/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:57:52,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:57:52,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:57:52,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:57:52,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:57:52,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:57:52,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:57:52,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:57:52,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:57:52,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:57:52,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:57:52,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:57:52,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:57:52,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:57:52,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:57:52,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:57:52,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:57:52,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:57:52,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:57:52,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:57:52,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:57:52,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:57:52,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:57:52,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:57:52,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:57:52,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:57:52,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:57:52,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:57:52,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:57:52,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:57:52,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:57:52,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:57:52,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:57:52,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:57:52,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:57:52,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:57:52,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:57:52,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:57:52,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:57:52,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:57:52,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:57:52,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:57:52,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:57:52,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:57:52,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:57:52,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:57:52,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:57:52,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:57:52,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:57:52,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:57:52,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:57:52,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:57:52,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:57:52,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:57:52,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:57:52,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:57:52,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:57:52,839 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:57:52,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:57:52,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:57:52,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:57:52,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:57:52,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:57:52,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:57:52,840 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:57:53,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:57:53,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:57:53,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:57:53,283 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:57:53,284 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:57:53,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-10-23 23:57:53,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c02d76ef/d992634baeee40c2858fc0493e07c4b9/FLAG01ee0c4ab [2020-10-23 23:57:54,018 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:57:54,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-10-23 23:57:54,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c02d76ef/d992634baeee40c2858fc0493e07c4b9/FLAG01ee0c4ab [2020-10-23 23:57:54,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c02d76ef/d992634baeee40c2858fc0493e07c4b9 [2020-10-23 23:57:54,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:57:54,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:57:54,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:57:54,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:57:54,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:57:54,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:54,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44165c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54, skipping insertion in model container [2020-10-23 23:57:54,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:54,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:57:54,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:57:54,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:57:54,762 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:57:54,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:57:54,969 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:57:54,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54 WrapperNode [2020-10-23 23:57:54,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:57:54,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:57:54,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:57:54,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:57:54,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:54,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:55,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:55,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:55,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:55,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:55,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... [2020-10-23 23:57:55,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:57:55,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:57:55,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:57:55,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:57:55,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-23 23:57:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:57:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:57:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:57:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:57:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:57:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:57:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:57:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:57:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:57:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:57:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:57:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:57:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:57:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:57:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:57:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 23:57:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:57:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:57:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:57:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:57:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:57:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:57:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:57:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:57:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:57:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:57:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:57:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:57:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:57:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:57:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:57:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:57:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:57:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:57:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:57:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:57:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:57:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:57:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:57:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:57:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:57:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:57:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:57:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:57:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:57:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:57:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:57:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:57:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:57:55,204 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:57:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:57:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:57:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:57:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:57:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:57:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 23:57:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:57:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:57:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:57:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:57:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:57:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:57:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:57:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:57:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:57:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:57:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:57:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:57:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:57:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:57:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:57:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:57:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:57:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:57:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 23:57:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 23:57:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:57:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:57:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 23:57:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:57:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:57:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:57:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:57:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:57:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:57:57,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:57:57,112 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:57:57,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:57:57 BoogieIcfgContainer [2020-10-23 23:57:57,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:57:57,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:57:57,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:57:57,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:57:57,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:57:54" (1/3) ... [2020-10-23 23:57:57,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f5a8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:57:57, skipping insertion in model container [2020-10-23 23:57:57,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:57:54" (2/3) ... [2020-10-23 23:57:57,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f5a8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:57:57, skipping insertion in model container [2020-10-23 23:57:57,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:57:57" (3/3) ... [2020-10-23 23:57:57,125 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-10-23 23:57:57,138 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:57:57,144 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:57:57,159 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:57:57,185 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:57:57,186 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:57:57,186 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:57:57,186 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:57:57,186 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:57:57,186 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:57:57,186 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:57:57,186 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:57:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-10-23 23:57:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 23:57:57,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:57:57,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:57:57,232 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]=== [2020-10-23 23:57:57,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:57:57,238 INFO L82 PathProgramCache]: Analyzing trace with hash -95440502, now seen corresponding path program 1 times [2020-10-23 23:57:57,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:57:57,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710146707] [2020-10-23 23:57:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:57:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,499 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:57:58,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:57:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:57:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:57:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:57:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:57:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:57:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:57:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:57:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:57:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:57:58,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710146707] [2020-10-23 23:57:58,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:57:58,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:57:58,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919493950] [2020-10-23 23:57:58,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:57:58,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:57:58,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:57:58,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:57:58,696 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 3 states. [2020-10-23 23:58:01,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:01,395 INFO L93 Difference]: Finished difference Result 454 states and 538 transitions. [2020-10-23 23:58:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:58:01,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 23:58:01,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:01,441 INFO L225 Difference]: With dead ends: 454 [2020-10-23 23:58:01,441 INFO L226 Difference]: Without dead ends: 285 [2020-10-23 23:58:01,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:58:01,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-23 23:58:01,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 245. [2020-10-23 23:58:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-23 23:58:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2020-10-23 23:58:01,657 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 159 [2020-10-23 23:58:01,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:01,659 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2020-10-23 23:58:01,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:58:01,660 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2020-10-23 23:58:01,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 23:58:01,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:01,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:01,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:58:01,681 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]=== [2020-10-23 23:58:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:01,682 INFO L82 PathProgramCache]: Analyzing trace with hash 787652111, now seen corresponding path program 1 times [2020-10-23 23:58:01,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:01,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607588915] [2020-10-23 23:58:01,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,709 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:02,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 23:58:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:58:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:58:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:02,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607588915] [2020-10-23 23:58:02,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:02,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:58:02,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993005809] [2020-10-23 23:58:02,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:58:02,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:02,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:58:02,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:58:02,823 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 4 states. [2020-10-23 23:58:04,380 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:58:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:06,111 INFO L93 Difference]: Finished difference Result 364 states and 405 transitions. [2020-10-23 23:58:06,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:58:06,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 23:58:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:06,119 INFO L225 Difference]: With dead ends: 364 [2020-10-23 23:58:06,119 INFO L226 Difference]: Without dead ends: 268 [2020-10-23 23:58:06,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:58:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-10-23 23:58:06,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 235. [2020-10-23 23:58:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-10-23 23:58:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 250 transitions. [2020-10-23 23:58:06,232 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 250 transitions. Word has length 160 [2020-10-23 23:58:06,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:06,233 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 250 transitions. [2020-10-23 23:58:06,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:58:06,233 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 250 transitions. [2020-10-23 23:58:06,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 23:58:06,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:06,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:06,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:58:06,236 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]=== [2020-10-23 23:58:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:06,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1931807180, now seen corresponding path program 1 times [2020-10-23 23:58:06,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:06,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728012000] [2020-10-23 23:58:06,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,124 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:58:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:58:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:58:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 23:58:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:07,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728012000] [2020-10-23 23:58:07,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:07,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:58:07,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361117718] [2020-10-23 23:58:07,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:58:07,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:07,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:58:07,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:58:07,485 INFO L87 Difference]: Start difference. First operand 235 states and 250 transitions. Second operand 10 states. [2020-10-23 23:58:08,765 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:09,851 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:58:10,774 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:58:11,713 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:12,629 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:58:13,569 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:16,642 INFO L93 Difference]: Finished difference Result 410 states and 467 transitions. [2020-10-23 23:58:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:58:16,643 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 23:58:16,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:16,647 INFO L225 Difference]: With dead ends: 410 [2020-10-23 23:58:16,647 INFO L226 Difference]: Without dead ends: 290 [2020-10-23 23:58:16,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:58:16,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-23 23:58:16,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 235. [2020-10-23 23:58:16,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-10-23 23:58:16,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 249 transitions. [2020-10-23 23:58:16,767 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 249 transitions. Word has length 173 [2020-10-23 23:58:16,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:16,768 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 249 transitions. [2020-10-23 23:58:16,768 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:58:16,768 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 249 transitions. [2020-10-23 23:58:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 23:58:16,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:16,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:16,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:58:16,772 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]=== [2020-10-23 23:58:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:16,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1523518393, now seen corresponding path program 1 times [2020-10-23 23:58:16,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:16,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45417269] [2020-10-23 23:58:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,697 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:17,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 23:58:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:58:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 23:58:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 23:58:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-23 23:58:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:17,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45417269] [2020-10-23 23:58:17,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:17,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:58:17,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010829748] [2020-10-23 23:58:17,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:58:17,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:17,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:58:17,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:58:17,953 INFO L87 Difference]: Start difference. First operand 235 states and 249 transitions. Second operand 10 states. [2020-10-23 23:58:19,372 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:23,089 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:24,143 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:58:25,220 WARN L193 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:26,349 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:58:27,244 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:28,170 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:29,179 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:58:31,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:31,669 INFO L93 Difference]: Finished difference Result 632 states and 774 transitions. [2020-10-23 23:58:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 23:58:31,670 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-10-23 23:58:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:31,677 INFO L225 Difference]: With dead ends: 632 [2020-10-23 23:58:31,677 INFO L226 Difference]: Without dead ends: 512 [2020-10-23 23:58:31,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-23 23:58:31,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-10-23 23:58:31,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 346. [2020-10-23 23:58:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-23 23:58:31,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 377 transitions. [2020-10-23 23:58:31,861 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 377 transitions. Word has length 181 [2020-10-23 23:58:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:31,862 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 377 transitions. [2020-10-23 23:58:31,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:58:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 377 transitions. [2020-10-23 23:58:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-23 23:58:31,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:31,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:31,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:58:31,866 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]=== [2020-10-23 23:58:31,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:31,867 INFO L82 PathProgramCache]: Analyzing trace with hash -651110503, now seen corresponding path program 1 times [2020-10-23 23:58:31,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:31,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586099948] [2020-10-23 23:58:31,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,737 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:58:32,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:58:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:58:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:58:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:58:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:58:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 23:58:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:58:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:58:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 23:58:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:58:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 23:58:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-23 23:58:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:58:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:58:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:58:32,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586099948] [2020-10-23 23:58:32,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:58:32,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 23:58:32,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445094115] [2020-10-23 23:58:32,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 23:58:32,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:58:32,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 23:58:32,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:58:32,959 INFO L87 Difference]: Start difference. First operand 346 states and 377 transitions. Second operand 7 states. [2020-10-23 23:58:34,347 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:58:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:58:36,418 INFO L93 Difference]: Finished difference Result 569 states and 657 transitions. [2020-10-23 23:58:36,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:58:36,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-10-23 23:58:36,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:58:36,424 INFO L225 Difference]: With dead ends: 569 [2020-10-23 23:58:36,425 INFO L226 Difference]: Without dead ends: 338 [2020-10-23 23:58:36,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:58:36,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-10-23 23:58:36,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 272. [2020-10-23 23:58:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-23 23:58:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 287 transitions. [2020-10-23 23:58:36,517 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 287 transitions. Word has length 191 [2020-10-23 23:58:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:58:36,518 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 287 transitions. [2020-10-23 23:58:36,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 23:58:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 287 transitions. [2020-10-23 23:58:36,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-23 23:58:36,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:58:36,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:58:36,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:58:36,521 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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]=== [2020-10-23 23:58:36,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:58:36,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1104912285, now seen corresponding path program 1 times [2020-10-23 23:58:36,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:58:36,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595311655] [2020-10-23 23:58:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:58:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:58:36,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:58:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:58:36,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:58:36,875 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:58:36,875 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:58:36,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:58:37,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:58:37 BoogieIcfgContainer [2020-10-23 23:58:37,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:58:37,158 INFO L168 Benchmark]: Toolchain (without parser) took 42814.90 ms. Allocated memory was 162.5 MB in the beginning and 343.9 MB in the end (delta: 181.4 MB). Free memory was 138.5 MB in the beginning and 234.2 MB in the end (delta: -95.7 MB). Peak memory consumption was 86.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:37,159 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 101.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:58:37,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.97 ms. Allocated memory is still 162.5 MB. Free memory was 137.9 MB in the beginning and 116.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:37,163 INFO L168 Benchmark]: Boogie Preprocessor took 120.70 ms. Allocated memory is still 162.5 MB. Free memory was 116.9 MB in the beginning and 144.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:37,164 INFO L168 Benchmark]: RCFGBuilder took 2022.16 ms. Allocated memory is still 162.5 MB. Free memory was 144.9 MB in the beginning and 137.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 59.6 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:37,164 INFO L168 Benchmark]: TraceAbstraction took 40038.48 ms. Allocated memory was 162.5 MB in the beginning and 343.9 MB in the end (delta: 181.4 MB). Free memory was 137.0 MB in the beginning and 234.2 MB in the end (delta: -97.2 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:58:37,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 101.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 614.97 ms. Allocated memory is still 162.5 MB. Free memory was 137.9 MB in the beginning and 116.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 120.70 ms. Allocated memory is still 162.5 MB. Free memory was 116.9 MB in the beginning and 144.9 MB in the end (delta: -28.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2022.16 ms. Allocated memory is still 162.5 MB. Free memory was 144.9 MB in the beginning and 137.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 59.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 40038.48 ms. Allocated memory was 162.5 MB in the beginning and 343.9 MB in the end (delta: 181.4 MB). Free memory was 137.0 MB in the beginning and 234.2 MB in the end (delta: -97.2 MB). Peak memory consumption was 83.7 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: [L42] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=142, cleanupTimeShifts=4, head={182:168}, methaneLevelCritical=146, pumpRunning=134, systemActive=133, waterLevel=142] [L151] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=142, cleanupTimeShifts=4, head={182:168}, methaneLevelCritical=146, pumpRunning=134, systemActive=133, waterLevel=1] [L152] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=142, cleanupTimeShifts=4, head={182:168}, methaneLevelCritical=0, pumpRunning=134, systemActive=133, waterLevel=1] [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=134, systemActive=133, waterLevel=1] [L610] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=133, waterLevel=1] [L611] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=146, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L124] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L129] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L868] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L130] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L130] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L132] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L134] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L135] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L114] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L772] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L774] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L775] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L779] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L781] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L783] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L789] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L791] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L793] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L793] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L799] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L801] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L809] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L811] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L813] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L813] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L826] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L627] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L647] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L650] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L627] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L633] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L877] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L881] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L190] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L193] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L194] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L881] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L881] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L883] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L887] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L222] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L225] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L226] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L887] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L887] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L889] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L891] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L699] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L703] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L891] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L891] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L893] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L897] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L912] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product18.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 626 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 32.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1088 SDtfs, 2000 SDslu, 1477 SDs, 0 SdLazy, 2709 SolverSat, 580 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 18.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred 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: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 360 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 1050 NumberOfCodeBlocks, 1050 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 859 ConstructedInterpolants, 0 QuantifiedInterpolants, 368076 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...