/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 16:54:48,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 16:54:48,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 16:54:48,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 16:54:48,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 16:54:48,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 16:54:48,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 16:54:48,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 16:54:48,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 16:54:48,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 16:54:48,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 16:54:48,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 16:54:48,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 16:54:48,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 16:54:48,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 16:54:48,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 16:54:48,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 16:54:48,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 16:54:48,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 16:54:48,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 16:54:48,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 16:54:48,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 16:54:48,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 16:54:48,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 16:54:48,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 16:54:48,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 16:54:48,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 16:54:48,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 16:54:48,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 16:54:48,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 16:54:48,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 16:54:48,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 16:54:48,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 16:54:48,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 16:54:48,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 16:54:48,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 16:54:48,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 16:54:48,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 16:54:48,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 16:54:48,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 16:54:48,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 16:54:48,812 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 [2020-10-28 16:54:48,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 16:54:48,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 16:54:48,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 16:54:48,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 16:54:48,845 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 16:54:48,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 16:54:48,845 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 16:54:48,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 16:54:48,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 16:54:48,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 16:54:48,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 16:54:48,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 16:54:48,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 16:54:48,846 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 16:54:48,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 16:54:48,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 16:54:48,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 16:54:48,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 16:54:48,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 16:54:48,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 16:54:48,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 16:54:48,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 16:54:48,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 16:54:48,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 16:54:48,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 16:54:48,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 16:54:48,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 16:54:48,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 16:54:48,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 16:54:48,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 16:54:49,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 16:54:49,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 16:54:49,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 16:54:49,337 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 16:54:49,338 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 16:54:49,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-10-28 16:54:49,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b986fa38f/b6deb1cec74f45bdaf41c54e64b82157/FLAG501f5bcd9 [2020-10-28 16:54:50,185 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 16:54:50,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-10-28 16:54:50,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b986fa38f/b6deb1cec74f45bdaf41c54e64b82157/FLAG501f5bcd9 [2020-10-28 16:54:50,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b986fa38f/b6deb1cec74f45bdaf41c54e64b82157 [2020-10-28 16:54:50,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 16:54:50,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 16:54:50,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:50,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 16:54:50,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 16:54:50,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:50" (1/1) ... [2020-10-28 16:54:50,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af2db43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:50, skipping insertion in model container [2020-10-28 16:54:50,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:54:50" (1/1) ... [2020-10-28 16:54:50,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 16:54:50,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 16:54:50,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:50,904 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 16:54:51,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 16:54:51,121 INFO L208 MainTranslator]: Completed translation [2020-10-28 16:54:51,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51 WrapperNode [2020-10-28 16:54:51,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 16:54:51,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 16:54:51,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 16:54:51,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 16:54:51,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (1/1) ... [2020-10-28 16:54:51,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (1/1) ... [2020-10-28 16:54:51,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (1/1) ... [2020-10-28 16:54:51,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (1/1) ... [2020-10-28 16:54:51,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (1/1) ... [2020-10-28 16:54:51,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (1/1) ... [2020-10-28 16:54:51,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (1/1) ... [2020-10-28 16:54:51,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 16:54:51,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 16:54:51,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 16:54:51,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 16:54:51,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (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 [2020-10-28 16:54:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 16:54:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 16:54:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 16:54:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-28 16:54:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-28 16:54:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-28 16:54:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-28 16:54:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-28 16:54:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-28 16:54:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-28 16:54:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-28 16:54:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-28 16:54:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-28 16:54:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-28 16:54:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-28 16:54:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-28 16:54:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-28 16:54:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-28 16:54:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-28 16:54:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-28 16:54:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-28 16:54:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-28 16:54:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-28 16:54:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-28 16:54:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-28 16:54:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-28 16:54:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-28 16:54:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-28 16:54:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-28 16:54:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-28 16:54:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-28 16:54:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-28 16:54:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-28 16:54:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-28 16:54:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 16:54:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 16:54:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 16:54:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 16:54:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 16:54:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 16:54:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-28 16:54:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-28 16:54:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-28 16:54:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-28 16:54:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-28 16:54:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-28 16:54:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-28 16:54:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-28 16:54:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-28 16:54:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 16:54:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 16:54:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-28 16:54:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 16:54:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 16:54:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 16:54:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 16:54:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-28 16:54:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 16:54:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-28 16:54:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-28 16:54:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 16:54:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-28 16:54:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-28 16:54:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-28 16:54:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-28 16:54:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-28 16:54:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-28 16:54:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-28 16:54:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-28 16:54:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-28 16:54:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-28 16:54:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-28 16:54:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-28 16:54:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-28 16:54:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-28 16:54:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-28 16:54:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-28 16:54:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-28 16:54:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-28 16:54:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-28 16:54:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-28 16:54:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-28 16:54:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-28 16:54:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-28 16:54:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-28 16:54:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-28 16:54:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 16:54:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 16:54:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 16:54:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 16:54:52,916 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 16:54:52,916 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 16:54:52,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:52 BoogieIcfgContainer [2020-10-28 16:54:52,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 16:54:52,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 16:54:52,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 16:54:52,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 16:54:52,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:54:50" (1/3) ... [2020-10-28 16:54:52,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a1bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:52, skipping insertion in model container [2020-10-28 16:54:52,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:54:51" (2/3) ... [2020-10-28 16:54:52,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a1bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:54:52, skipping insertion in model container [2020-10-28 16:54:52,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:54:52" (3/3) ... [2020-10-28 16:54:52,929 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-10-28 16:54:52,941 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 16:54:52,947 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-28 16:54:52,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-28 16:54:52,989 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 16:54:52,990 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 16:54:52,990 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 16:54:52,990 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 16:54:52,990 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 16:54:52,990 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 16:54:52,990 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 16:54:52,991 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 16:54:53,015 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-10-28 16:54:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-28 16:54:53,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:53,027 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] [2020-10-28 16:54:53,028 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]=== [2020-10-28 16:54:53,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:53,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1500374359, now seen corresponding path program 1 times [2020-10-28 16:54:53,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:53,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [661287884] [2020-10-28 16:54:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:53,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:53,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:54,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:56,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:56,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 16:54:56,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:54:56,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3280 [2020-10-28 16:54:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:56,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:56,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 16:54:56,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:56,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-28 16:54:57,032 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:54:57,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:54:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 16:54:57,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:54:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:57,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:57,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:57,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:54:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:57,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:54:57,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:54:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:57,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:54:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:54:57,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:54:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 16:54:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:57,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 16:54:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:54:57,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:57,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:54:57,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 16:54:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:57,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:57,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:54:57,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:54:57,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:54:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 16:54:57,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:54:57,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:54:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:54:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:54:57,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:54:57,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:54:57,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:54:57,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [661287884] [2020-10-28 16:54:57,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:54:57,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 16:54:57,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729797577] [2020-10-28 16:54:57,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 16:54:57,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:54:57,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 16:54:57,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 16:54:57,273 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-10-28 16:54:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:54:58,796 INFO L93 Difference]: Finished difference Result 310 states and 409 transitions. [2020-10-28 16:54:58,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 16:54:58,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-28 16:54:58,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:54:58,816 INFO L225 Difference]: With dead ends: 310 [2020-10-28 16:54:58,816 INFO L226 Difference]: Without dead ends: 166 [2020-10-28 16:54:58,822 INFO L677 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 [2020-10-28 16:54:58,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-28 16:54:59,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 132. [2020-10-28 16:54:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-28 16:54:59,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2020-10-28 16:54:59,023 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 53 [2020-10-28 16:54:59,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:54:59,023 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2020-10-28 16:54:59,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 16:54:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2020-10-28 16:54:59,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-28 16:54:59,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:54:59,034 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] [2020-10-28 16:54:59,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 16:54:59,034 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]=== [2020-10-28 16:54:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:54:59,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1212597655, now seen corresponding path program 1 times [2020-10-28 16:54:59,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:54:59,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139567171] [2020-10-28 16:54:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:54:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:54:59,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:59,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:54:59,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 16:55:02,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 16:55:02,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3264 [2020-10-28 16:55:02,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 16:55:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 16:55:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,832 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:02,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:02,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 16:55:02,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:02,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:02,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:55:02,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:02,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:02,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:55:02,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:02,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:02,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:02,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:02,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:02,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:02,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:02,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:55:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:02,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:02,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:02,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-28 16:55:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:02,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:02,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 16:55:02,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 16:55:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:02,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:02,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:02,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:02,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:02,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:02,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:02,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:02,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:02,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:02,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139567171] [2020-10-28 16:55:02,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:02,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:55:02,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894804286] [2020-10-28 16:55:02,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:55:02,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:02,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:55:02,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:55:02,991 INFO L87 Difference]: Start difference. First operand 132 states and 157 transitions. Second operand 4 states. [2020-10-28 16:55:03,662 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-28 16:55:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:04,780 INFO L93 Difference]: Finished difference Result 234 states and 288 transitions. [2020-10-28 16:55:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:55:04,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-28 16:55:04,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:04,784 INFO L225 Difference]: With dead ends: 234 [2020-10-28 16:55:04,785 INFO L226 Difference]: Without dead ends: 150 [2020-10-28 16:55:04,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:55:04,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-28 16:55:04,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2020-10-28 16:55:04,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-28 16:55:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2020-10-28 16:55:04,848 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 54 [2020-10-28 16:55:04,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:04,848 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2020-10-28 16:55:04,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:55:04,849 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2020-10-28 16:55:04,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-28 16:55:04,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:04,855 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] [2020-10-28 16:55:04,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 16:55:04,855 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]=== [2020-10-28 16:55:04,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:04,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1534149724, now seen corresponding path program 1 times [2020-10-28 16:55:04,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:04,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276537767] [2020-10-28 16:55:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:04,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:05,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:06,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:06,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 16:55:06,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 16:55:06,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1764 [2020-10-28 16:55:06,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:06,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:06,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 16:55:06,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:06,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 16:55:06,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:07,054 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:07,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:07,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 16:55:07,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:07,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:55:07,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:07,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:07,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:07,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:07,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:07,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:07,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:07,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:07,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:07,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:07,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:07,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:07,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:07,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:07,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 16:55:07,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:07,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 16:55:07,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:07,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:07,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:07,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:07,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:07,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:07,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 16:55:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:07,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:07,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:07,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:07,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:07,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:55:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:07,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:07,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:07,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:07,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:07,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:55:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:07,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:07,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:07,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:55:07,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:07,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:07,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:07,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:07,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276537767] [2020-10-28 16:55:07,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:07,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 16:55:07,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108673441] [2020-10-28 16:55:07,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 16:55:07,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:07,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 16:55:07,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 16:55:07,317 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 4 states. [2020-10-28 16:55:07,847 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:09,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:09,904 INFO L93 Difference]: Finished difference Result 360 states and 449 transitions. [2020-10-28 16:55:09,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 16:55:09,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-28 16:55:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:09,910 INFO L225 Difference]: With dead ends: 360 [2020-10-28 16:55:09,911 INFO L226 Difference]: Without dead ends: 261 [2020-10-28 16:55:09,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 16:55:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-10-28 16:55:10,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 215. [2020-10-28 16:55:10,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-28 16:55:10,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 260 transitions. [2020-10-28 16:55:10,007 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 260 transitions. Word has length 58 [2020-10-28 16:55:10,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:10,008 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 260 transitions. [2020-10-28 16:55:10,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 16:55:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 260 transitions. [2020-10-28 16:55:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 16:55:10,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:10,010 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] [2020-10-28 16:55:10,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 16:55:10,010 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]=== [2020-10-28 16:55:10,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:10,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1331170360, now seen corresponding path program 1 times [2020-10-28 16:55:10,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:10,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83612401] [2020-10-28 16:55:10,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:10,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 16:55:11,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1067 [2020-10-28 16:55:11,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 16:55:11,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:11,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 16:55:11,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,562 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-28 16:55:11,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 16:55:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 16:55:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 16:55:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 16:55:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:11,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:11,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:11,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 16:55:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:11,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:11,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:11,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 16:55:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:11,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:11,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:11,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 16:55:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 16:55:11,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:11,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 16:55:11,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-28 16:55:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 16:55:11,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:55:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 16:55:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 16:55:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 16:55:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:11,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 16:55:11,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 16:55:11,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:11,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 16:55:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:11,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 16:55:11,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 16:55:11,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 16:55:11,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 16:55:11,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 16:55:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 16:55:11,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 16:55:11,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 16:55:11,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 16:55:11,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 16:55:11,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 16:55:11,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 16:55:11,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 16:55:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 16:55:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 16:55:11,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 16:55:11,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 16:55:11,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 16:55:11,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83612401] [2020-10-28 16:55:11,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 16:55:11,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 16:55:11,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527054678] [2020-10-28 16:55:11,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 16:55:11,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 16:55:11,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 16:55:11,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-28 16:55:11,894 INFO L87 Difference]: Start difference. First operand 215 states and 260 transitions. Second operand 9 states. [2020-10-28 16:55:12,546 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:14,683 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-28 16:55:15,240 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:15,703 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-28 16:55:16,125 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-28 16:55:16,705 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-28 16:55:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 16:55:17,837 INFO L93 Difference]: Finished difference Result 682 states and 904 transitions. [2020-10-28 16:55:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 16:55:17,838 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-28 16:55:17,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 16:55:17,844 INFO L225 Difference]: With dead ends: 682 [2020-10-28 16:55:17,844 INFO L226 Difference]: Without dead ends: 491 [2020-10-28 16:55:17,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-28 16:55:17,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-28 16:55:18,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 412. [2020-10-28 16:55:18,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-28 16:55:18,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 512 transitions. [2020-10-28 16:55:18,006 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 512 transitions. Word has length 64 [2020-10-28 16:55:18,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 16:55:18,006 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 512 transitions. [2020-10-28 16:55:18,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 16:55:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 512 transitions. [2020-10-28 16:55:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 16:55:18,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 16:55:18,010 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] [2020-10-28 16:55:18,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 16:55:18,011 INFO L429 AbstractCegarLoop]: === Iteration 5 === [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]=== [2020-10-28 16:55:18,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 16:55:18,011 INFO L82 PathProgramCache]: Analyzing trace with hash -475556206, now seen corresponding path program 1 times [2020-10-28 16:55:18,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 16:55:18,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [635685126] [2020-10-28 16:55:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 16:55:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 16:55:18,064 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 16:55:18,064 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 16:55:18,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 16:55:18,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 04:55:18 BoogieIcfgContainer [2020-10-28 16:55:18,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 16:55:18,109 INFO L168 Benchmark]: Toolchain (without parser) took 27689.56 ms. Allocated memory was 151.0 MB in the beginning and 458.2 MB in the end (delta: 307.2 MB). Free memory was 123.8 MB in the beginning and 236.8 MB in the end (delta: -113.0 MB). Peak memory consumption was 195.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:18,110 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 16:55:18,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.40 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 102.3 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:18,114 INFO L168 Benchmark]: Boogie Preprocessor took 162.38 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 98.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:18,120 INFO L168 Benchmark]: RCFGBuilder took 1632.60 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 98.3 MB in the beginning and 156.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 53.2 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:18,121 INFO L168 Benchmark]: TraceAbstraction took 25186.15 ms. Allocated memory was 181.4 MB in the beginning and 458.2 MB in the end (delta: 276.8 MB). Free memory was 155.8 MB in the beginning and 236.8 MB in the end (delta: -81.0 MB). Peak memory consumption was 195.3 MB. Max. memory is 8.0 GB. [2020-10-28 16:55:18,132 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 123.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 694.40 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 102.3 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 162.38 ms. Allocated memory is still 151.0 MB. Free memory was 102.3 MB in the beginning and 98.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1632.60 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 98.3 MB in the beginning and 156.4 MB in the end (delta: -58.1 MB). Peak memory consumption was 53.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25186.15 ms. Allocated memory was 181.4 MB in the beginning and 458.2 MB in the end (delta: 276.8 MB). Free memory was 155.8 MB in the beginning and 236.8 MB in the end (delta: -81.0 MB). Peak memory consumption was 195.3 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; [L943] int retValue_acc ; [L944] int tmp ; [L948] FCALL select_helpers() [L949] FCALL select_features() [L950] CALL, EXPR valid_product() [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L950] RET, EXPR valid_product() [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) [L954] FCALL setup() [L955] CALL runTest() [L937] CALL test() [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 [L526] COND TRUE 1 [L528] COND TRUE splverifierCounter < 4 [L534] tmp = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp) [L538] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L538] RET waterRise() [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___2)) [L560] tmp___1 = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp___1) [L564] CALL stopSystem() [L786] COND FALSE !(\read(pumpRunning)) [L793] systemActive = 0 [L564] RET stopSystem() [L571] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND FALSE !(\read(systemActive)) [L610] CALL __utac_acc__Specification3_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L805] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L805] RET, EXPR isMethaneLevelCritical() [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L811] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L811] RET, EXPR getWaterLevel() [L811] tmp___0 = getWaterLevel() [L813] COND TRUE tmp___0 == 2 [L815] CALL, EXPR isPumpRunning() [L719] int retValue_acc ; [L722] retValue_acc = pumpRunning [L723] return (retValue_acc); [L815] RET, EXPR isPumpRunning() [L815] tmp___1 = isPumpRunning() [L817] COND FALSE !(\read(tmp___1)) [L821] CALL __automaton_fail() [L142] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product31.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 252 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 497 SDtfs, 740 SDslu, 247 SDs, 0 SdLazy, 1317 SolverSat, 465 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=412occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 68212 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...