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_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:09:54,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:09:54,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:09:54,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:09:54,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:09:54,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:09:54,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:09:54,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:09:54,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:09:54,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:09:54,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:09:54,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:09:54,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:09:54,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:09:54,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:09:54,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:09:54,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:09:54,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:09:54,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:09:54,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:09:54,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:09:54,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:09:54,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:09:54,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:09:54,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:09:54,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:09:54,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:09:54,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:09:54,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:09:54,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:09:54,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:09:54,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:09:54,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:09:54,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:09:54,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:09:54,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:09:54,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:09:54,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:09:54,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:09:54,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:09:54,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:09:54,481 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 [2019-09-16 17:09:54,507 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:09:54,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:09:54,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:09:54,508 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:09:54,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:09:54,509 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:09:54,509 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:09:54,510 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:09:54,510 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:09:54,510 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:09:54,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:09:54,513 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:09:54,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:09:54,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:09:54,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:09:54,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:09:54,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:09:54,514 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:09:54,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:09:54,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:09:54,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:09:54,515 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:09:54,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:09:54,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:09:54,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:09:54,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:09:54,516 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:09:54,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:09:54,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:09:54,517 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:09:54,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:09:54,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:09:54,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:09:54,604 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:09:54,604 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:09:54,606 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-09-16 17:09:54,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6397b4afc/31d73f6c625b4678a54731b68cf3c3fa/FLAGcac07b287 [2019-09-16 17:09:55,198 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:09:55,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-09-16 17:09:55,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6397b4afc/31d73f6c625b4678a54731b68cf3c3fa/FLAGcac07b287 [2019-09-16 17:09:55,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6397b4afc/31d73f6c625b4678a54731b68cf3c3fa [2019-09-16 17:09:55,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:09:55,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:09:55,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:55,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:09:55,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:09:55,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:55" (1/1) ... [2019-09-16 17:09:55,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2145c95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:55, skipping insertion in model container [2019-09-16 17:09:55,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:09:55" (1/1) ... [2019-09-16 17:09:55,509 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:09:55,580 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:09:56,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:56,102 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:09:56,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:09:56,271 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:09:56,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56 WrapperNode [2019-09-16 17:09:56,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:09:56,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:09:56,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:09:56,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:09:56,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (1/1) ... [2019-09-16 17:09:56,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (1/1) ... [2019-09-16 17:09:56,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (1/1) ... [2019-09-16 17:09:56,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (1/1) ... [2019-09-16 17:09:56,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (1/1) ... [2019-09-16 17:09:56,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (1/1) ... [2019-09-16 17:09:56,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (1/1) ... [2019-09-16 17:09:56,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:09:56,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:09:56,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:09:56,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:09:56,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (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 [2019-09-16 17:09:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:09:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:09:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:09:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:09:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:09:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:09:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:09:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:09:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-16 17:09:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:09:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:09:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:09:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:09:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:09:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:09:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:09:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:09:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:09:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:09:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:09:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:09:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:09:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:09:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:09:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:09:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:09:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:09:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:09:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:09:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:09:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:09:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-16 17:09:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:09:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:09:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:09:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:09:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:09:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:09:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:09:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:09:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:09:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:09:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:09:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:09:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:09:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:09:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:09:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-16 17:09:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:09:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:09:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:09:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:09:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-16 17:09:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-16 17:09:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-16 17:09:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:09:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:09:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:09:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:09:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:09:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:09:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:09:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:09:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:09:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:09:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:09:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:09:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:09:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:09:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:09:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:09:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:09:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:09:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:09:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:09:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:09:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:09:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:09:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:09:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:09:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:09:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:09:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:09:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:09:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:09:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:09:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:09:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-16 17:09:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-16 17:09:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:09:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:09:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:09:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:09:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:09:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:09:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:09:57,766 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:09:57,766 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:09:57,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:57 BoogieIcfgContainer [2019-09-16 17:09:57,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:09:57,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:09:57,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:09:57,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:09:57,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:09:55" (1/3) ... [2019-09-16 17:09:57,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b620925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:57, skipping insertion in model container [2019-09-16 17:09:57,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:09:56" (2/3) ... [2019-09-16 17:09:57,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b620925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:09:57, skipping insertion in model container [2019-09-16 17:09:57,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:09:57" (3/3) ... [2019-09-16 17:09:57,779 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-09-16 17:09:57,790 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:09:57,804 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:09:57,823 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:09:57,853 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:09:57,853 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:09:57,853 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:09:57,853 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:09:57,853 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:09:57,854 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:09:57,854 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:09:57,854 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:09:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2019-09-16 17:09:57,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-16 17:09:57,887 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:57,888 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:57,891 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:57,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:57,897 INFO L82 PathProgramCache]: Analyzing trace with hash -229262266, now seen corresponding path program 1 times [2019-09-16 17:09:57,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:57,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:57,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:57,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:57,950 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:58,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:58,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:09:58,261 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:58,267 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:09:58,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:09:58,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:09:58,285 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2019-09-16 17:09:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:58,327 INFO L93 Difference]: Finished difference Result 168 states and 194 transitions. [2019-09-16 17:09:58,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:09:58,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-16 17:09:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:58,353 INFO L225 Difference]: With dead ends: 168 [2019-09-16 17:09:58,353 INFO L226 Difference]: Without dead ends: 157 [2019-09-16 17:09:58,358 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 [2019-09-16 17:09:58,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-09-16 17:09:58,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-09-16 17:09:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-09-16 17:09:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 182 transitions. [2019-09-16 17:09:58,473 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 182 transitions. Word has length 59 [2019-09-16 17:09:58,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:58,474 INFO L475 AbstractCegarLoop]: Abstraction has 157 states and 182 transitions. [2019-09-16 17:09:58,474 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:09:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 182 transitions. [2019-09-16 17:09:58,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:09:58,481 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:58,482 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:58,482 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:58,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash -751857026, now seen corresponding path program 1 times [2019-09-16 17:09:58,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:58,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:58,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:58,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:58,488 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:58,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:58,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:09:58,660 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:58,662 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:09:58,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:09:58,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:09:58,663 INFO L87 Difference]: Start difference. First operand 157 states and 182 transitions. Second operand 3 states. [2019-09-16 17:09:58,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:58,691 INFO L93 Difference]: Finished difference Result 148 states and 170 transitions. [2019-09-16 17:09:58,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:09:58,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-16 17:09:58,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:58,700 INFO L225 Difference]: With dead ends: 148 [2019-09-16 17:09:58,700 INFO L226 Difference]: Without dead ends: 148 [2019-09-16 17:09:58,701 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 [2019-09-16 17:09:58,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-09-16 17:09:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-09-16 17:09:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-09-16 17:09:58,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 170 transitions. [2019-09-16 17:09:58,727 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 170 transitions. Word has length 60 [2019-09-16 17:09:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:58,728 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 170 transitions. [2019-09-16 17:09:58,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:09:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 170 transitions. [2019-09-16 17:09:58,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-16 17:09:58,732 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:58,733 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:58,733 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:58,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:58,738 INFO L82 PathProgramCache]: Analyzing trace with hash -8533593, now seen corresponding path program 1 times [2019-09-16 17:09:58,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:58,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:58,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:58,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:58,743 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:58,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:58,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:09:58,959 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:58,959 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:09:58,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:09:58,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:09:58,960 INFO L87 Difference]: Start difference. First operand 148 states and 170 transitions. Second operand 7 states. [2019-09-16 17:09:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:09:59,342 INFO L93 Difference]: Finished difference Result 148 states and 169 transitions. [2019-09-16 17:09:59,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:09:59,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-16 17:09:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:09:59,345 INFO L225 Difference]: With dead ends: 148 [2019-09-16 17:09:59,345 INFO L226 Difference]: Without dead ends: 148 [2019-09-16 17:09:59,346 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:09:59,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-09-16 17:09:59,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-09-16 17:09:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-09-16 17:09:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 169 transitions. [2019-09-16 17:09:59,356 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 169 transitions. Word has length 65 [2019-09-16 17:09:59,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:09:59,358 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 169 transitions. [2019-09-16 17:09:59,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:09:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 169 transitions. [2019-09-16 17:09:59,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-16 17:09:59,362 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:09:59,362 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:09:59,363 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:09:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:09:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash -2138732759, now seen corresponding path program 1 times [2019-09-16 17:09:59,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:09:59,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:59,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:09:59,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:09:59,369 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:09:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:09:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:09:59,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:09:59,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:09:59,493 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:09:59,494 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:09:59,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:09:59,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:09:59,495 INFO L87 Difference]: Start difference. First operand 148 states and 169 transitions. Second operand 5 states. [2019-09-16 17:10:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:00,115 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2019-09-16 17:10:00,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:10:00,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-09-16 17:10:00,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:00,123 INFO L225 Difference]: With dead ends: 256 [2019-09-16 17:10:00,123 INFO L226 Difference]: Without dead ends: 256 [2019-09-16 17:10:00,124 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:10:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-09-16 17:10:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 237. [2019-09-16 17:10:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2019-09-16 17:10:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 270 transitions. [2019-09-16 17:10:00,149 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 270 transitions. Word has length 78 [2019-09-16 17:10:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:00,149 INFO L475 AbstractCegarLoop]: Abstraction has 237 states and 270 transitions. [2019-09-16 17:10:00,149 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:10:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 270 transitions. [2019-09-16 17:10:00,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-16 17:10:00,151 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:00,151 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:10:00,152 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:00,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2116914143, now seen corresponding path program 1 times [2019-09-16 17:10:00,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:00,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:00,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:00,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:00,156 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:10:00,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:00,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:10:00,292 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:00,293 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:10:00,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:10:00,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:10:00,295 INFO L87 Difference]: Start difference. First operand 237 states and 270 transitions. Second operand 7 states. [2019-09-16 17:10:01,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:01,058 INFO L93 Difference]: Finished difference Result 255 states and 296 transitions. [2019-09-16 17:10:01,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:10:01,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-09-16 17:10:01,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:01,062 INFO L225 Difference]: With dead ends: 255 [2019-09-16 17:10:01,063 INFO L226 Difference]: Without dead ends: 255 [2019-09-16 17:10:01,063 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:10:01,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2019-09-16 17:10:01,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 236. [2019-09-16 17:10:01,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-09-16 17:10:01,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 267 transitions. [2019-09-16 17:10:01,079 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 267 transitions. Word has length 92 [2019-09-16 17:10:01,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:01,080 INFO L475 AbstractCegarLoop]: Abstraction has 236 states and 267 transitions. [2019-09-16 17:10:01,080 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:10:01,080 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 267 transitions. [2019-09-16 17:10:01,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:10:01,082 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:01,082 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:10:01,082 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:01,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:01,083 INFO L82 PathProgramCache]: Analyzing trace with hash 660673946, now seen corresponding path program 1 times [2019-09-16 17:10:01,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:01,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:01,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,086 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:01,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:01,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:10:01,211 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:01,211 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:10:01,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:10:01,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:10:01,212 INFO L87 Difference]: Start difference. First operand 236 states and 267 transitions. Second operand 6 states. [2019-09-16 17:10:01,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:01,263 INFO L93 Difference]: Finished difference Result 243 states and 274 transitions. [2019-09-16 17:10:01,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:10:01,265 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2019-09-16 17:10:01,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:01,270 INFO L225 Difference]: With dead ends: 243 [2019-09-16 17:10:01,270 INFO L226 Difference]: Without dead ends: 243 [2019-09-16 17:10:01,271 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:10:01,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-16 17:10:01,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2019-09-16 17:10:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-09-16 17:10:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 272 transitions. [2019-09-16 17:10:01,299 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 272 transitions. Word has length 108 [2019-09-16 17:10:01,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:01,300 INFO L475 AbstractCegarLoop]: Abstraction has 241 states and 272 transitions. [2019-09-16 17:10:01,300 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:10:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 272 transitions. [2019-09-16 17:10:01,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:10:01,302 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:01,302 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:10:01,303 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:01,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:01,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1706020648, now seen corresponding path program 1 times [2019-09-16 17:10:01,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:01,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:01,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,307 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:01,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:01,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:10:01,447 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:01,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:10:01,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:10:01,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:10:01,450 INFO L87 Difference]: Start difference. First operand 241 states and 272 transitions. Second operand 8 states. [2019-09-16 17:10:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:01,482 INFO L93 Difference]: Finished difference Result 248 states and 279 transitions. [2019-09-16 17:10:01,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:10:01,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-09-16 17:10:01,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:01,489 INFO L225 Difference]: With dead ends: 248 [2019-09-16 17:10:01,490 INFO L226 Difference]: Without dead ends: 248 [2019-09-16 17:10:01,490 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:10:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2019-09-16 17:10:01,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 245. [2019-09-16 17:10:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-09-16 17:10:01,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 276 transitions. [2019-09-16 17:10:01,510 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 276 transitions. Word has length 108 [2019-09-16 17:10:01,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:01,511 INFO L475 AbstractCegarLoop]: Abstraction has 245 states and 276 transitions. [2019-09-16 17:10:01,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:10:01,511 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 276 transitions. [2019-09-16 17:10:01,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:10:01,513 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:01,513 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:10:01,513 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:01,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:01,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1946560777, now seen corresponding path program 1 times [2019-09-16 17:10:01,514 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:01,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:01,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,517 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:01,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:01,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:10:01,636 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:01,637 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:10:01,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:10:01,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:10:01,638 INFO L87 Difference]: Start difference. First operand 245 states and 276 transitions. Second operand 4 states. [2019-09-16 17:10:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:01,874 INFO L93 Difference]: Finished difference Result 484 states and 567 transitions. [2019-09-16 17:10:01,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:10:01,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-09-16 17:10:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:01,878 INFO L225 Difference]: With dead ends: 484 [2019-09-16 17:10:01,878 INFO L226 Difference]: Without dead ends: 484 [2019-09-16 17:10:01,879 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:10:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2019-09-16 17:10:01,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 475. [2019-09-16 17:10:01,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-09-16 17:10:01,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 550 transitions. [2019-09-16 17:10:01,900 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 550 transitions. Word has length 108 [2019-09-16 17:10:01,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:01,900 INFO L475 AbstractCegarLoop]: Abstraction has 475 states and 550 transitions. [2019-09-16 17:10:01,900 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:10:01,901 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 550 transitions. [2019-09-16 17:10:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-16 17:10:01,902 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:01,903 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:10:01,903 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:01,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:01,903 INFO L82 PathProgramCache]: Analyzing trace with hash 79738257, now seen corresponding path program 1 times [2019-09-16 17:10:01,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:01,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:01,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:01,906 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 17:10:02,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:10:02,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:10:02,038 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:02,039 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:10:02,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:10:02,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:10:02,039 INFO L87 Difference]: Start difference. First operand 475 states and 550 transitions. Second operand 9 states. [2019-09-16 17:10:03,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:03,334 INFO L93 Difference]: Finished difference Result 879 states and 1019 transitions. [2019-09-16 17:10:03,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-16 17:10:03,335 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2019-09-16 17:10:03,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:03,340 INFO L225 Difference]: With dead ends: 879 [2019-09-16 17:10:03,340 INFO L226 Difference]: Without dead ends: 879 [2019-09-16 17:10:03,341 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:10:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-09-16 17:10:03,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 798. [2019-09-16 17:10:03,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2019-09-16 17:10:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 913 transitions. [2019-09-16 17:10:03,373 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 913 transitions. Word has length 112 [2019-09-16 17:10:03,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:03,374 INFO L475 AbstractCegarLoop]: Abstraction has 798 states and 913 transitions. [2019-09-16 17:10:03,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:10:03,374 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 913 transitions. [2019-09-16 17:10:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-16 17:10:03,377 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:10:03,377 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:10:03,377 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:10:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:03,378 INFO L82 PathProgramCache]: Analyzing trace with hash -992810877, now seen corresponding path program 1 times [2019-09-16 17:10:03,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:10:03,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:03,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:10:03,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:10:03,380 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:10:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:10:03,551 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-16 17:10:03,552 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:10:03,552 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:10:03,554 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2019-09-16 17:10:03,558 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [175], [178], [188], [189], [190], [191], [201], [203], [208], [211], [212], [213], [214], [216], [221], [223], [224], [225], [226], [230], [233], [237], [243], [272], [276], [279], [282], [284], [287], [294], [297], [300], [304], [305], [308], [309], [310], [312], [313], [314], [316], [319], [321], [324], [327], [336], [338], [339], [340], [364], [366], [367], [434], [435], [445], [453], [454], [455], [456], [457], [458], [459], [460], [461], [493], [494], [495], [496], [499], [500], [501], [502], [503], [504], [509], [510], [513], [514], [515], [516], [517], [518], [519], [520], [521], [522], [523], [524], [525], [526], [531], [532], [533], [534], [537], [538], [539], [540], [541], [542], [543], [544], [545], [549], [550], [551], [553], [554], [559], [560], [561] [2019-09-16 17:10:03,622 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:10:03,623 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:10:03,739 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:10:03,741 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-16 17:10:03,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:10:03,749 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:10:03,859 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:10:03,859 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:10:03,870 INFO L420 sIntCurrentIteration]: We unified 173 AI predicates to 173 [2019-09-16 17:10:03,871 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:10:03,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:10:03,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-16 17:10:03,872 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:10:03,873 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:10:03,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:10:03,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:10:03,874 INFO L87 Difference]: Start difference. First operand 798 states and 913 transitions. Second operand 2 states. [2019-09-16 17:10:03,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:10:03,874 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:10:03,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:10:03,874 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-09-16 17:10:03,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:10:03,875 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:10:03,875 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:10:03,876 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:10:03,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:10:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:10:03,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:10:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:10:03,877 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2019-09-16 17:10:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:10:03,877 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:10:03,877 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:10:03,877 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:10:03,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:10:03,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:10:03 BoogieIcfgContainer [2019-09-16 17:10:03,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:10:03,888 INFO L168 Benchmark]: Toolchain (without parser) took 8393.48 ms. Allocated memory was 132.1 MB in the beginning and 328.7 MB in the end (delta: 196.6 MB). Free memory was 86.9 MB in the beginning and 170.7 MB in the end (delta: -83.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:03,889 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:10:03,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.62 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 162.8 MB in the end (delta: -76.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:03,893 INFO L168 Benchmark]: Boogie Preprocessor took 108.38 ms. Allocated memory is still 199.2 MB. Free memory was 162.8 MB in the beginning and 158.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:03,900 INFO L168 Benchmark]: RCFGBuilder took 1387.44 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 158.4 MB in the beginning and 186.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 90.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:03,901 INFO L168 Benchmark]: TraceAbstraction took 6113.93 ms. Allocated memory was 221.8 MB in the beginning and 328.7 MB in the end (delta: 107.0 MB). Free memory was 186.8 MB in the beginning and 170.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 123.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:10:03,915 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 778.62 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 162.8 MB in the end (delta: -76.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.38 ms. Allocated memory is still 199.2 MB. Free memory was 162.8 MB in the beginning and 158.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1387.44 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 158.4 MB in the beginning and 186.8 MB in the end (delta: -28.4 MB). Peak memory consumption was 90.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6113.93 ms. Allocated memory was 221.8 MB in the beginning and 328.7 MB in the end (delta: 107.0 MB). Free memory was 186.8 MB in the beginning and 170.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 123.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 675]: 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 44 procedures, 256 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1702 SDtfs, 1311 SDslu, 3342 SDs, 0 SdLazy, 1921 SolverSat, 504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8265895953757225 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 133 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 964 NumberOfCodeBlocks, 964 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 954 ConstructedInterpolants, 0 QuantifiedInterpolants, 166111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 63/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...