/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:35:52,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:35:52,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:35:52,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:35:52,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:35:52,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:35:52,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:35:52,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:35:52,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:35:52,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:35:52,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:35:52,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:35:52,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:35:52,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:35:52,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:35:52,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:35:52,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:35:52,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:35:52,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:35:52,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:35:52,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:35:52,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:35:52,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:35:52,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:35:52,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:35:52,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:35:52,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:35:52,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:35:52,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:35:52,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:35:52,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:35:52,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:35:52,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:35:52,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:35:52,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:35:52,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:35:52,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:35:52,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:35:52,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:35:52,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:35:52,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:35:52,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 03:35:52,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:35:52,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:35:52,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:35:52,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:35:52,375 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:35:52,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:35:52,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:35:52,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:35:52,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:35:52,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:35:52,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:35:52,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:35:52,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:35:52,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:35:52,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:35:52,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:35:52,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:35:52,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:35:52,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:35:52,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:35:52,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:35:52,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:52,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:35:52,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:35:52,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:35:52,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:35:52,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:35:52,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:35:52,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:35:52,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:35:52,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:35:52,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:35:52,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:35:52,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:35:52,853 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:35:52,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-27 03:35:52,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b86b432d6/245589b5e8e24c378b80ac38e730c7d3/FLAGabeb3fbd3 [2020-10-27 03:35:53,673 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:35:53,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-27 03:35:53,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b86b432d6/245589b5e8e24c378b80ac38e730c7d3/FLAGabeb3fbd3 [2020-10-27 03:35:53,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b86b432d6/245589b5e8e24c378b80ac38e730c7d3 [2020-10-27 03:35:53,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:35:53,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:35:53,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:53,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:35:53,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:35:53,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:53" (1/1) ... [2020-10-27 03:35:53,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8d7a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:53, skipping insertion in model container [2020-10-27 03:35:53,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:53" (1/1) ... [2020-10-27 03:35:53,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:35:54,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:35:54,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:54,357 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:35:54,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:54,574 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:35:54,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54 WrapperNode [2020-10-27 03:35:54,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:54,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:35:54,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:35:54,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:35:54,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:35:54,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:35:54,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:35:54,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:35:54,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:54,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:35:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:35:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:35:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:54,817 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:35:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:35:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:35:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:35:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:35:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:35:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:35:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:35:54,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:35:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:35:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:35:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:35:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:35:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:35:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:35:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:35:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:35:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:35:54,821 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:35:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:35:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:35:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:35:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:35:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:35:54,822 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 03:35:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:35:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:35:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:35:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:35:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:35:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:35:54,824 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:35:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:35:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:35:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:35:54,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:35:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:35:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:35:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:35:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:35:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:35:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:35:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:35:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:35:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:35:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:35:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:35:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:35:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:35:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:35:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:35:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:35:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:35:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:35:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:35:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:35:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:35:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:35:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:35:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:35:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:35:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:35:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:35:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:35:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:35:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:35:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:35:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:35:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:35:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:35:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:35:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:35:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:35:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:35:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:35:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:35:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:35:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 03:35:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:35:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:35:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:35:56,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:35:56,208 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:35:56,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:56 BoogieIcfgContainer [2020-10-27 03:35:56,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:35:56,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:35:56,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:35:56,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:35:56,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:35:53" (1/3) ... [2020-10-27 03:35:56,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1a5271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:56, skipping insertion in model container [2020-10-27 03:35:56,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54" (2/3) ... [2020-10-27 03:35:56,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1a5271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:56, skipping insertion in model container [2020-10-27 03:35:56,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:56" (3/3) ... [2020-10-27 03:35:56,229 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2020-10-27 03:35:56,245 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:35:56,252 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:35:56,270 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:35:56,324 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:35:56,324 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:35:56,324 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:35:56,326 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:35:56,326 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:35:56,326 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:35:56,327 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:35:56,327 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:35:56,360 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-10-27 03:35:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:35:56,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:56,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:35:56,379 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:35:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash -751019373, now seen corresponding path program 1 times [2020-10-27 03:35:56,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:56,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825956535] [2020-10-27 03:35:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:56,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:56,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:57,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:59,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:35:59,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:35:59,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:35:59,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3002 [2020-10-27 03:35:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:35:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 03:35:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:35:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-27 03:35:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 03:36:00,193 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:00,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:00,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-27 03:36:00,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:00,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:00,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:00,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:00,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:00,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:00,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:00,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:00,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:00,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:00,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:00,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:00,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:00,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:00,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:00,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:00,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:00,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:36:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:00,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:00,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:00,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:00,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:00,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:36:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:00,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:36:00,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:36:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:36:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:00,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:00,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:00,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:36:00,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825956535] [2020-10-27 03:36:00,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:00,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:36:00,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749620051] [2020-10-27 03:36:00,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:36:00,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:00,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:36:00,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:36:00,507 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 8 states. [2020-10-27 03:36:01,136 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:02,084 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 03:36:02,842 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:36:03,399 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:03,850 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:04,237 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 03:36:04,760 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 03:36:05,199 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-27 03:36:05,558 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:06,241 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:36:08,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:08,240 INFO L93 Difference]: Finished difference Result 536 states and 752 transitions. [2020-10-27 03:36:08,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 03:36:08,247 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-27 03:36:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:08,267 INFO L225 Difference]: With dead ends: 536 [2020-10-27 03:36:08,267 INFO L226 Difference]: Without dead ends: 372 [2020-10-27 03:36:08,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-10-27 03:36:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-27 03:36:08,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 326. [2020-10-27 03:36:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-10-27 03:36:08,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 418 transitions. [2020-10-27 03:36:08,449 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 418 transitions. Word has length 53 [2020-10-27 03:36:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:08,450 INFO L481 AbstractCegarLoop]: Abstraction has 326 states and 418 transitions. [2020-10-27 03:36:08,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:36:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 418 transitions. [2020-10-27 03:36:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 03:36:08,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:08,459 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] [2020-10-27 03:36:08,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:36:08,459 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:36:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:08,460 INFO L82 PathProgramCache]: Analyzing trace with hash 449871212, now seen corresponding path program 1 times [2020-10-27 03:36:08,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:08,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869397719] [2020-10-27 03:36:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:09,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:12,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:13,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:13,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-27 03:36:13,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:36:13,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 03:36:13,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 03:36:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:13,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 03:36:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:13,816 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:13,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:13,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:13,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:13,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:13,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-27 03:36:13,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:13,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:13,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:13,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:13,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:13,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:13,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:13,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:13,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:13,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:13,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:13,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:13,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:13,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:13,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:13,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:13,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:13,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:13,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:13,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:13,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:13,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:13,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:13,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:13,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:13,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:13,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:13,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:13,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:13,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:13,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:13,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:13,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:13,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:14,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:14,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:14,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:14,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:14,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:14,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:14,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:14,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:36:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:14,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:14,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:14,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:14,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:14,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:14,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:36:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:14,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:14,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:14,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:14,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:14,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 03:36:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:14,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:14,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:14,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:14,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:14,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:14,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:14,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:14,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:14,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:14,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:14,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 03:36:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:14,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:14,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:14,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:14,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:14,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:14,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:14,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:14,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:14,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:14,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:14,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 03:36:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:14,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:14,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:14,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:14,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:14,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:14,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:36:14,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869397719] [2020-10-27 03:36:14,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:14,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 03:36:14,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917447942] [2020-10-27 03:36:14,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 03:36:14,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:14,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 03:36:14,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:36:14,072 INFO L87 Difference]: Start difference. First operand 326 states and 418 transitions. Second operand 5 states. [2020-10-27 03:36:14,510 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:15,237 INFO L93 Difference]: Finished difference Result 469 states and 624 transitions. [2020-10-27 03:36:15,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 03:36:15,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-10-27 03:36:15,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:15,241 INFO L225 Difference]: With dead ends: 469 [2020-10-27 03:36:15,241 INFO L226 Difference]: Without dead ends: 157 [2020-10-27 03:36:15,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:36:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-27 03:36:15,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2020-10-27 03:36:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-27 03:36:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 165 transitions. [2020-10-27 03:36:15,335 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 165 transitions. Word has length 66 [2020-10-27 03:36:15,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:15,335 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 165 transitions. [2020-10-27 03:36:15,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 03:36:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 165 transitions. [2020-10-27 03:36:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 03:36:15,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:15,340 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] [2020-10-27 03:36:15,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:36:15,340 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:36:15,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:15,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1212682482, now seen corresponding path program 1 times [2020-10-27 03:36:15,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:15,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303906203] [2020-10-27 03:36:15,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:15,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:15,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:15,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 03:36:15,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:15,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-27 03:36:15,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:15,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:15,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 03:36:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:15,897 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:15,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:15,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:15,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:15,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:15,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:15,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 03:36:15,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:15,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:15,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:15,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:36:16,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:16,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:16,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:16,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:16,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:16,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:16,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:16,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:16,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:16,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:36:16,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:16,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:16,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:16,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:36:16,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 03:36:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:16,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:16,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:16,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 03:36:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:16,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:16,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:16,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:16,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:16,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 03:36:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:16,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:16,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:16,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:16,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:16,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 03:36:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:16,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:16,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:16,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:36:16,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303906203] [2020-10-27 03:36:16,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:16,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 03:36:16,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155704619] [2020-10-27 03:36:16,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 03:36:16,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:16,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 03:36:16,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 03:36:16,107 INFO L87 Difference]: Start difference. First operand 145 states and 165 transitions. Second operand 6 states. [2020-10-27 03:36:16,454 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:17,105 INFO L93 Difference]: Finished difference Result 278 states and 330 transitions. [2020-10-27 03:36:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 03:36:17,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-27 03:36:17,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:17,108 INFO L225 Difference]: With dead ends: 278 [2020-10-27 03:36:17,108 INFO L226 Difference]: Without dead ends: 157 [2020-10-27 03:36:17,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:36:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-27 03:36:17,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 145. [2020-10-27 03:36:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-27 03:36:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 163 transitions. [2020-10-27 03:36:17,166 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 163 transitions. Word has length 62 [2020-10-27 03:36:17,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:17,168 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 163 transitions. [2020-10-27 03:36:17,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 03:36:17,168 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 163 transitions. [2020-10-27 03:36:17,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 03:36:17,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:17,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:36:17,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:36:17,172 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:36:17,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:17,173 INFO L82 PathProgramCache]: Analyzing trace with hash -163678489, now seen corresponding path program 1 times [2020-10-27 03:36:17,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:17,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081051411] [2020-10-27 03:36:17,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:36:17,245 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:36:17,245 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:36:17,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:36:17,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:17 BoogieIcfgContainer [2020-10-27 03:36:17,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:36:17,290 INFO L168 Benchmark]: Toolchain (without parser) took 23358.24 ms. Allocated memory was 151.0 MB in the beginning and 496.0 MB in the end (delta: 345.0 MB). Free memory was 125.7 MB in the beginning and 426.0 MB in the end (delta: -300.3 MB). Peak memory consumption was 45.6 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:17,291 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:36:17,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:17,294 INFO L168 Benchmark]: Boogie Preprocessor took 97.99 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 100.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:17,296 INFO L168 Benchmark]: RCFGBuilder took 1539.50 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 127.3 MB in the end (delta: -27.1 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:17,303 INFO L168 Benchmark]: TraceAbstraction took 21069.30 ms. Allocated memory was 151.0 MB in the beginning and 496.0 MB in the end (delta: 345.0 MB). Free memory was 126.8 MB in the beginning and 426.0 MB in the end (delta: -299.2 MB). Peak memory consumption was 46.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:17,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 636.23 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 104.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.99 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 100.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1539.50 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 127.3 MB in the end (delta: -27.1 MB). Peak memory consumption was 55.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21069.30 ms. Allocated memory was 151.0 MB in the beginning and 496.0 MB in the end (delta: 345.0 MB). Free memory was 126.8 MB in the beginning and 426.0 MB in the end (delta: -299.2 MB). Peak memory consumption was 46.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L343] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int cleanupTimeShifts = 4; [L688] int pumpRunning = 0; [L689] int systemActive = 1; [L663] int retValue_acc ; [L664] int tmp ; [L668] FCALL select_helpers() [L669] FCALL select_features() [L670] CALL, EXPR valid_product() [L569] int retValue_acc ; [L572] retValue_acc = 1 [L573] return (retValue_acc); [L670] RET, EXPR valid_product() [L670] tmp = valid_product() [L672] COND TRUE \read(tmp) [L674] FCALL setup() [L675] CALL runTest() [L657] CALL test() [L884] int splverifierCounter ; [L885] int tmp ; [L886] int tmp___0 ; [L887] int tmp___1 ; [L888] int tmp___2 ; [L891] splverifierCounter = 0 [L893] COND TRUE 1 [L895] COND TRUE splverifierCounter < 4 [L901] tmp = __VERIFIER_nondet_int() [L903] COND TRUE \read(tmp) [L905] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L905] RET waterRise() [L911] tmp___0 = __VERIFIER_nondet_int() [L913] COND FALSE !(\read(tmp___0)) [L921] tmp___2 = __VERIFIER_nondet_int() [L923] COND TRUE \read(tmp___2) [L936] CALL timeShift() [L695] COND FALSE !(\read(pumpRunning)) [L702] COND TRUE \read(systemActive) [L704] CALL processEnvironment() [L750] int tmp ; [L753] COND FALSE !(\read(pumpRunning)) [L768] CALL processEnvironment__wrappee__methaneQuery() [L724] int tmp ; [L727] COND FALSE !(\read(pumpRunning)) [L742] FCALL processEnvironment__wrappee__base() [L768] RET processEnvironment__wrappee__methaneQuery() [L704] RET processEnvironment() [L710] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L819] int retValue_acc ; [L822] retValue_acc = pumpRunning [L823] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L582] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product29.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 246 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 293 SDtfs, 771 SDslu, 288 SDs, 0 SdLazy, 1236 SolverSat, 426 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 70 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 57608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...