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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:57,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:57,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:57,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:57,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:57,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:57,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:57,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:57,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:57,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:57,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:57,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:57,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:57,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:57,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:57,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:57,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:57,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:57,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:57,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:57,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:57,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:57,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:57,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:57,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:57,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:57,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:57,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:57,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:57,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:57,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:57,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:57,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:57,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:57,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:57,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:57,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:57,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:57,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:57,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:57,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:57,265 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:57,280 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:57,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:57,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:57,281 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:57,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:57,281 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:57,282 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:57,282 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:57,282 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:57,282 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:57,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:57,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:57,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:57,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:57,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:57,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:57,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:57,284 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:57,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:57,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:57,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:57,285 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:57,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:57,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:57,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:57,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:57,286 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:57,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:57,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:57,287 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:57,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:57,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:57,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:57,332 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:57,332 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:57,333 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2019-09-20 13:29:57,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79153e25b/438b46ac11f84c0ea333376cff9e125f/FLAGc8d892214 [2019-09-20 13:29:57,942 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:57,943 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2019-09-20 13:29:57,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79153e25b/438b46ac11f84c0ea333376cff9e125f/FLAGc8d892214 [2019-09-20 13:29:58,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79153e25b/438b46ac11f84c0ea333376cff9e125f [2019-09-20 13:29:58,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:58,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:58,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:58,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:58,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:58,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2e4757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58, skipping insertion in model container [2019-09-20 13:29:58,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,205 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:58,271 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:58,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:58,743 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:58,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:58,902 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:58,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58 WrapperNode [2019-09-20 13:29:58,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:58,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:58,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:58,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:58,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:59,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:59,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:59,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:59,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:59,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:59,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:59,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (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 [2019-09-20 13:29:59,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:29:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:59,135 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:59,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:59,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:59,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:59,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:29:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:00,326 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:00,326 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:00,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:00 BoogieIcfgContainer [2019-09-20 13:30:00,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:00,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:00,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:00,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:00,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:58" (1/3) ... [2019-09-20 13:30:00,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ad5685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:00, skipping insertion in model container [2019-09-20 13:30:00,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58" (2/3) ... [2019-09-20 13:30:00,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ad5685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:00, skipping insertion in model container [2019-09-20 13:30:00,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:00" (3/3) ... [2019-09-20 13:30:00,337 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product13.cil.c [2019-09-20 13:30:00,348 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:00,357 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:00,375 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:00,406 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:00,406 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:00,406 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:00,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:00,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:00,407 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:00,408 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:00,408 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:00,430 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-09-20 13:30:00,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:00,443 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:00,445 INFO L407 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] [2019-09-20 13:30:00,447 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:00,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:00,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1769963120, now seen corresponding path program 1 times [2019-09-20 13:30:00,454 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:00,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:00,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,502 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:00,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:00,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:00,820 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:00,826 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:00,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:00,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:00,846 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2019-09-20 13:30:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:00,886 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2019-09-20 13:30:00,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:00,888 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:00,901 INFO L225 Difference]: With dead ends: 115 [2019-09-20 13:30:00,902 INFO L226 Difference]: Without dead ends: 104 [2019-09-20 13:30:00,904 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-20 13:30:00,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-20 13:30:00,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-20 13:30:00,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2019-09-20 13:30:00,958 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 51 [2019-09-20 13:30:00,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:00,959 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2019-09-20 13:30:00,959 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:00,959 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2019-09-20 13:30:00,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:00,963 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:00,963 INFO L407 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] [2019-09-20 13:30:00,964 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:00,964 INFO L82 PathProgramCache]: Analyzing trace with hash -196862469, now seen corresponding path program 1 times [2019-09-20 13:30:00,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:00,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:00,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:00,967 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:01,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:01,073 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:01,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:01,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:01,075 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand 3 states. [2019-09-20 13:30:01,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,089 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2019-09-20 13:30:01,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:01,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:01,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,092 INFO L225 Difference]: With dead ends: 95 [2019-09-20 13:30:01,093 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:30:01,094 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:30:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:30:01,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:30:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2019-09-20 13:30:01,105 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 52 [2019-09-20 13:30:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:01,105 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2019-09-20 13:30:01,105 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2019-09-20 13:30:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:30:01,108 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,108 INFO L407 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] [2019-09-20 13:30:01,108 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1769510197, now seen corresponding path program 1 times [2019-09-20 13:30:01,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,112 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:01,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:01,285 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,285 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:01,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:01,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:01,286 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand 7 states. [2019-09-20 13:30:01,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,577 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2019-09-20 13:30:01,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:01,577 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:30:01,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,579 INFO L225 Difference]: With dead ends: 95 [2019-09-20 13:30:01,579 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:30:01,580 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:30:01,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:30:01,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:30:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2019-09-20 13:30:01,589 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 56 [2019-09-20 13:30:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:01,589 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2019-09-20 13:30:01,589 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2019-09-20 13:30:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:30:01,592 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,592 INFO L407 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] [2019-09-20 13:30:01,593 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1543424388, now seen corresponding path program 1 times [2019-09-20 13:30:01,593 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,596 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:01,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:01,746 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,747 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:01,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:01,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:01,748 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 6 states. [2019-09-20 13:30:01,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,966 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-09-20 13:30:01,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:01,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-20 13:30:01,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,973 INFO L225 Difference]: With dead ends: 154 [2019-09-20 13:30:01,973 INFO L226 Difference]: Without dead ends: 154 [2019-09-20 13:30:01,974 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-09-20 13:30:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2019-09-20 13:30:02,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-09-20 13:30:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 178 transitions. [2019-09-20 13:30:02,009 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 178 transitions. Word has length 64 [2019-09-20 13:30:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,010 INFO L475 AbstractCegarLoop]: Abstraction has 152 states and 178 transitions. [2019-09-20 13:30:02,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 178 transitions. [2019-09-20 13:30:02,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-20 13:30:02,014 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,014 INFO L407 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] [2019-09-20 13:30:02,015 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1297581992, now seen corresponding path program 1 times [2019-09-20 13:30:02,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,024 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:02,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:02,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:02,194 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:02,195 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:02,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:02,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:02,196 INFO L87 Difference]: Start difference. First operand 152 states and 178 transitions. Second operand 7 states. [2019-09-20 13:30:02,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,538 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2019-09-20 13:30:02,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:02,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-09-20 13:30:02,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,539 INFO L225 Difference]: With dead ends: 116 [2019-09-20 13:30:02,539 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:02,540 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:30:02,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:02,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:02,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:02,541 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-09-20 13:30:02,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,541 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:02,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:02,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:02,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:02 BoogieIcfgContainer [2019-09-20 13:30:02,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:02,550 INFO L168 Benchmark]: Toolchain (without parser) took 4361.10 ms. Allocated memory was 131.6 MB in the beginning and 264.2 MB in the end (delta: 132.6 MB). Free memory was 86.6 MB in the beginning and 152.5 MB in the end (delta: -65.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,550 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory is still 105.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:02,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.45 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 86.6 MB in the beginning and 162.3 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,552 INFO L168 Benchmark]: Boogie Preprocessor took 140.14 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 157.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,553 INFO L168 Benchmark]: RCFGBuilder took 1283.91 ms. Allocated memory was 199.2 MB in the beginning and 221.2 MB in the end (delta: 22.0 MB). Free memory was 157.6 MB in the beginning and 191.8 MB in the end (delta: -34.2 MB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,554 INFO L168 Benchmark]: TraceAbstraction took 2217.43 ms. Allocated memory was 221.2 MB in the beginning and 264.2 MB in the end (delta: 43.0 MB). Free memory was 191.8 MB in the beginning and 152.5 MB in the end (delta: 39.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:02,558 INFO L335 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 131.6 MB. Free memory is still 105.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.45 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 86.6 MB in the beginning and 162.3 MB in the end (delta: -75.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.14 ms. Allocated memory is still 199.2 MB. Free memory was 162.3 MB in the beginning and 157.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.91 ms. Allocated memory was 199.2 MB in the beginning and 221.2 MB in the end (delta: 22.0 MB). Free memory was 157.6 MB in the beginning and 191.8 MB in the end (delta: -34.2 MB). Peak memory consumption was 89.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2217.43 ms. Allocated memory was 221.2 MB in the beginning and 264.2 MB in the end (delta: 43.0 MB). Free memory was 191.8 MB in the beginning and 152.5 MB in the end (delta: 39.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 113]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 216 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 530 SDtfs, 304 SDslu, 816 SDs, 0 SdLazy, 318 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 30424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...