java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:41,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:41,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:41,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:41,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:41,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:41,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:41,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:41,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:41,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:41,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:41,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:41,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:41,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:41,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:41,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:41,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:41,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:41,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:41,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:41,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:41,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:41,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:41,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:41,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:41,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:41,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:41,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:41,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:41,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:41,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:41,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:41,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:41,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:41,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:41,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:41,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:41,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:41,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:41,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:41,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:41,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:31:41,557 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:41,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:41,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:41,558 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:41,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:41,559 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:41,559 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:41,559 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:41,560 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:41,560 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:41,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:41,561 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:41,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:41,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:41,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:41,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:41,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:41,562 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:41,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:41,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:41,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:41,563 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:41,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:41,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:41,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:41,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:41,564 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:41,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:41,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:41,565 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:41,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:41,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:41,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:41,632 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:41,632 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:41,633 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-09-20 13:31:41,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4644cb6a/fa120baceb1a457da1c93060e620332f/FLAG27f98bbbd [2019-09-20 13:31:42,233 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:42,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-09-20 13:31:42,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4644cb6a/fa120baceb1a457da1c93060e620332f/FLAG27f98bbbd [2019-09-20 13:31:42,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4644cb6a/fa120baceb1a457da1c93060e620332f [2019-09-20 13:31:42,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:42,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:42,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:42,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:42,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:42,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:42" (1/1) ... [2019-09-20 13:31:42,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458d6857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:42, skipping insertion in model container [2019-09-20 13:31:42,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:42" (1/1) ... [2019-09-20 13:31:42,556 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:42,602 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:43,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:43,060 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:43,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:43,219 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:43,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43 WrapperNode [2019-09-20 13:31:43,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:43,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:43,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:43,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:43,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... [2019-09-20 13:31:43,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... [2019-09-20 13:31:43,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... [2019-09-20 13:31:43,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... [2019-09-20 13:31:43,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... [2019-09-20 13:31:43,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... [2019-09-20 13:31:43,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... [2019-09-20 13:31:43,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:43,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:43,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:43,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:43,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:43,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:43,399 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:43,401 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:43,402 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:43,402 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:43,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:43,402 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:43,402 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:43,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:43,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:43,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:43,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:44,538 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:44,538 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:44,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:44 BoogieIcfgContainer [2019-09-20 13:31:44,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:44,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:44,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:44,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:44,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:42" (1/3) ... [2019-09-20 13:31:44,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378a8ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:44, skipping insertion in model container [2019-09-20 13:31:44,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:43" (2/3) ... [2019-09-20 13:31:44,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378a8ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:44, skipping insertion in model container [2019-09-20 13:31:44,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:44" (3/3) ... [2019-09-20 13:31:44,549 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-09-20 13:31:44,559 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:44,568 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:44,585 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:44,613 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:44,614 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:44,614 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:44,614 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:44,614 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:44,614 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:44,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:44,615 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2019-09-20 13:31:44,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:44,650 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:44,652 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:44,654 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:44,661 INFO L82 PathProgramCache]: Analyzing trace with hash -229262266, now seen corresponding path program 1 times [2019-09-20 13:31:44,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:44,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:44,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:44,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:44,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:45,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:45,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:45,047 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:45,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:45,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:45,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:45,073 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2019-09-20 13:31:45,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:45,118 INFO L93 Difference]: Finished difference Result 168 states and 194 transitions. [2019-09-20 13:31:45,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:45,120 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:45,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:45,136 INFO L225 Difference]: With dead ends: 168 [2019-09-20 13:31:45,137 INFO L226 Difference]: Without dead ends: 157 [2019-09-20 13:31:45,139 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:45,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-09-20 13:31:45,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-09-20 13:31:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-09-20 13:31:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 182 transitions. [2019-09-20 13:31:45,204 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 182 transitions. Word has length 59 [2019-09-20 13:31:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:45,205 INFO L475 AbstractCegarLoop]: Abstraction has 157 states and 182 transitions. [2019-09-20 13:31:45,205 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:45,205 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 182 transitions. [2019-09-20 13:31:45,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:45,209 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:45,209 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:45,210 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:45,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:45,210 INFO L82 PathProgramCache]: Analyzing trace with hash -751857026, now seen corresponding path program 1 times [2019-09-20 13:31:45,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:45,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:45,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:45,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:45,216 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:45,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:45,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:45,365 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:45,368 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:45,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:45,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:45,370 INFO L87 Difference]: Start difference. First operand 157 states and 182 transitions. Second operand 3 states. [2019-09-20 13:31:45,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:45,395 INFO L93 Difference]: Finished difference Result 148 states and 170 transitions. [2019-09-20 13:31:45,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:45,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:45,399 INFO L225 Difference]: With dead ends: 148 [2019-09-20 13:31:45,399 INFO L226 Difference]: Without dead ends: 148 [2019-09-20 13:31:45,400 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-09-20 13:31:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-09-20 13:31:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-09-20 13:31:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 170 transitions. [2019-09-20 13:31:45,414 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 170 transitions. Word has length 60 [2019-09-20 13:31:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:45,415 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 170 transitions. [2019-09-20 13:31:45,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 170 transitions. [2019-09-20 13:31:45,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:45,420 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:45,420 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:45,424 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:45,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:45,425 INFO L82 PathProgramCache]: Analyzing trace with hash -8533593, now seen corresponding path program 1 times [2019-09-20 13:31:45,425 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:45,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:45,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:45,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:45,429 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:45,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:45,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:45,662 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:45,663 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:45,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:45,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:45,663 INFO L87 Difference]: Start difference. First operand 148 states and 170 transitions. Second operand 7 states. [2019-09-20 13:31:46,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:46,123 INFO L93 Difference]: Finished difference Result 148 states and 169 transitions. [2019-09-20 13:31:46,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:46,124 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:46,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:46,128 INFO L225 Difference]: With dead ends: 148 [2019-09-20 13:31:46,130 INFO L226 Difference]: Without dead ends: 148 [2019-09-20 13:31:46,131 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:46,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-09-20 13:31:46,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-09-20 13:31:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-09-20 13:31:46,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 169 transitions. [2019-09-20 13:31:46,156 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 169 transitions. Word has length 65 [2019-09-20 13:31:46,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:46,158 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 169 transitions. [2019-09-20 13:31:46,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 169 transitions. [2019-09-20 13:31:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-20 13:31:46,162 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:46,162 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:46,163 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:46,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:46,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2138732759, now seen corresponding path program 1 times [2019-09-20 13:31:46,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:46,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:46,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,167 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:46,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:46,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:46,326 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:46,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:46,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:46,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:46,327 INFO L87 Difference]: Start difference. First operand 148 states and 169 transitions. Second operand 5 states. [2019-09-20 13:31:46,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:46,969 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2019-09-20 13:31:46,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:46,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-09-20 13:31:46,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:46,973 INFO L225 Difference]: With dead ends: 256 [2019-09-20 13:31:46,973 INFO L226 Difference]: Without dead ends: 256 [2019-09-20 13:31:46,973 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-09-20 13:31:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 237. [2019-09-20 13:31:46,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2019-09-20 13:31:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 270 transitions. [2019-09-20 13:31:46,992 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 270 transitions. Word has length 78 [2019-09-20 13:31:46,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:46,993 INFO L475 AbstractCegarLoop]: Abstraction has 237 states and 270 transitions. [2019-09-20 13:31:46,993 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 270 transitions. [2019-09-20 13:31:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-20 13:31:46,995 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:46,995 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:46,996 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:46,996 INFO L82 PathProgramCache]: Analyzing trace with hash 2116914143, now seen corresponding path program 1 times [2019-09-20 13:31:46,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:46,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:46,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:46,999 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:47,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:47,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:47,111 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:47,112 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:47,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:47,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:47,114 INFO L87 Difference]: Start difference. First operand 237 states and 270 transitions. Second operand 7 states. [2019-09-20 13:31:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:47,836 INFO L93 Difference]: Finished difference Result 255 states and 296 transitions. [2019-09-20 13:31:47,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:47,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-09-20 13:31:47,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:47,842 INFO L225 Difference]: With dead ends: 255 [2019-09-20 13:31:47,842 INFO L226 Difference]: Without dead ends: 255 [2019-09-20 13:31:47,842 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:31:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2019-09-20 13:31:47,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 236. [2019-09-20 13:31:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-09-20 13:31:47,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 267 transitions. [2019-09-20 13:31:47,857 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 267 transitions. Word has length 92 [2019-09-20 13:31:47,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:47,857 INFO L475 AbstractCegarLoop]: Abstraction has 236 states and 267 transitions. [2019-09-20 13:31:47,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 267 transitions. [2019-09-20 13:31:47,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-20 13:31:47,860 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:47,860 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:47,860 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:47,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:47,861 INFO L82 PathProgramCache]: Analyzing trace with hash 660673946, now seen corresponding path program 1 times [2019-09-20 13:31:47,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:47,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:47,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:47,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:47,864 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:47,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:47,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:47,984 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:47,986 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:47,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:47,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:47,986 INFO L87 Difference]: Start difference. First operand 236 states and 267 transitions. Second operand 6 states. [2019-09-20 13:31:48,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:48,021 INFO L93 Difference]: Finished difference Result 243 states and 274 transitions. [2019-09-20 13:31:48,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:48,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2019-09-20 13:31:48,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:48,027 INFO L225 Difference]: With dead ends: 243 [2019-09-20 13:31:48,027 INFO L226 Difference]: Without dead ends: 243 [2019-09-20 13:31:48,028 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-20 13:31:48,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2019-09-20 13:31:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2019-09-20 13:31:48,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 272 transitions. [2019-09-20 13:31:48,059 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 272 transitions. Word has length 108 [2019-09-20 13:31:48,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:48,060 INFO L475 AbstractCegarLoop]: Abstraction has 241 states and 272 transitions. [2019-09-20 13:31:48,060 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:48,060 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 272 transitions. [2019-09-20 13:31:48,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-20 13:31:48,062 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:48,062 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:48,063 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:48,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1706020648, now seen corresponding path program 1 times [2019-09-20 13:31:48,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:48,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:48,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,071 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:48,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:48,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:48,198 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:48,201 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:48,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:48,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:48,203 INFO L87 Difference]: Start difference. First operand 241 states and 272 transitions. Second operand 8 states. [2019-09-20 13:31:48,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:48,243 INFO L93 Difference]: Finished difference Result 248 states and 279 transitions. [2019-09-20 13:31:48,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:48,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-09-20 13:31:48,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:48,250 INFO L225 Difference]: With dead ends: 248 [2019-09-20 13:31:48,250 INFO L226 Difference]: Without dead ends: 248 [2019-09-20 13:31:48,251 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:48,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2019-09-20 13:31:48,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 245. [2019-09-20 13:31:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-09-20 13:31:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 276 transitions. [2019-09-20 13:31:48,269 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 276 transitions. Word has length 108 [2019-09-20 13:31:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:48,270 INFO L475 AbstractCegarLoop]: Abstraction has 245 states and 276 transitions. [2019-09-20 13:31:48,270 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 276 transitions. [2019-09-20 13:31:48,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-20 13:31:48,274 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:48,275 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:48,275 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:48,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:48,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1946560777, now seen corresponding path program 1 times [2019-09-20 13:31:48,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:48,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:48,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,313 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:48,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:48,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:48,402 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:48,403 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:48,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:48,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:48,404 INFO L87 Difference]: Start difference. First operand 245 states and 276 transitions. Second operand 4 states. [2019-09-20 13:31:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:48,651 INFO L93 Difference]: Finished difference Result 484 states and 567 transitions. [2019-09-20 13:31:48,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:48,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2019-09-20 13:31:48,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:48,656 INFO L225 Difference]: With dead ends: 484 [2019-09-20 13:31:48,656 INFO L226 Difference]: Without dead ends: 484 [2019-09-20 13:31:48,657 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2019-09-20 13:31:48,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 475. [2019-09-20 13:31:48,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-09-20 13:31:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 550 transitions. [2019-09-20 13:31:48,681 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 550 transitions. Word has length 108 [2019-09-20 13:31:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:48,681 INFO L475 AbstractCegarLoop]: Abstraction has 475 states and 550 transitions. [2019-09-20 13:31:48,682 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:48,682 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 550 transitions. [2019-09-20 13:31:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-20 13:31:48,684 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:48,685 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:48,685 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:48,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:48,685 INFO L82 PathProgramCache]: Analyzing trace with hash 79738257, now seen corresponding path program 1 times [2019-09-20 13:31:48,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:48,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:48,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:48,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:48,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:48,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:48,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:48,849 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:48,850 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:48,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:48,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:48,850 INFO L87 Difference]: Start difference. First operand 475 states and 550 transitions. Second operand 9 states. [2019-09-20 13:31:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:50,163 INFO L93 Difference]: Finished difference Result 879 states and 1019 transitions. [2019-09-20 13:31:50,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:50,164 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 112 [2019-09-20 13:31:50,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:50,170 INFO L225 Difference]: With dead ends: 879 [2019-09-20 13:31:50,170 INFO L226 Difference]: Without dead ends: 879 [2019-09-20 13:31:50,170 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-09-20 13:31:50,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 798. [2019-09-20 13:31:50,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2019-09-20 13:31:50,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 913 transitions. [2019-09-20 13:31:50,201 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 913 transitions. Word has length 112 [2019-09-20 13:31:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:50,201 INFO L475 AbstractCegarLoop]: Abstraction has 798 states and 913 transitions. [2019-09-20 13:31:50,202 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 913 transitions. [2019-09-20 13:31:50,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-20 13:31:50,205 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:50,205 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:50,205 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:50,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:50,206 INFO L82 PathProgramCache]: Analyzing trace with hash -992810877, now seen corresponding path program 1 times [2019-09-20 13:31:50,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:50,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:50,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:50,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:50,208 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-20 13:31:50,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:50,359 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:50,360 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2019-09-20 13:31:50,363 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [175], [178], [188], [189], [190], [191], [201], [203], [208], [211], [212], [213], [214], [216], [221], [223], [224], [225], [226], [230], [233], [237], [243], [272], [276], [279], [282], [284], [287], [294], [297], [300], [304], [305], [308], [309], [310], [312], [313], [314], [316], [319], [321], [324], [327], [336], [338], [339], [340], [364], [366], [367], [434], [435], [445], [453], [454], [455], [456], [457], [458], [459], [460], [461], [493], [494], [495], [496], [499], [500], [501], [502], [503], [504], [509], [510], [513], [514], [515], [516], [517], [518], [519], [520], [521], [522], [523], [524], [525], [526], [531], [532], [533], [534], [537], [538], [539], [540], [541], [542], [543], [544], [545], [549], [550], [551], [553], [554], [559], [560], [561] [2019-09-20 13:31:50,419 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:50,419 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:50,510 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:50,512 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:31:50,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:50,517 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:50,576 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:50,576 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:50,585 INFO L420 sIntCurrentIteration]: We unified 173 AI predicates to 173 [2019-09-20 13:31:50,585 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:50,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:50,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:50,586 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:50,587 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:50,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:50,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:50,588 INFO L87 Difference]: Start difference. First operand 798 states and 913 transitions. Second operand 2 states. [2019-09-20 13:31:50,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:50,588 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:50,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:50,589 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-09-20 13:31:50,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:50,589 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:50,589 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:50,590 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:50,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:50,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:50,591 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2019-09-20 13:31:50,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:50,591 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:50,591 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:50,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:50,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:50,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:50 BoogieIcfgContainer [2019-09-20 13:31:50,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:50,600 INFO L168 Benchmark]: Toolchain (without parser) took 8062.29 ms. Allocated memory was 133.2 MB in the beginning and 328.2 MB in the end (delta: 195.0 MB). Free memory was 88.4 MB in the beginning and 156.1 MB in the end (delta: -67.7 MB). Peak memory consumption was 127.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:50,601 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:50,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.10 ms. Allocated memory was 133.2 MB in the beginning and 198.2 MB in the end (delta: 65.0 MB). Free memory was 88.2 MB in the beginning and 162.5 MB in the end (delta: -74.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:50,602 INFO L168 Benchmark]: Boogie Preprocessor took 107.85 ms. Allocated memory is still 198.2 MB. Free memory was 162.5 MB in the beginning and 158.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:50,603 INFO L168 Benchmark]: RCFGBuilder took 1211.06 ms. Allocated memory was 198.2 MB in the beginning and 223.3 MB in the end (delta: 25.2 MB). Free memory was 158.1 MB in the beginning and 185.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:50,604 INFO L168 Benchmark]: TraceAbstraction took 6055.59 ms. Allocated memory was 223.3 MB in the beginning and 328.2 MB in the end (delta: 104.9 MB). Free memory was 185.5 MB in the beginning and 156.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 134.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:50,608 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 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.10 ms. Allocated memory was 133.2 MB in the beginning and 198.2 MB in the end (delta: 65.0 MB). Free memory was 88.2 MB in the beginning and 162.5 MB in the end (delta: -74.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.85 ms. Allocated memory is still 198.2 MB. Free memory was 162.5 MB in the beginning and 158.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.06 ms. Allocated memory was 198.2 MB in the beginning and 223.3 MB in the end (delta: 25.2 MB). Free memory was 158.1 MB in the beginning and 185.5 MB in the end (delta: -27.4 MB). Peak memory consumption was 88.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6055.59 ms. Allocated memory was 223.3 MB in the beginning and 328.2 MB in the end (delta: 104.9 MB). Free memory was 185.5 MB in the beginning and 156.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 134.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 675]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 256 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1704 SDtfs, 1311 SDslu, 3348 SDs, 0 SdLazy, 1921 SolverSat, 504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8265895953757225 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 133 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 964 NumberOfCodeBlocks, 964 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 954 ConstructedInterpolants, 0 QuantifiedInterpolants, 166111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 63/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...