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_spec4_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:25,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:25,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:25,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:25,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:25,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:25,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:25,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:25,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:25,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:25,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:25,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:25,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:25,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:25,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:25,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:25,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:25,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:25,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:25,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:25,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:25,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:25,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:25,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:25,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:25,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:25,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:25,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:25,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:25,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:25,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:25,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:25,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:25,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:25,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:25,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:25,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:25,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:25,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:25,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:25,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:25,593 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 [2019-09-10 02:50:25,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:25,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:25,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:25,608 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:25,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:25,609 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:25,609 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:25,609 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:25,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:25,610 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:25,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:25,611 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:25,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:25,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:25,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:25,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:25,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:25,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:25,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:25,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:25,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:25,613 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:25,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:25,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:25,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:25,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:25,614 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:25,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:25,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:25,615 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:25,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:25,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:25,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:25,686 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:25,687 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:25,688 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-09-10 02:50:25,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34170a3c3/70f3fe2d55a94786b8af2dfc9bb0ba97/FLAGc2088e8b1 [2019-09-10 02:50:26,246 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:26,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product53.cil.c [2019-09-10 02:50:26,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34170a3c3/70f3fe2d55a94786b8af2dfc9bb0ba97/FLAGc2088e8b1 [2019-09-10 02:50:26,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34170a3c3/70f3fe2d55a94786b8af2dfc9bb0ba97 [2019-09-10 02:50:26,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:26,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:26,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:26,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:26,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:26,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:26" (1/1) ... [2019-09-10 02:50:26,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1833db0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:26, skipping insertion in model container [2019-09-10 02:50:26,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:26" (1/1) ... [2019-09-10 02:50:26,580 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:26,635 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:27,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:27,089 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:27,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:27,286 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:27,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27 WrapperNode [2019-09-10 02:50:27,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:27,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:27,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:27,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:27,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (1/1) ... [2019-09-10 02:50:27,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (1/1) ... [2019-09-10 02:50:27,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (1/1) ... [2019-09-10 02:50:27,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (1/1) ... [2019-09-10 02:50:27,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (1/1) ... [2019-09-10 02:50:27,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (1/1) ... [2019-09-10 02:50:27,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (1/1) ... [2019-09-10 02:50:27,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:27,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:27,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:27,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:27,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (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 [2019-09-10 02:50:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:27,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:50:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:50:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:50:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:50:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:50:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:50:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:50:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:50:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:50:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:50:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:27,504 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:27,504 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:27,505 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:27,505 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:27,506 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:27,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:28,609 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:28,609 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:28,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:28 BoogieIcfgContainer [2019-09-10 02:50:28,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:28,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:28,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:28,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:28,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:26" (1/3) ... [2019-09-10 02:50:28,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3668d2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:28, skipping insertion in model container [2019-09-10 02:50:28,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:27" (2/3) ... [2019-09-10 02:50:28,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3668d2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:28, skipping insertion in model container [2019-09-10 02:50:28,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:28" (3/3) ... [2019-09-10 02:50:28,620 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2019-09-10 02:50:28,630 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:28,639 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:28,656 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:28,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:28,684 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:28,685 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:28,685 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:28,685 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:28,685 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:28,685 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:28,685 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:28,705 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states. [2019-09-10 02:50:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:50:28,718 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:28,719 INFO L399 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] [2019-09-10 02:50:28,722 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:28,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:28,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1045855625, now seen corresponding path program 1 times [2019-09-10 02:50:28,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:28,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:28,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:28,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:28,781 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:29,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:29,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:29,117 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:29,124 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:29,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:29,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:29,148 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 2 states. [2019-09-10 02:50:29,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:29,198 INFO L93 Difference]: Finished difference Result 157 states and 184 transitions. [2019-09-10 02:50:29,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:29,209 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:50:29,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:29,222 INFO L225 Difference]: With dead ends: 157 [2019-09-10 02:50:29,222 INFO L226 Difference]: Without dead ends: 146 [2019-09-10 02:50:29,224 INFO L628 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 [2019-09-10 02:50:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-09-10 02:50:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-09-10 02:50:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-09-10 02:50:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2019-09-10 02:50:29,278 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 46 [2019-09-10 02:50:29,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:29,278 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2019-09-10 02:50:29,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2019-09-10 02:50:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:50:29,282 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:29,282 INFO L399 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] [2019-09-10 02:50:29,283 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:29,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:29,283 INFO L82 PathProgramCache]: Analyzing trace with hash -334246685, now seen corresponding path program 1 times [2019-09-10 02:50:29,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:29,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:29,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:29,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:29,285 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:29,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:29,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:29,421 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:29,423 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:29,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:29,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:29,425 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 3 states. [2019-09-10 02:50:29,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:29,456 INFO L93 Difference]: Finished difference Result 137 states and 160 transitions. [2019-09-10 02:50:29,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:29,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:50:29,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:29,465 INFO L225 Difference]: With dead ends: 137 [2019-09-10 02:50:29,465 INFO L226 Difference]: Without dead ends: 137 [2019-09-10 02:50:29,466 INFO L628 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 [2019-09-10 02:50:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-09-10 02:50:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-09-10 02:50:29,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-09-10 02:50:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2019-09-10 02:50:29,494 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 47 [2019-09-10 02:50:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:29,494 INFO L475 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2019-09-10 02:50:29,494 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2019-09-10 02:50:29,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:50:29,499 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:29,499 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:29,499 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:29,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:29,500 INFO L82 PathProgramCache]: Analyzing trace with hash 20699943, now seen corresponding path program 1 times [2019-09-10 02:50:29,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:29,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:29,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:29,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:29,501 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:29,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:29,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:29,637 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:29,639 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:29,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:29,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:29,640 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2019-09-10 02:50:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:29,673 INFO L93 Difference]: Finished difference Result 137 states and 159 transitions. [2019-09-10 02:50:29,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:29,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-10 02:50:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:29,679 INFO L225 Difference]: With dead ends: 137 [2019-09-10 02:50:29,679 INFO L226 Difference]: Without dead ends: 137 [2019-09-10 02:50:29,680 INFO L628 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 [2019-09-10 02:50:29,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-09-10 02:50:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2019-09-10 02:50:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2019-09-10 02:50:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2019-09-10 02:50:29,702 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 51 [2019-09-10 02:50:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:29,702 INFO L475 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2019-09-10 02:50:29,702 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2019-09-10 02:50:29,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 02:50:29,705 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:29,705 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:29,705 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:29,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:29,706 INFO L82 PathProgramCache]: Analyzing trace with hash 134260403, now seen corresponding path program 1 times [2019-09-10 02:50:29,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:29,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:29,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:29,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:29,707 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:29,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:29,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:50:29,886 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:29,888 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:50:29,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:50:29,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:50:29,889 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand 5 states. [2019-09-10 02:50:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:30,558 INFO L93 Difference]: Finished difference Result 239 states and 274 transitions. [2019-09-10 02:50:30,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:50:30,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-10 02:50:30,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:30,564 INFO L225 Difference]: With dead ends: 239 [2019-09-10 02:50:30,565 INFO L226 Difference]: Without dead ends: 239 [2019-09-10 02:50:30,566 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:50:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-09-10 02:50:30,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 221. [2019-09-10 02:50:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-09-10 02:50:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 250 transitions. [2019-09-10 02:50:30,605 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 250 transitions. Word has length 69 [2019-09-10 02:50:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:30,606 INFO L475 AbstractCegarLoop]: Abstraction has 221 states and 250 transitions. [2019-09-10 02:50:30,606 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:50:30,607 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 250 transitions. [2019-09-10 02:50:30,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:50:30,613 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:30,613 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:30,615 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:30,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:30,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1484828875, now seen corresponding path program 1 times [2019-09-10 02:50:30,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:30,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:30,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:30,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:30,617 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:30,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:30,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:50:30,794 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:30,794 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:50:30,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:50:30,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:30,795 INFO L87 Difference]: Start difference. First operand 221 states and 250 transitions. Second operand 10 states. [2019-09-10 02:50:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:31,474 INFO L93 Difference]: Finished difference Result 506 states and 599 transitions. [2019-09-10 02:50:31,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:50:31,475 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-09-10 02:50:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:31,483 INFO L225 Difference]: With dead ends: 506 [2019-09-10 02:50:31,483 INFO L226 Difference]: Without dead ends: 506 [2019-09-10 02:50:31,485 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:50:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-09-10 02:50:31,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 496. [2019-09-10 02:50:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2019-09-10 02:50:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 582 transitions. [2019-09-10 02:50:31,523 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 582 transitions. Word has length 83 [2019-09-10 02:50:31,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:31,523 INFO L475 AbstractCegarLoop]: Abstraction has 496 states and 582 transitions. [2019-09-10 02:50:31,524 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:50:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 582 transitions. [2019-09-10 02:50:31,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-10 02:50:31,527 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:31,527 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 02:50:31,527 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:31,528 INFO L82 PathProgramCache]: Analyzing trace with hash 733039381, now seen corresponding path program 1 times [2019-09-10 02:50:31,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:31,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:31,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:31,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:31,529 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 02:50:31,632 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:50:31,632 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:50:31,634 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2019-09-10 02:50:31,636 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [132], [134], [135], [138], [140], [143], [150], [153], [155], [164], [168], [172], [175], [180], [186], [188], [191], [217], [218], [219], [221], [224], [228], [229], [230], [231], [234], [237], [241], [247], [274], [275], [278], [282], [283], [286], [288], [291], [301], [304], [308], [309], [312], [327], [330], [331], [332], [333], [356], [358], [359], [360], [361], [426], [427], [437], [445], [446], [447], [448], [449], [451], [452], [453], [454], [455], [456], [457], [458], [459], [493], [494], [495], [496], [499], [500], [501], [502], [505], [506], [509], [510], [511], [512], [513], [514], [515], [516], [521], [522], [523], [524], [535], [536], [539], [541], [542], [547], [548], [549] [2019-09-10 02:50:31,681 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:50:31,681 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:50:31,769 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:50:31,771 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-10 02:50:31,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:31,777 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:50:31,884 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:50:31,884 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:50:31,893 INFO L420 sIntCurrentIteration]: We unified 138 AI predicates to 138 [2019-09-10 02:50:31,894 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:50:31,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:50:31,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-10 02:50:31,895 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:31,897 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:31,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:31,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:31,898 INFO L87 Difference]: Start difference. First operand 496 states and 582 transitions. Second operand 2 states. [2019-09-10 02:50:31,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:31,899 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:50:31,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:31,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 139 [2019-09-10 02:50:31,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:31,900 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:50:31,900 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:31,900 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:31,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:31,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2019-09-10 02:50:31,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:31,901 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:31,902 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:31,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:31,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:31,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:31 BoogieIcfgContainer [2019-09-10 02:50:31,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:31,916 INFO L168 Benchmark]: Toolchain (without parser) took 5349.89 ms. Allocated memory was 143.1 MB in the beginning and 252.2 MB in the end (delta: 109.1 MB). Free memory was 89.6 MB in the beginning and 158.3 MB in the end (delta: -68.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:31,918 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 143.1 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:31,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.67 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 89.4 MB in the beginning and 165.4 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:31,922 INFO L168 Benchmark]: Boogie Preprocessor took 110.77 ms. Allocated memory is still 202.4 MB. Free memory was 165.4 MB in the beginning and 161.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:31,924 INFO L168 Benchmark]: RCFGBuilder took 1212.83 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 161.4 MB in the beginning and 190.5 MB in the end (delta: -29.1 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:31,926 INFO L168 Benchmark]: TraceAbstraction took 3298.96 ms. Allocated memory was 233.3 MB in the beginning and 252.2 MB in the end (delta: 18.9 MB). Free memory was 190.5 MB in the beginning and 158.3 MB in the end (delta: 32.2 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:31,940 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 143.1 MB. Free memory was 109.3 MB in the beginning and 109.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.67 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 89.4 MB in the beginning and 165.4 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.77 ms. Allocated memory is still 202.4 MB. Free memory was 165.4 MB in the beginning and 161.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1212.83 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 161.4 MB in the beginning and 190.5 MB in the end (delta: -29.1 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3298.96 ms. Allocated memory was 233.3 MB in the beginning and 252.2 MB in the end (delta: 18.9 MB). Free memory was 190.5 MB in the beginning and 158.3 MB in the end (delta: 32.2 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: 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 41 procedures, 245 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 885 SDtfs, 575 SDslu, 1626 SDs, 0 SdLazy, 638 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=496occurred in iteration=5, 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, 0.8623188405797102 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 54211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 26/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...