/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:12:09,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:12:09,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:12:09,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:12:09,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:12:09,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:12:09,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:12:09,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:12:09,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:12:09,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:12:09,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:12:09,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:12:09,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:12:09,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:12:09,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:12:09,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:12:09,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:12:09,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:12:09,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:12:09,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:12:09,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:12:09,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:12:09,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:12:09,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:12:09,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:12:09,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:12:09,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:12:09,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:12:09,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:12:09,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:12:09,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:12:09,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:12:09,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:12:09,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:12:09,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:12:09,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:12:09,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:12:09,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:12:09,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:12:09,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:12:09,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:12:09,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:12:09,889 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:12:09,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:12:09,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:12:09,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:12:09,893 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:12:09,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:12:09,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:12:09,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:12:09,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:12:09,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:12:09,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:12:09,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:12:09,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:12:09,895 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:12:09,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:12:09,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:12:09,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:12:09,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:12:09,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:12:09,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:12:09,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:12:09,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:12:09,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:12:09,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:12:09,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:12:09,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:12:09,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:12:09,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:12:09,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:12:09,898 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.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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:12:10,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:12:10,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:12:10,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:12:10,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:12:10,388 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:12:10,389 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-21 12:12:10,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6568acbb4/4b049fc6023c4631b098c186769ca184/FLAG52547740c [2020-09-21 12:12:11,157 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:12:11,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-09-21 12:12:11,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6568acbb4/4b049fc6023c4631b098c186769ca184/FLAG52547740c [2020-09-21 12:12:11,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6568acbb4/4b049fc6023c4631b098c186769ca184 [2020-09-21 12:12:11,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:12:11,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:12:11,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:12:11,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:12:11,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:12:11,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:12:11" (1/1) ... [2020-09-21 12:12:11,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c20e9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:11, skipping insertion in model container [2020-09-21 12:12:11,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:12:11" (1/1) ... [2020-09-21 12:12:11,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:12:11,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:12:11,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:12:11,973 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:12:12,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:12:12,122 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:12:12,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12 WrapperNode [2020-09-21 12:12:12,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:12:12,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:12:12,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:12:12,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:12:12,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... [2020-09-21 12:12:12,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... [2020-09-21 12:12:12,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... [2020-09-21 12:12:12,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... [2020-09-21 12:12:12,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... [2020-09-21 12:12:12,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... [2020-09-21 12:12:12,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... [2020-09-21 12:12:12,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:12:12,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:12:12,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:12:12,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:12:12,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:12:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:12:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:12:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:12:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:12:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:12:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:12:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:12:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:12:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:12:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:12:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:12:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:12:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:12:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:12:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:12:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:12:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:12:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:12:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:12:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:12:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:12:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:12:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:12:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:12:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:12:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:12:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:12:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:12:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:12:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:12:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:12:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:12:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:12:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:12:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:12:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:12:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:12:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:12:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:12:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:12:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:12:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:12:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:12:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:12:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:12:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:12:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:12:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:12:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:12:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:12:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:12:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:12:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:12:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:12:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:12:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:12:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:12:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:12:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:12:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:12:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:12:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:12:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:12:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:12:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:12:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:12:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:12:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:12:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:12:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:12:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:12:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:12:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:12:12,382 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:12:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:12:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:12:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:12:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:12:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:12:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:12:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 12:12:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:12:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:12:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:12:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:12:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:12:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:12:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:12:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:12:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:12:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:12:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:12:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:12:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:12:13,511 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:12:13,512 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:12:13,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:12:13 BoogieIcfgContainer [2020-09-21 12:12:13,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:12:13,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:12:13,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:12:13,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:12:13,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:12:11" (1/3) ... [2020-09-21 12:12:13,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e02c869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:12:13, skipping insertion in model container [2020-09-21 12:12:13,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:12" (2/3) ... [2020-09-21 12:12:13,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e02c869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:12:13, skipping insertion in model container [2020-09-21 12:12:13,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:12:13" (3/3) ... [2020-09-21 12:12:13,528 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-09-21 12:12:13,541 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:12:13,552 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:12:13,576 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:12:13,610 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:12:13,610 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:12:13,610 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:12:13,610 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:12:13,610 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:12:13,611 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:12:13,611 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:12:13,611 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:12:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-21 12:12:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:12:13,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:13,653 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] [2020-09-21 12:12:13,653 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:13,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:13,660 INFO L82 PathProgramCache]: Analyzing trace with hash -2139663592, now seen corresponding path program 1 times [2020-09-21 12:12:13,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:13,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613458363] [2020-09-21 12:12:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:14,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:14,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:12:15,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:15,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-09-21 12:12:15,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:12:15,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:12:15,484 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:15,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:15,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-21 12:12:15,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:15,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:15,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:15,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:15,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:15,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:15,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:15,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:15,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:15,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:12:15,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:15,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:15,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:15,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:12:15,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:15,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:12:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:15,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:12:15,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:15,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:15,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:12:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:15,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:12:15,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:12:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:15,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:15,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:15,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:15,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:12:15,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:15,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613458363] [2020-09-21 12:12:15,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:15,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:12:15,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132139335] [2020-09-21 12:12:15,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:12:15,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:15,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:12:15,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:12:15,793 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2020-09-21 12:12:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:17,050 INFO L93 Difference]: Finished difference Result 305 states and 403 transitions. [2020-09-21 12:12:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:12:17,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 12:12:17,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:17,070 INFO L225 Difference]: With dead ends: 305 [2020-09-21 12:12:17,071 INFO L226 Difference]: Without dead ends: 165 [2020-09-21 12:12:17,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:12:17,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-21 12:12:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 131. [2020-09-21 12:12:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-09-21 12:12:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 156 transitions. [2020-09-21 12:12:17,177 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 156 transitions. Word has length 52 [2020-09-21 12:12:17,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:17,181 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 156 transitions. [2020-09-21 12:12:17,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:12:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 156 transitions. [2020-09-21 12:12:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 12:12:17,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:17,186 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] [2020-09-21 12:12:17,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:12:17,187 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:17,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:17,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1114338562, now seen corresponding path program 1 times [2020-09-21 12:12:17,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:17,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21510973] [2020-09-21 12:12:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:17,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:17,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 12:12:18,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:18,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-21 12:12:18,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:12:18,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:12:18,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,536 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:18,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:12:18,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:18,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:18,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:18,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:18,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:18,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:18,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:18,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:18,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:18,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:18,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:18,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:18,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:12:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:18,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:18,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:12:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:18,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:18,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:12:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:18,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:18,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:18,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:18,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:18,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:18,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:18,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:18,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:18,684 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21510973] [2020-09-21 12:12:18,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:18,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:12:18,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88079966] [2020-09-21 12:12:18,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:12:18,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:18,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:12:18,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:12:18,688 INFO L87 Difference]: Start difference. First operand 131 states and 156 transitions. Second operand 4 states. [2020-09-21 12:12:19,178 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:12:20,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:20,097 INFO L93 Difference]: Finished difference Result 232 states and 286 transitions. [2020-09-21 12:12:20,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:12:20,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 12:12:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:20,104 INFO L225 Difference]: With dead ends: 232 [2020-09-21 12:12:20,104 INFO L226 Difference]: Without dead ends: 149 [2020-09-21 12:12:20,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:12:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-09-21 12:12:20,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 122. [2020-09-21 12:12:20,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-21 12:12:20,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 144 transitions. [2020-09-21 12:12:20,190 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 144 transitions. Word has length 53 [2020-09-21 12:12:20,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:20,191 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 144 transitions. [2020-09-21 12:12:20,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:12:20,192 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 144 transitions. [2020-09-21 12:12:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:12:20,201 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:20,201 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] [2020-09-21 12:12:20,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:12:20,201 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:20,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1063304095, now seen corresponding path program 1 times [2020-09-21 12:12:20,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:20,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036362454] [2020-09-21 12:12:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:20,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:12:21,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:21,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1079 [2020-09-21 12:12:21,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:12:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:21,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 12:12:21,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,655 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:21,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:21,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-21 12:12:21,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:21,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:21,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:12:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:21,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:21,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:21,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:21,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:21,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:21,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:21,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:21,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:21,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:21,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:21,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:21,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:21,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:21,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:21,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:12:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:21,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:21,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:21,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:21,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:12:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:21,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:21,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:21,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:21,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:12:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:21,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:21,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:21,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:21,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:21,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:21,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:21,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036362454] [2020-09-21 12:12:21,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:21,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:12:21,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144176857] [2020-09-21 12:12:21,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:12:21,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:21,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:12:21,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:12:21,951 INFO L87 Difference]: Start difference. First operand 122 states and 144 transitions. Second operand 4 states. [2020-09-21 12:12:22,254 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:23,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:23,805 INFO L93 Difference]: Finished difference Result 357 states and 446 transitions. [2020-09-21 12:12:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:12:23,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 12:12:23,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:23,813 INFO L225 Difference]: With dead ends: 357 [2020-09-21 12:12:23,813 INFO L226 Difference]: Without dead ends: 259 [2020-09-21 12:12:23,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:12:23,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-21 12:12:23,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 214. [2020-09-21 12:12:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-21 12:12:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 259 transitions. [2020-09-21 12:12:23,916 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 259 transitions. Word has length 57 [2020-09-21 12:12:23,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:23,917 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 259 transitions. [2020-09-21 12:12:23,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:12:23,917 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 259 transitions. [2020-09-21 12:12:23,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 12:12:23,920 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:23,920 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] [2020-09-21 12:12:23,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:12:23,921 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:23,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:23,921 INFO L82 PathProgramCache]: Analyzing trace with hash 248297521, now seen corresponding path program 1 times [2020-09-21 12:12:23,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:23,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650632921] [2020-09-21 12:12:23,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:24,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:12:25,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1053 [2020-09-21 12:12:25,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 12:12:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:12:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:25,354 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:25,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:25,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-21 12:12:25,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:12:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:25,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:25,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:25,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:25,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:25,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:25,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:25,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:25,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:12:25,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:25,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:25,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:25,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:25,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:12:25,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:25,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:12:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:12:25,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:25,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:12:25,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:25,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:12:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:25,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:25,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:25,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:12:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:25,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:12:25,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:12:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:12:25,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:12:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:25,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:25,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:25,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:25,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:25,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:25,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:25,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:25,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650632921] [2020-09-21 12:12:25,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:25,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:12:25,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005486935] [2020-09-21 12:12:25,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:12:25,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:25,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:12:25,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:12:25,624 INFO L87 Difference]: Start difference. First operand 214 states and 259 transitions. Second operand 9 states. [2020-09-21 12:12:25,972 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:27,618 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 12:12:28,062 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:12:28,432 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:12:28,806 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:12:29,214 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:12:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:29,991 INFO L93 Difference]: Finished difference Result 680 states and 902 transitions. [2020-09-21 12:12:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:12:29,993 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-09-21 12:12:29,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:30,001 INFO L225 Difference]: With dead ends: 680 [2020-09-21 12:12:30,001 INFO L226 Difference]: Without dead ends: 490 [2020-09-21 12:12:30,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:12:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-09-21 12:12:30,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 411. [2020-09-21 12:12:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-21 12:12:30,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 511 transitions. [2020-09-21 12:12:30,124 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 511 transitions. Word has length 63 [2020-09-21 12:12:30,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:30,125 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 511 transitions. [2020-09-21 12:12:30,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:12:30,125 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 511 transitions. [2020-09-21 12:12:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 12:12:30,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:30,128 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] [2020-09-21 12:12:30,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:12:30,129 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:30,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:30,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1719041065, now seen corresponding path program 1 times [2020-09-21 12:12:30,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:30,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302322846] [2020-09-21 12:12:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:12:30,199 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:12:30,200 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:12:30,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:12:30,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:12:30 BoogieIcfgContainer [2020-09-21 12:12:30,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:12:30,236 INFO L168 Benchmark]: Toolchain (without parser) took 18854.79 ms. Allocated memory was 140.0 MB in the beginning and 514.9 MB in the end (delta: 374.9 MB). Free memory was 102.1 MB in the beginning and 87.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 390.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:30,237 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-21 12:12:30,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.19 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.2 MB in the beginning and 172.4 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:30,239 INFO L168 Benchmark]: Boogie Preprocessor took 140.01 ms. Allocated memory is still 205.0 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:30,240 INFO L168 Benchmark]: RCFGBuilder took 1252.67 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 167.4 MB in the beginning and 196.0 MB in the end (delta: -28.6 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:30,241 INFO L168 Benchmark]: TraceAbstraction took 16714.07 ms. Allocated memory was 237.5 MB in the beginning and 514.9 MB in the end (delta: 277.3 MB). Free memory was 196.0 MB in the beginning and 87.0 MB in the end (delta: 109.0 MB). Peak memory consumption was 386.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:12:30,245 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 739.19 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.2 MB in the beginning and 172.4 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.01 ms. Allocated memory is still 205.0 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1252.67 ms. Allocated memory was 205.0 MB in the beginning and 237.5 MB in the end (delta: 32.5 MB). Free memory was 167.4 MB in the beginning and 196.0 MB in the end (delta: -28.6 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16714.07 ms. Allocated memory was 237.5 MB in the beginning and 514.9 MB in the end (delta: 277.3 MB). Free memory was 196.0 MB in the beginning and 87.0 MB in the end (delta: 109.0 MB). Peak memory consumption was 386.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int pumpRunning = 0; [L586] int systemActive = 1; [L868] int cleanupTimeShifts = 4; [L941] int retValue_acc ; [L942] int tmp ; [L946] FCALL select_helpers() [L947] FCALL select_features() [L948] CALL, EXPR valid_product() [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); [L948] RET, EXPR valid_product() [L948] tmp = valid_product() [L950] COND TRUE \read(tmp) [L952] FCALL setup() [L953] CALL runTest() [L935] CALL test() [L515] int splverifierCounter ; [L516] int tmp ; [L517] int tmp___0 ; [L518] int tmp___1 ; [L519] int tmp___2 ; [L522] splverifierCounter = 0 [L524] COND TRUE 1 [L526] COND TRUE splverifierCounter < 4 [L532] tmp = __VERIFIER_nondet_int() [L534] COND TRUE \read(tmp) [L536] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L536] RET waterRise() [L542] tmp___0 = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp___0)) [L552] tmp___2 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___2)) [L558] tmp___1 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___1) [L562] CALL stopSystem() [L784] COND FALSE !(\read(pumpRunning)) [L791] systemActive = 0 [L562] RET stopSystem() [L569] CALL timeShift() [L593] COND FALSE !(\read(pumpRunning)) [L600] COND FALSE !(\read(systemActive)) [L608] CALL __utac_acc__Specification3_spec__1() [L797] int tmp ; [L798] int tmp___0 ; [L799] int tmp___1 ; [L803] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L809] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L809] RET, EXPR getWaterLevel() [L809] tmp___0 = getWaterLevel() [L811] COND TRUE tmp___0 == 2 [L813] CALL, EXPR isPumpRunning() [L717] int retValue_acc ; [L720] retValue_acc = pumpRunning [L721] return (retValue_acc); [L813] RET, EXPR isPumpRunning() [L813] tmp___1 = isPumpRunning() [L815] COND FALSE !(\read(tmp___1)) [L819] CALL __automaton_fail() [L140] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 490 SDtfs, 797 SDslu, 270 SDs, 0 SdLazy, 1383 SolverSat, 484 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred 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, 185 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 62816 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...