/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:23:43,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:23:43,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:23:43,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:23:43,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:23:43,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:23:43,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:23:43,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:23:43,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:23:43,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:23:43,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:23:43,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:23:43,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:23:43,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:23:43,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:23:43,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:23:43,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:23:43,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:23:43,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:23:43,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:23:43,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:23:43,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:23:43,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:23:43,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:23:43,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:23:43,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:23:43,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:23:43,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:23:43,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:23:43,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:23:43,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:23:43,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:23:43,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:23:43,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:23:43,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:23:43,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:23:43,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:23:43,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:23:43,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:23:43,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:23:43,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:23:43,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:23:43,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:23:43,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:23:43,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:23:43,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:23:43,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:23:43,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:23:43,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:23:43,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:23:43,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:23:43,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:23:43,838 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:23:43,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:23:43,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:23:43,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:23:43,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:23:43,839 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:23:43,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:23:43,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:23:43,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:23:43,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:23:43,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:23:43,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:23:43,841 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:23:44,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:23:44,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:23:44,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:23:44,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:23:44,341 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:23:44,342 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-09-04 15:23:44,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7de335f33/0eea4bd537234a898041841535e4ec95/FLAGfe0de74aa [2020-09-04 15:23:45,068 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:23:45,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-09-04 15:23:45,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7de335f33/0eea4bd537234a898041841535e4ec95/FLAGfe0de74aa [2020-09-04 15:23:45,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7de335f33/0eea4bd537234a898041841535e4ec95 [2020-09-04 15:23:45,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:23:45,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:23:45,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:23:45,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:23:45,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:23:45,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:23:45" (1/1) ... [2020-09-04 15:23:45,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:45, skipping insertion in model container [2020-09-04 15:23:45,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:23:45" (1/1) ... [2020-09-04 15:23:45,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:23:45,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:23:45,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:23:46,005 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:23:46,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:23:46,129 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:23:46,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46 WrapperNode [2020-09-04 15:23:46,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:23:46,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:23:46,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:23:46,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:23:46,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... [2020-09-04 15:23:46,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... [2020-09-04 15:23:46,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... [2020-09-04 15:23:46,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... [2020-09-04 15:23:46,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... [2020-09-04 15:23:46,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... [2020-09-04 15:23:46,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... [2020-09-04 15:23:46,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:23:46,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:23:46,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:23:46,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:23:46,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:23:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:23:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:23:46,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:23:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:23:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:23:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:23:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:23:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:23:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:23:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:23:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:23:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:23:46,321 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:23:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:23:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:23:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:23:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 15:23:46,322 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:23:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:23:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:23:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:23:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:23:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:23:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:23:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:23:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:23:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 15:23:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:23:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:23:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:23:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:23:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:23:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:23:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:23:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:23:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:23:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:23:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:23:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:23:46,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:23:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:23:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:23:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:23:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:23:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:23:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:23:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:23:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:23:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:23:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:23:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 15:23:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:23:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:23:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:23:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:23:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:23:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:23:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:23:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:23:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:23:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:23:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 15:23:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-04 15:23:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:23:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:23:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:23:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:23:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:23:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:23:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:23:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:23:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:23:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:23:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:23:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:23:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:23:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:23:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:23:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:23:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:23:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:23:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:23:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:23:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:23:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:23:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:23:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:23:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:23:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:23:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:23:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:23:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:23:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:23:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:23:47,576 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:23:47,576 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:23:47,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:23:47 BoogieIcfgContainer [2020-09-04 15:23:47,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:23:47,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:23:47,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:23:47,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:23:47,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:23:45" (1/3) ... [2020-09-04 15:23:47,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f172b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:23:47, skipping insertion in model container [2020-09-04 15:23:47,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:23:46" (2/3) ... [2020-09-04 15:23:47,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f172b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:23:47, skipping insertion in model container [2020-09-04 15:23:47,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:23:47" (3/3) ... [2020-09-04 15:23:47,594 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-09-04 15:23:47,607 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:23:47,619 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:23:47,643 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:23:47,674 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:23:47,675 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:23:47,675 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:23:47,675 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:23:47,675 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:23:47,675 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:23:47,676 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:23:47,676 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:23:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-09-04 15:23:47,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:23:47,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:47,731 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] [2020-09-04 15:23:47,731 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:47,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times [2020-09-04 15:23:47,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:47,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73759994] [2020-09-04 15:23:47,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:47,851 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,577 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:48,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:23:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:23:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:23:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:48,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73759994] [2020-09-04 15:23:48,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:48,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:23:48,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303810846] [2020-09-04 15:23:48,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:23:48,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:48,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:23:48,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:23:48,817 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-09-04 15:23:50,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:50,215 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-04 15:23:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:23:50,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:23:50,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:50,240 INFO L225 Difference]: With dead ends: 458 [2020-09-04 15:23:50,240 INFO L226 Difference]: Without dead ends: 287 [2020-09-04 15:23:50,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:23:50,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-04 15:23:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-04 15:23:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-04 15:23:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-04 15:23:50,395 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-04 15:23:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:50,396 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-04 15:23:50,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:23:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-04 15:23:50,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:23:50,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:50,402 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] [2020-09-04 15:23:50,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:23:50,402 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:50,403 INFO L82 PathProgramCache]: Analyzing trace with hash 319840535, now seen corresponding path program 1 times [2020-09-04 15:23:50,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:50,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730423404] [2020-09-04 15:23:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:50,407 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,821 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:50,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:23:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:23:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:23:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:50,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730423404] [2020-09-04 15:23:50,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:50,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:23:50,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256575402] [2020-09-04 15:23:50,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:23:50,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:50,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:23:50,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:23:50,913 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-04 15:23:51,572 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:23:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:52,456 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-04 15:23:52,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:23:52,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:23:52,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:52,464 INFO L225 Difference]: With dead ends: 365 [2020-09-04 15:23:52,464 INFO L226 Difference]: Without dead ends: 270 [2020-09-04 15:23:52,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 15:23:52,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-04 15:23:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-04 15:23:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-04 15:23:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-04 15:23:52,563 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-04 15:23:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:52,564 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-04 15:23:52,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:23:52,564 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-04 15:23:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:23:52,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:52,567 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] [2020-09-04 15:23:52,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:23:52,568 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:52,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:52,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2018801783, now seen corresponding path program 1 times [2020-09-04 15:23:52,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:52,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924252073] [2020-09-04 15:23:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:52,572 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:52,961 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:52,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:23:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:23:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:23:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:23:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:53,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924252073] [2020-09-04 15:23:53,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:53,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:23:53,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891505889] [2020-09-04 15:23:53,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:23:53,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:53,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:23:53,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:23:53,118 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states. [2020-09-04 15:23:53,593 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:23:53,990 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:23:54,301 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:23:54,647 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:54,946 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:23:55,238 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:23:56,293 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:23:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:23:58,682 INFO L93 Difference]: Finished difference Result 647 states and 752 transitions. [2020-09-04 15:23:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:23:58,683 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:23:58,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:23:58,689 INFO L225 Difference]: With dead ends: 647 [2020-09-04 15:23:58,689 INFO L226 Difference]: Without dead ends: 522 [2020-09-04 15:23:58,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 15:23:58,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-09-04 15:23:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 431. [2020-09-04 15:23:58,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-04 15:23:58,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 480 transitions. [2020-09-04 15:23:58,870 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 480 transitions. Word has length 167 [2020-09-04 15:23:58,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:23:58,871 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 480 transitions. [2020-09-04 15:23:58,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:23:58,871 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 480 transitions. [2020-09-04 15:23:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:23:58,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:23:58,875 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] [2020-09-04 15:23:58,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:23:58,875 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:23:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:23:58,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1851726168, now seen corresponding path program 1 times [2020-09-04 15:23:58,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:23:58,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978602235] [2020-09-04 15:23:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:23:58,879 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:23:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,259 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:23:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:23:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:23:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:23:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:23:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:23:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:23:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:23:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:23:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:23:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:23:59,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:23:59,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978602235] [2020-09-04 15:23:59,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:23:59,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:23:59,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021514814] [2020-09-04 15:23:59,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:23:59,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:23:59,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:23:59,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:23:59,443 INFO L87 Difference]: Start difference. First operand 431 states and 480 transitions. Second operand 9 states. [2020-09-04 15:24:00,001 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:01,999 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:02,328 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:02,734 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:03,124 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:03,445 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:03,749 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:04,068 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:04,967 INFO L93 Difference]: Finished difference Result 1151 states and 1381 transitions. [2020-09-04 15:24:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:24:04,968 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:24:04,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:04,977 INFO L225 Difference]: With dead ends: 1151 [2020-09-04 15:24:04,977 INFO L226 Difference]: Without dead ends: 830 [2020-09-04 15:24:04,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:24:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-09-04 15:24:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 731. [2020-09-04 15:24:05,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-09-04 15:24:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 837 transitions. [2020-09-04 15:24:05,265 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 837 transitions. Word has length 172 [2020-09-04 15:24:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:05,266 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 837 transitions. [2020-09-04 15:24:05,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:24:05,266 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 837 transitions. [2020-09-04 15:24:05,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:24:05,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:05,271 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] [2020-09-04 15:24:05,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:24:05,272 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:05,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:05,272 INFO L82 PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times [2020-09-04 15:24:05,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:05,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842681922] [2020-09-04 15:24:05,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:05,275 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:05,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:05,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:05,631 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:24:05,632 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:24:05,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:24:05,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:24:05 BoogieIcfgContainer [2020-09-04 15:24:05,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:24:05,664 INFO L168 Benchmark]: Toolchain (without parser) took 20315.25 ms. Allocated memory was 146.3 MB in the beginning and 533.7 MB in the end (delta: 387.4 MB). Free memory was 101.1 MB in the beginning and 121.1 MB in the end (delta: -20.0 MB). Peak memory consumption was 367.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:05,665 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:24:05,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.25 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.9 MB in the beginning and 173.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:05,666 INFO L168 Benchmark]: Boogie Preprocessor took 102.87 ms. Allocated memory is still 205.0 MB. Free memory was 173.0 MB in the beginning and 169.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:05,667 INFO L168 Benchmark]: RCFGBuilder took 1350.45 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.0 MB in the beginning and 176.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:05,668 INFO L168 Benchmark]: TraceAbstraction took 18076.16 ms. Allocated memory was 237.0 MB in the beginning and 533.7 MB in the end (delta: 296.7 MB). Free memory was 176.6 MB in the beginning and 121.1 MB in the end (delta: 55.4 MB). Peak memory consumption was 352.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:05,672 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 780.25 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.9 MB in the beginning and 173.0 MB in the end (delta: -72.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.87 ms. Allocated memory is still 205.0 MB. Free memory was 173.0 MB in the beginning and 169.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1350.45 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.0 MB in the beginning and 176.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18076.16 ms. Allocated memory was 237.0 MB in the beginning and 533.7 MB in the end (delta: 296.7 MB). Free memory was 176.6 MB in the beginning and 121.1 MB in the end (delta: 55.4 MB). Peak memory consumption was 352.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L356] int waterLevel = 1; [L357] int methaneLevelCritical = 0; [L445] int cleanupTimeShifts = 4; [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L287] int splverifierCounter ; [L288] int tmp ; [L289] int tmp___0 ; [L290] int tmp___1 ; [L291] int tmp___2 ; [L294] splverifierCounter = 0 [L296] COND TRUE 1 [L298] COND TRUE splverifierCounter < 4 [L304] tmp = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp) [L308] CALL waterRise() [L374] COND TRUE waterLevel < 2 [L375] waterLevel = waterLevel + 1 [L308] RET waterRise() [L314] tmp___0 = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp___0)) [L324] tmp___2 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___2)) [L332] tmp___1 = __VERIFIER_nondet_int() [L334] COND TRUE \read(tmp___1) [L336] CALL stopSystem() [L263] COND FALSE !(\read(pumpRunning)) [L270] systemActive = 0 [L336] RET stopSystem() [L343] CALL timeShift() [L97] COND FALSE !(\read(pumpRunning)) [L104] COND FALSE !(\read(systemActive)) [L112] CALL __utac_acc__Specification3_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L557] CALL, EXPR isMethaneLevelCritical() [L395] int retValue_acc ; [L398] retValue_acc = methaneLevelCritical [L399] return (retValue_acc); [L557] RET, EXPR isMethaneLevelCritical() [L557] tmp = isMethaneLevelCritical() [L559] COND FALSE !(\read(tmp)) [L563] CALL, EXPR getWaterLevel() [L427] int retValue_acc ; [L430] retValue_acc = waterLevel [L431] return (retValue_acc); [L563] RET, EXPR getWaterLevel() [L563] tmp___0 = getWaterLevel() [L565] COND TRUE tmp___0 == 2 [L567] CALL, EXPR isPumpRunning() [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); [L567] RET, EXPR isPumpRunning() [L567] tmp___1 = isPumpRunning() [L569] COND FALSE !(\read(tmp___1)) [L573] CALL __automaton_fail() [L545] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 952 SDtfs, 1387 SDslu, 1400 SDs, 0 SdLazy, 2905 SolverSat, 480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred 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, 4 MinimizatonAttempts, 267 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...