/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_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:05:37,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:05:37,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:05:37,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:05:37,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:05:37,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:05:37,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:05:37,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:05:37,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:05:37,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:05:37,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:05:37,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:05:37,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:05:37,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:05:37,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:05:37,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:05:37,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:05:37,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:05:37,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:05:37,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:05:37,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:05:37,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:05:37,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:05:37,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:05:37,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:05:37,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:05:37,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:05:37,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:05:37,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:05:37,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:05:37,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:05:37,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:05:37,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:05:37,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:05:37,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:05:37,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:05:37,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:05:37,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:05:37,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:05:38,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:05:38,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:05:38,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:05:38,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:05:38,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:05:38,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:05:38,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:05:38,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:05:38,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:05:38,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:05:38,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:05:38,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:05:38,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:05:38,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:05:38,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:05:38,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:05:38,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:05:38,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:05:38,028 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:05:38,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:05:38,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:05:38,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:05:38,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:05:38,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:05:38,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:05:38,031 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:05:38,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:05:38,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:05:38,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:05:38,357 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:05:38,358 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:05:38,359 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-08-22 18:05:38,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a44b78e/5df3f9f389744038bb108808761c7c41/FLAGf3153def7 [2020-08-22 18:05:38,943 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:05:38,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-08-22 18:05:38,956 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a44b78e/5df3f9f389744038bb108808761c7c41/FLAGf3153def7 [2020-08-22 18:05:39,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a44b78e/5df3f9f389744038bb108808761c7c41 [2020-08-22 18:05:39,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:05:39,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:05:39,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:39,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:05:39,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:05:39,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:39,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca632cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39, skipping insertion in model container [2020-08-22 18:05:39,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:39,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:05:39,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:05:39,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:39,795 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:05:39,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:05:39,936 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:05:39,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39 WrapperNode [2020-08-22 18:05:39,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:05:39,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:05:39,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:05:39,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:05:39,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:39,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:39,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:39,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:40,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:40,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:40,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (1/1) ... [2020-08-22 18:05:40,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:05:40,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:05:40,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:05:40,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:05:40,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (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 [2020-08-22 18:05:40,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:05:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:05:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:05:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:05:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:05:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:05:40,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:05:40,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:40,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:05:40,135 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:05:40,136 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:05:40,136 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:05:40,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:05:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:05:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:05:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:05:40,137 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:05:40,138 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:05:40,138 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:05:40,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:05:40,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:05:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:05:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:05:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:05:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:05:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:05:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:05:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:05:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:05:40,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:05:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:05:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:05:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:05:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:05:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:05:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:05:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:05:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:05:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:05:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:05:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:05:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:05:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:05:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:05:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:05:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:05:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:05:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:05:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:05:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:05:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:05:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:05:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:05:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:05:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:05:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:05:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:05:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:05:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:05:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:05:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:05:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:05:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:05:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:05:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:05:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:05:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:05:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:05:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:05:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:05:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:05:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:05:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:05:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:05:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:05:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:05:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:05:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:05:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 18:05:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:05:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:05:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:05:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:05:41,189 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:05:41,190 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:05:41,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:41 BoogieIcfgContainer [2020-08-22 18:05:41,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:05:41,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:05:41,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:05:41,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:05:41,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:05:39" (1/3) ... [2020-08-22 18:05:41,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2341c6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:41, skipping insertion in model container [2020-08-22 18:05:41,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:05:39" (2/3) ... [2020-08-22 18:05:41,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2341c6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:05:41, skipping insertion in model container [2020-08-22 18:05:41,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:05:41" (3/3) ... [2020-08-22 18:05:41,205 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-08-22 18:05:41,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:05:41,223 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:05:41,234 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:05:41,256 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:05:41,256 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:05:41,256 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:05:41,256 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:05:41,257 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:05:41,257 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:05:41,257 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:05:41,257 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:05:41,278 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-08-22 18:05:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:05:41,300 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:41,301 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] [2020-08-22 18:05:41,302 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:41,308 INFO L82 PathProgramCache]: Analyzing trace with hash -266008754, now seen corresponding path program 1 times [2020-08-22 18:05:41,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:41,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863951681] [2020-08-22 18:05:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:41,390 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,015 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:42,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:05:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:05:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:05:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:42,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863951681] [2020-08-22 18:05:42,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:42,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:05:42,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764219762] [2020-08-22 18:05:42,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:05:42,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:42,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:05:42,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:42,261 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states. [2020-08-22 18:05:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:43,647 INFO L93 Difference]: Finished difference Result 506 states and 598 transitions. [2020-08-22 18:05:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:05:43,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:05:43,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:43,671 INFO L225 Difference]: With dead ends: 506 [2020-08-22 18:05:43,671 INFO L226 Difference]: Without dead ends: 312 [2020-08-22 18:05:43,678 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 [2020-08-22 18:05:43,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-08-22 18:05:43,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-08-22 18:05:43,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-08-22 18:05:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-08-22 18:05:43,852 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 153 [2020-08-22 18:05:43,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:43,853 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-08-22 18:05:43,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:05:43,854 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-08-22 18:05:43,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:05:43,859 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:43,859 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] [2020-08-22 18:05:43,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:05:43,860 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:43,860 INFO L82 PathProgramCache]: Analyzing trace with hash 579021377, now seen corresponding path program 1 times [2020-08-22 18:05:43,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:43,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841281117] [2020-08-22 18:05:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:43,865 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,283 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:44,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:05:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:05:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:05:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:44,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841281117] [2020-08-22 18:05:44,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:44,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:05:44,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824701535] [2020-08-22 18:05:44,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:05:44,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:44,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:05:44,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:05:44,359 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 4 states. [2020-08-22 18:05:44,959 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:45,914 INFO L93 Difference]: Finished difference Result 410 states and 459 transitions. [2020-08-22 18:05:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:05:45,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:05:45,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:45,920 INFO L225 Difference]: With dead ends: 410 [2020-08-22 18:05:45,920 INFO L226 Difference]: Without dead ends: 295 [2020-08-22 18:05:45,922 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 [2020-08-22 18:05:45,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-08-22 18:05:46,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 258. [2020-08-22 18:05:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-08-22 18:05:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions. [2020-08-22 18:05:46,027 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 154 [2020-08-22 18:05:46,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:46,030 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions. [2020-08-22 18:05:46,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:05:46,030 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions. [2020-08-22 18:05:46,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:05:46,034 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:46,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:46,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:05:46,035 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:46,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:46,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1537433841, now seen corresponding path program 1 times [2020-08-22 18:05:46,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:46,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868909444] [2020-08-22 18:05:46,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:46,039 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,409 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:46,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:05:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 18:05:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 18:05:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 18:05:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:46,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868909444] [2020-08-22 18:05:46,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:46,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:05:46,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479409611] [2020-08-22 18:05:46,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:05:46,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:46,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:05:46,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:05:46,600 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 10 states. [2020-08-22 18:05:47,110 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:47,512 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:05:47,824 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:05:48,229 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:48,452 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:48,669 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:49,608 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:51,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:51,969 INFO L93 Difference]: Finished difference Result 720 states and 831 transitions. [2020-08-22 18:05:51,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:05:51,969 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 18:05:51,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:51,975 INFO L225 Difference]: With dead ends: 720 [2020-08-22 18:05:51,975 INFO L226 Difference]: Without dead ends: 572 [2020-08-22 18:05:51,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:05:51,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-08-22 18:05:52,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 465. [2020-08-22 18:05:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-08-22 18:05:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 514 transitions. [2020-08-22 18:05:52,183 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 514 transitions. Word has length 167 [2020-08-22 18:05:52,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:52,184 INFO L479 AbstractCegarLoop]: Abstraction has 465 states and 514 transitions. [2020-08-22 18:05:52,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:05:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 514 transitions. [2020-08-22 18:05:52,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:05:52,191 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:52,191 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] [2020-08-22 18:05:52,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:05:52,191 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:52,192 INFO L82 PathProgramCache]: Analyzing trace with hash 868861772, now seen corresponding path program 1 times [2020-08-22 18:05:52,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:52,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167517422] [2020-08-22 18:05:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:52,195 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,500 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:52,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:05:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:05:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:05:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:05:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:05:52,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167517422] [2020-08-22 18:05:52,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:52,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:05:52,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628417372] [2020-08-22 18:05:52,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:05:52,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:52,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:05:52,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:05:52,664 INFO L87 Difference]: Start difference. First operand 465 states and 514 transitions. Second operand 9 states. [2020-08-22 18:05:53,112 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:54,716 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:54,969 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:55,288 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:55,570 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:55,804 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:56,048 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:56,285 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:57,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:57,300 INFO L93 Difference]: Finished difference Result 1257 states and 1493 transitions. [2020-08-22 18:05:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:05:57,300 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:05:57,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:57,311 INFO L225 Difference]: With dead ends: 1257 [2020-08-22 18:05:57,311 INFO L226 Difference]: Without dead ends: 902 [2020-08-22 18:05:57,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:05:57,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-08-22 18:05:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 799. [2020-08-22 18:05:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2020-08-22 18:05:57,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 903 transitions. [2020-08-22 18:05:57,558 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 903 transitions. Word has length 172 [2020-08-22 18:05:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:57,558 INFO L479 AbstractCegarLoop]: Abstraction has 799 states and 903 transitions. [2020-08-22 18:05:57,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:05:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 903 transitions. [2020-08-22 18:05:57,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:05:57,563 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:57,563 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] [2020-08-22 18:05:57,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:05:57,563 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:57,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:57,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1844704864, now seen corresponding path program 1 times [2020-08-22 18:05:57,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:57,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856778131] [2020-08-22 18:05:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:57,567 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:05:57,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:05:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:05:57,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:05:57,840 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:05:57,840 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:05:57,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:05:57,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:05:57 BoogieIcfgContainer [2020-08-22 18:05:57,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:05:57,866 INFO L168 Benchmark]: Toolchain (without parser) took 18547.50 ms. Allocated memory was 141.6 MB in the beginning and 585.1 MB in the end (delta: 443.5 MB). Free memory was 101.5 MB in the beginning and 185.3 MB in the end (delta: -83.7 MB). Peak memory consumption was 359.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:57,867 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:05:57,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.56 ms. Allocated memory was 141.6 MB in the beginning and 202.9 MB in the end (delta: 61.3 MB). Free memory was 101.3 MB in the beginning and 170.0 MB in the end (delta: -68.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:57,869 INFO L168 Benchmark]: Boogie Preprocessor took 118.71 ms. Allocated memory is still 202.9 MB. Free memory was 170.0 MB in the beginning and 166.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:57,870 INFO L168 Benchmark]: RCFGBuilder took 1139.66 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 175.2 MB in the end (delta: -9.2 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:57,871 INFO L168 Benchmark]: TraceAbstraction took 16666.81 ms. Allocated memory was 236.5 MB in the beginning and 585.1 MB in the end (delta: 348.7 MB). Free memory was 173.8 MB in the beginning and 185.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 337.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:57,874 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 614.56 ms. Allocated memory was 141.6 MB in the beginning and 202.9 MB in the end (delta: 61.3 MB). Free memory was 101.3 MB in the beginning and 170.0 MB in the end (delta: -68.7 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.71 ms. Allocated memory is still 202.9 MB. Free memory was 170.0 MB in the beginning and 166.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1139.66 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 175.2 MB in the end (delta: -9.2 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16666.81 ms. Allocated memory was 236.5 MB in the beginning and 585.1 MB in the end (delta: 348.7 MB). Free memory was 173.8 MB in the beginning and 185.3 MB in the end (delta: -11.5 MB). Peak memory consumption was 337.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] splverifierCounter = 0 [L896] COND TRUE 1 [L898] COND TRUE splverifierCounter < 4 [L904] tmp = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp) [L908] CALL waterRise() [L203] COND TRUE waterLevel < 2 [L204] waterLevel = waterLevel + 1 [L908] RET waterRise() [L914] tmp___0 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___0)) [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] COND TRUE \read(tmp___1) [L936] CALL stopSystem() [L866] COND FALSE !(\read(pumpRunning)) [L873] systemActive = 0 [L936] RET stopSystem() [L943] CALL timeShift() [L700] COND FALSE !(\read(pumpRunning)) [L707] COND FALSE !(\read(systemActive)) [L715] CALL __utac_acc__Specification3_spec__1() [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L155] CALL, EXPR isMethaneLevelCritical() [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] return (retValue_acc); [L155] RET, EXPR isMethaneLevelCritical() [L155] tmp = isMethaneLevelCritical() [L157] COND FALSE !(\read(tmp)) [L161] CALL, EXPR getWaterLevel() [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] return (retValue_acc); [L161] RET, EXPR getWaterLevel() [L161] tmp___0 = getWaterLevel() [L163] COND TRUE tmp___0 == 2 [L165] CALL, EXPR isPumpRunning() [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] return (retValue_acc); [L165] RET, EXPR isPumpRunning() [L165] tmp___1 = isPumpRunning() [L167] COND FALSE !(\read(tmp___1)) [L171] CALL __automaton_fail() [L318] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1032 SDtfs, 1571 SDslu, 1414 SDs, 0 SdLazy, 3218 SolverSat, 547 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=799occurred 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: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 291 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...