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_spec1_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:56:25,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:56:25,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:56:25,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:56:25,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:56:25,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:56:25,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:56:25,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:56:25,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:56:25,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:56:25,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:56:25,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:56:25,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:56:25,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:56:25,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:56:25,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:56:25,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:56:25,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:56:25,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:56:25,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:56:25,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:56:25,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:56:25,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:56:25,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:56:25,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:56:25,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:56:25,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:56:25,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:56:25,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:56:25,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:56:25,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:56:25,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:56:25,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:56:25,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:56:25,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:56:25,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:56:25,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:56:25,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:56:25,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:56:25,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:56:25,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:56:25,409 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 [2019-10-03 02:56:25,432 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:56:25,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:56:25,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:56:25,435 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:56:25,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:56:25,436 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:56:25,436 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:56:25,436 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:56:25,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:56:25,436 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:56:25,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:56:25,438 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:56:25,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:56:25,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:56:25,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:56:25,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:56:25,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:56:25,440 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:56:25,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:56:25,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:56:25,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:56:25,441 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:56:25,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:56:25,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:25,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:56:25,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:56:25,442 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:56:25,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:56:25,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:56:25,442 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:56:25,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:56:25,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:56:25,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:56:25,512 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:56:25,513 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:56:25,513 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product01.cil.c [2019-10-03 02:56:25,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a68235541/2399bfd05a434ce69789007a8672192b/FLAG986084f04 [2019-10-03 02:56:26,045 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:56:26,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product01.cil.c [2019-10-03 02:56:26,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a68235541/2399bfd05a434ce69789007a8672192b/FLAG986084f04 [2019-10-03 02:56:26,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a68235541/2399bfd05a434ce69789007a8672192b [2019-10-03 02:56:26,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:56:26,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:56:26,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:26,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:56:26,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:56:26,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:26" (1/1) ... [2019-10-03 02:56:26,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3abfca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:26, skipping insertion in model container [2019-10-03 02:56:26,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:26" (1/1) ... [2019-10-03 02:56:26,437 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:56:26,491 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:56:27,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:27,071 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:56:27,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:27,248 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:56:27,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27 WrapperNode [2019-10-03 02:56:27,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:27,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:56:27,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:56:27,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:56:27,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (1/1) ... [2019-10-03 02:56:27,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (1/1) ... [2019-10-03 02:56:27,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (1/1) ... [2019-10-03 02:56:27,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (1/1) ... [2019-10-03 02:56:27,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (1/1) ... [2019-10-03 02:56:27,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (1/1) ... [2019-10-03 02:56:27,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (1/1) ... [2019-10-03 02:56:27,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:56:27,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:56:27,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:56:27,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:56:27,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (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 [2019-10-03 02:56:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:56:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:56:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:56:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:56:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:56:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:56:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:56:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:56:27,466 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:56:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:56:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:56:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:56:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:56:27,467 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:56:27,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:56:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:56:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:56:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:56:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:56:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:56:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:56:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:56:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:56:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:56:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:56:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:56:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:56:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:56:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:56:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:56:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:56:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:56:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:56:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:56:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:56:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:56:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:56:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:56:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:56:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:56:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:56:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:56:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:56:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:56:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:56:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:56:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:56:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:56:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:56:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:56:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:56:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:56:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:56:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:56:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:56:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:56:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:56:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:56:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:56:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:56:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:56:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:56:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:56:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:56:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:56:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:56:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:56:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:56:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:56:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:56:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:56:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:56:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:56:28,508 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:56:28,508 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:56:28,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:28 BoogieIcfgContainer [2019-10-03 02:56:28,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:56:28,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:56:28,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:56:28,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:56:28,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:56:26" (1/3) ... [2019-10-03 02:56:28,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd1352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:28, skipping insertion in model container [2019-10-03 02:56:28,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:27" (2/3) ... [2019-10-03 02:56:28,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd1352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:28, skipping insertion in model container [2019-10-03 02:56:28,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:28" (3/3) ... [2019-10-03 02:56:28,520 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product01.cil.c [2019-10-03 02:56:28,531 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:56:28,542 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:56:28,562 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:56:28,591 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:56:28,592 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:56:28,592 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:56:28,592 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:56:28,592 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:56:28,592 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:56:28,592 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:56:28,593 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:56:28,613 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2019-10-03 02:56:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:56:28,646 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:28,647 INFO L411 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] [2019-10-03 02:56:28,651 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:28,658 INFO L82 PathProgramCache]: Analyzing trace with hash -835397562, now seen corresponding path program 1 times [2019-10-03 02:56:28,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:28,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:28,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:28,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:28,717 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:29,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:29,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:56:29,009 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:29,014 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:56:29,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:56:29,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:29,033 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 2 states. [2019-10-03 02:56:29,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:29,062 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2019-10-03 02:56:29,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:56:29,064 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:56:29,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:29,077 INFO L225 Difference]: With dead ends: 92 [2019-10-03 02:56:29,077 INFO L226 Difference]: Without dead ends: 81 [2019-10-03 02:56:29,081 INFO L640 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 [2019-10-03 02:56:29,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-10-03 02:56:29,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-10-03 02:56:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-03 02:56:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2019-10-03 02:56:29,130 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 46 [2019-10-03 02:56:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:29,131 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2019-10-03 02:56:29,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:56:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2019-10-03 02:56:29,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:56:29,134 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:29,134 INFO L411 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] [2019-10-03 02:56:29,135 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:29,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:29,135 INFO L82 PathProgramCache]: Analyzing trace with hash -297882774, now seen corresponding path program 1 times [2019-10-03 02:56:29,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:29,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:29,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:29,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:29,139 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:29,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:29,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:29,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:29,288 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:29,290 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:29,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:29,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:29,292 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand 3 states. [2019-10-03 02:56:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:29,315 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2019-10-03 02:56:29,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:29,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:56:29,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:29,321 INFO L225 Difference]: With dead ends: 72 [2019-10-03 02:56:29,322 INFO L226 Difference]: Without dead ends: 72 [2019-10-03 02:56:29,322 INFO L640 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 [2019-10-03 02:56:29,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-03 02:56:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-10-03 02:56:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-03 02:56:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2019-10-03 02:56:29,341 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 47 [2019-10-03 02:56:29,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:29,345 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2019-10-03 02:56:29,345 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:29,345 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2019-10-03 02:56:29,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:56:29,349 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:29,349 INFO L411 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] [2019-10-03 02:56:29,351 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:29,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:29,351 INFO L82 PathProgramCache]: Analyzing trace with hash 2081031283, now seen corresponding path program 1 times [2019-10-03 02:56:29,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:29,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:29,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:29,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:29,355 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:29,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:29,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:56:29,514 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:29,515 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:56:29,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:56:29,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:56:29,516 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 7 states. [2019-10-03 02:56:29,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:29,807 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2019-10-03 02:56:29,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:56:29,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-10-03 02:56:29,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:29,810 INFO L225 Difference]: With dead ends: 72 [2019-10-03 02:56:29,811 INFO L226 Difference]: Without dead ends: 72 [2019-10-03 02:56:29,813 INFO L640 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 [2019-10-03 02:56:29,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-03 02:56:29,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-10-03 02:56:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-03 02:56:29,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2019-10-03 02:56:29,826 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 51 [2019-10-03 02:56:29,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:29,827 INFO L475 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2019-10-03 02:56:29,827 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:56:29,827 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2019-10-03 02:56:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-03 02:56:29,832 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:29,832 INFO L411 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] [2019-10-03 02:56:29,833 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:29,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1503869897, now seen corresponding path program 1 times [2019-10-03 02:56:29,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:29,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:29,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:29,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:29,837 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:29,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:29,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:29,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:56:29,966 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:29,967 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:56:29,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:56:29,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:56:29,968 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand 6 states. [2019-10-03 02:56:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:30,148 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2019-10-03 02:56:30,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:56:30,149 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2019-10-03 02:56:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:30,159 INFO L225 Difference]: With dead ends: 113 [2019-10-03 02:56:30,159 INFO L226 Difference]: Without dead ends: 113 [2019-10-03 02:56:30,162 INFO L640 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 [2019-10-03 02:56:30,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-03 02:56:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2019-10-03 02:56:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-03 02:56:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2019-10-03 02:56:30,198 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 54 [2019-10-03 02:56:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:30,199 INFO L475 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2019-10-03 02:56:30,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:56:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2019-10-03 02:56:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-03 02:56:30,204 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:30,204 INFO L411 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] [2019-10-03 02:56:30,205 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:30,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:30,207 INFO L82 PathProgramCache]: Analyzing trace with hash 353010405, now seen corresponding path program 1 times [2019-10-03 02:56:30,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:30,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:30,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:30,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:30,212 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:56:30,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:30,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:56:30,385 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:30,392 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:56:30,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:56:30,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:56:30,393 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 6 states. [2019-10-03 02:56:30,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:30,553 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2019-10-03 02:56:30,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:56:30,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-10-03 02:56:30,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:30,555 INFO L225 Difference]: With dead ends: 102 [2019-10-03 02:56:30,555 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:56:30,556 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:56:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:56:30,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:56:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:56:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:56:30,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2019-10-03 02:56:30,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:30,557 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:56:30,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:56:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:56:30,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:56:30,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:56:30 BoogieIcfgContainer [2019-10-03 02:56:30,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:56:30,567 INFO L168 Benchmark]: Toolchain (without parser) took 4147.64 ms. Allocated memory was 131.6 MB in the beginning and 264.2 MB in the end (delta: 132.6 MB). Free memory was 86.4 MB in the beginning and 200.5 MB in the end (delta: -114.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:30,569 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:56:30,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.47 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.2 MB in the beginning and 166.3 MB in the end (delta: -80.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:30,573 INFO L168 Benchmark]: Boogie Preprocessor took 129.39 ms. Allocated memory is still 199.8 MB. Free memory was 166.3 MB in the beginning and 161.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:30,574 INFO L168 Benchmark]: RCFGBuilder took 1130.37 ms. Allocated memory is still 199.8 MB. Free memory was 161.8 MB in the beginning and 82.5 MB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:30,576 INFO L168 Benchmark]: TraceAbstraction took 2052.20 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 81.8 MB in the beginning and 200.5 MB in the end (delta: -118.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:56:30,585 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 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 830.47 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.2 MB in the beginning and 166.3 MB in the end (delta: -80.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.39 ms. Allocated memory is still 199.8 MB. Free memory was 166.3 MB in the beginning and 161.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1130.37 ms. Allocated memory is still 199.8 MB. Free memory was 161.8 MB in the beginning and 82.5 MB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2052.20 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 81.8 MB in the beginning and 200.5 MB in the end (delta: -118.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 470]: 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 34 procedures, 194 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 419 SDtfs, 163 SDslu, 692 SDs, 0 SdLazy, 163 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred 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, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 23729 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...