystem() [L610] CALL timeShift() [L637] COND FALSE !(\read(pumpRunning)) [L644] COND FALSE !(\read(systemActive)) [L652] CALL __utac_acc__Specification3_spec__1() [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L942] CALL, EXPR isMethaneLevelCritical() [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L942] RET, EXPR isMethaneLevelCritical() [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L948] CALL, EXPR getWaterLevel() [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); [L948] RET, EXPR getWaterLevel() [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L952] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L952] RET, EXPR isPumpRunning() [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) [L958] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 241 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 544 SDtfs, 810 SDslu, 254 SDs, 0 SdLazy, 1347 SolverSat, 489 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=455occurred 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, 183 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60956 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...