java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:05,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:05,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:05,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:05,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:05,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:05,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:05,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:05,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:05,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:05,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:05,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:05,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:05,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:05,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:05,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:05,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:05,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:05,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:05,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:05,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:05,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:05,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:05,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:05,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:05,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:05,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:05,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:05,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:05,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:05,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:05,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:05,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:05,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:05,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:05,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:05,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:05,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:05,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:05,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:05,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:05,649 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 02:49:05,665 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:05,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:05,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:05,666 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:05,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:05,667 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:05,667 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:05,667 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:05,667 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:05,667 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:05,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:05,669 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:05,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:05,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:05,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:05,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:05,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:05,670 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:05,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:05,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:05,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:05,671 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:05,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:05,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:05,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:05,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:05,672 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:05,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:05,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:05,672 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:05,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:05,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:05,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:05,722 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:05,723 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:05,724 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_productSimulator.cil.c [2019-09-10 02:49:05,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44621dd62/dc2fb1fb2adf411eb572397b3e85f477/FLAG549689c96 [2019-09-10 02:49:06,377 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:06,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_productSimulator.cil.c [2019-09-10 02:49:06,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44621dd62/dc2fb1fb2adf411eb572397b3e85f477/FLAG549689c96 [2019-09-10 02:49:06,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44621dd62/dc2fb1fb2adf411eb572397b3e85f477 [2019-09-10 02:49:06,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:06,652 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:06,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:06,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:06,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:06,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:06" (1/1) ... [2019-09-10 02:49:06,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc6461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:06, skipping insertion in model container [2019-09-10 02:49:06,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:06" (1/1) ... [2019-09-10 02:49:06,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:06,734 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:07,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:07,247 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:07,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:07,408 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:07,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07 WrapperNode [2019-09-10 02:49:07,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:07,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:07,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:07,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:07,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (1/1) ... [2019-09-10 02:49:07,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:07,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:07,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:07,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:07,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (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 02:49:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:07,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:07,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:49:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:49:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2019-09-10 02:49:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2019-09-10 02:49:07,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2019-09-10 02:49:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2019-09-10 02:49:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2019-09-10 02:49:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2019-09-10 02:49:07,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2019-09-10 02:49:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2019-09-10 02:49:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:07,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:49:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:49:07,590 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:49:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:07,591 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:07,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:07,592 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:07,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:49:07,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:49:07,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:07,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:07,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:07,594 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:07,594 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:49:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:49:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:49:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:49:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2019-09-10 02:49:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:49:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2019-09-10 02:49:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2019-09-10 02:49:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:49:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2019-09-10 02:49:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2019-09-10 02:49:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2019-09-10 02:49:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2019-09-10 02:49:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2019-09-10 02:49:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:49:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:08,782 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:08,783 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:08,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:08 BoogieIcfgContainer [2019-09-10 02:49:08,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:08,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:08,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:08,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:08,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:06" (1/3) ... [2019-09-10 02:49:08,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1741e037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:08, skipping insertion in model container [2019-09-10 02:49:08,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:07" (2/3) ... [2019-09-10 02:49:08,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1741e037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:08, skipping insertion in model container [2019-09-10 02:49:08,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:08" (3/3) ... [2019-09-10 02:49:08,793 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_productSimulator.cil.c [2019-09-10 02:49:08,803 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:08,812 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:08,828 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:08,857 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:08,857 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:08,857 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:08,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:08,858 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:08,858 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:08,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:08,858 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:08,880 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states. [2019-09-10 02:49:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:49:08,898 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:08,899 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:08,901 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:08,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:08,908 INFO L82 PathProgramCache]: Analyzing trace with hash 2065144369, now seen corresponding path program 1 times [2019-09-10 02:49:08,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:08,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:08,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:08,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:08,968 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:09,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:09,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:09,284 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:09,294 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:09,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:09,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:09,316 INFO L87 Difference]: Start difference. First operand 247 states. Second operand 2 states. [2019-09-10 02:49:09,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:09,386 INFO L93 Difference]: Finished difference Result 215 states and 263 transitions. [2019-09-10 02:49:09,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:09,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 83 [2019-09-10 02:49:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:09,415 INFO L225 Difference]: With dead ends: 215 [2019-09-10 02:49:09,416 INFO L226 Difference]: Without dead ends: 204 [2019-09-10 02:49:09,418 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 02:49:09,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-09-10 02:49:09,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2019-09-10 02:49:09,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2019-09-10 02:49:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 251 transitions. [2019-09-10 02:49:09,518 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 251 transitions. Word has length 83 [2019-09-10 02:49:09,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:09,521 INFO L475 AbstractCegarLoop]: Abstraction has 204 states and 251 transitions. [2019-09-10 02:49:09,521 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 251 transitions. [2019-09-10 02:49:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 02:49:09,529 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:09,529 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:09,530 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:09,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:09,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1458323181, now seen corresponding path program 1 times [2019-09-10 02:49:09,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:09,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:09,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,535 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:09,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:09,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:09,756 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:09,758 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:09,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:09,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:09,759 INFO L87 Difference]: Start difference. First operand 204 states and 251 transitions. Second operand 3 states. [2019-09-10 02:49:09,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:09,792 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2019-09-10 02:49:09,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:09,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-09-10 02:49:09,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:09,801 INFO L225 Difference]: With dead ends: 195 [2019-09-10 02:49:09,801 INFO L226 Difference]: Without dead ends: 195 [2019-09-10 02:49:09,802 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 02:49:09,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-09-10 02:49:09,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2019-09-10 02:49:09,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-09-10 02:49:09,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 239 transitions. [2019-09-10 02:49:09,823 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 239 transitions. Word has length 84 [2019-09-10 02:49:09,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:09,824 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 239 transitions. [2019-09-10 02:49:09,824 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:09,824 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 239 transitions. [2019-09-10 02:49:09,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:09,827 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:09,827 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:09,830 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:09,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:09,831 INFO L82 PathProgramCache]: Analyzing trace with hash 481269972, now seen corresponding path program 1 times [2019-09-10 02:49:09,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:09,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:09,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,832 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:10,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:10,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 02:49:10,095 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:10,096 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 02:49:10,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 02:49:10,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:10,097 INFO L87 Difference]: Start difference. First operand 195 states and 239 transitions. Second operand 9 states. [2019-09-10 02:49:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:11,686 INFO L93 Difference]: Finished difference Result 398 states and 498 transitions. [2019-09-10 02:49:11,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 02:49:11,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2019-09-10 02:49:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:11,692 INFO L225 Difference]: With dead ends: 398 [2019-09-10 02:49:11,693 INFO L226 Difference]: Without dead ends: 398 [2019-09-10 02:49:11,693 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-09-10 02:49:11,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-09-10 02:49:11,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 386. [2019-09-10 02:49:11,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2019-09-10 02:49:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 486 transitions. [2019-09-10 02:49:11,758 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 486 transitions. Word has length 89 [2019-09-10 02:49:11,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:11,759 INFO L475 AbstractCegarLoop]: Abstraction has 386 states and 486 transitions. [2019-09-10 02:49:11,759 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 02:49:11,760 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 486 transitions. [2019-09-10 02:49:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-10 02:49:11,766 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:11,766 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:11,766 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:11,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:11,767 INFO L82 PathProgramCache]: Analyzing trace with hash -678987685, now seen corresponding path program 1 times [2019-09-10 02:49:11,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:11,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:11,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,770 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:11,916 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:11,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:11,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:11,916 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:11,917 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:11,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:11,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:11,921 INFO L87 Difference]: Start difference. First operand 386 states and 486 transitions. Second operand 6 states. [2019-09-10 02:49:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:12,195 INFO L93 Difference]: Finished difference Result 709 states and 896 transitions. [2019-09-10 02:49:12,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:12,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2019-09-10 02:49:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:12,201 INFO L225 Difference]: With dead ends: 709 [2019-09-10 02:49:12,201 INFO L226 Difference]: Without dead ends: 709 [2019-09-10 02:49:12,202 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-09-10 02:49:12,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 703. [2019-09-10 02:49:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-09-10 02:49:12,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 890 transitions. [2019-09-10 02:49:12,249 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 890 transitions. Word has length 95 [2019-09-10 02:49:12,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:12,250 INFO L475 AbstractCegarLoop]: Abstraction has 703 states and 890 transitions. [2019-09-10 02:49:12,250 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:12,251 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 890 transitions. [2019-09-10 02:49:12,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-10 02:49:12,255 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:12,255 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:12,256 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:12,256 INFO L82 PathProgramCache]: Analyzing trace with hash -319049537, now seen corresponding path program 1 times [2019-09-10 02:49:12,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:12,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:12,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:12,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:12,258 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:12,439 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:12,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:12,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:12,439 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:12,440 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:12,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:12,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:12,441 INFO L87 Difference]: Start difference. First operand 703 states and 890 transitions. Second operand 7 states. [2019-09-10 02:49:13,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:13,511 INFO L93 Difference]: Finished difference Result 1218 states and 1620 transitions. [2019-09-10 02:49:13,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:49:13,511 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2019-09-10 02:49:13,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:13,520 INFO L225 Difference]: With dead ends: 1218 [2019-09-10 02:49:13,520 INFO L226 Difference]: Without dead ends: 1218 [2019-09-10 02:49:13,521 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:49:13,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2019-09-10 02:49:13,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1108. [2019-09-10 02:49:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1108 states. [2019-09-10 02:49:13,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1429 transitions. [2019-09-10 02:49:13,585 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1429 transitions. Word has length 99 [2019-09-10 02:49:13,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:13,586 INFO L475 AbstractCegarLoop]: Abstraction has 1108 states and 1429 transitions. [2019-09-10 02:49:13,586 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:13,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1429 transitions. [2019-09-10 02:49:13,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-10 02:49:13,590 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:13,590 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:13,590 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:13,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:13,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1144263416, now seen corresponding path program 1 times [2019-09-10 02:49:13,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:13,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:13,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:13,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:13,592 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:13,704 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:13,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:13,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:13,706 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:13,707 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:13,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:13,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:13,707 INFO L87 Difference]: Start difference. First operand 1108 states and 1429 transitions. Second operand 6 states. [2019-09-10 02:49:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:13,753 INFO L93 Difference]: Finished difference Result 1136 states and 1461 transitions. [2019-09-10 02:49:13,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:13,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2019-09-10 02:49:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:13,762 INFO L225 Difference]: With dead ends: 1136 [2019-09-10 02:49:13,762 INFO L226 Difference]: Without dead ends: 1136 [2019-09-10 02:49:13,763 INFO L628 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 [2019-09-10 02:49:13,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2019-09-10 02:49:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1128. [2019-09-10 02:49:13,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-09-10 02:49:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1449 transitions. [2019-09-10 02:49:13,858 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1449 transitions. Word has length 132 [2019-09-10 02:49:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:13,858 INFO L475 AbstractCegarLoop]: Abstraction has 1128 states and 1449 transitions. [2019-09-10 02:49:13,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1449 transitions. [2019-09-10 02:49:13,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-10 02:49:13,862 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:13,862 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:13,863 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:13,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:13,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1305336714, now seen corresponding path program 1 times [2019-09-10 02:49:13,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:13,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:13,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:13,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:13,865 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:14,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:14,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 02:49:14,006 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:14,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 02:49:14,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 02:49:14,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:14,008 INFO L87 Difference]: Start difference. First operand 1128 states and 1449 transitions. Second operand 9 states. [2019-09-10 02:49:14,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:14,318 INFO L93 Difference]: Finished difference Result 1156 states and 1477 transitions. [2019-09-10 02:49:14,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 02:49:14,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 132 [2019-09-10 02:49:14,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:14,327 INFO L225 Difference]: With dead ends: 1156 [2019-09-10 02:49:14,327 INFO L226 Difference]: Without dead ends: 1156 [2019-09-10 02:49:14,327 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2019-09-10 02:49:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2019-09-10 02:49:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1144. [2019-09-10 02:49:14,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1144 states. [2019-09-10 02:49:14,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1465 transitions. [2019-09-10 02:49:14,374 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1465 transitions. Word has length 132 [2019-09-10 02:49:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:14,375 INFO L475 AbstractCegarLoop]: Abstraction has 1144 states and 1465 transitions. [2019-09-10 02:49:14,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 02:49:14,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1465 transitions. [2019-09-10 02:49:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-10 02:49:14,379 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:14,379 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:14,379 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:14,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:14,380 INFO L82 PathProgramCache]: Analyzing trace with hash 856640075, now seen corresponding path program 1 times [2019-09-10 02:49:14,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:14,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:14,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:14,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:14,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:14,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:14,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:49:14,476 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:14,477 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:49:14,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:49:14,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:49:14,478 INFO L87 Difference]: Start difference. First operand 1144 states and 1465 transitions. Second operand 4 states. [2019-09-10 02:49:14,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:14,905 INFO L93 Difference]: Finished difference Result 2463 states and 3313 transitions. [2019-09-10 02:49:14,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:49:14,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2019-09-10 02:49:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:14,922 INFO L225 Difference]: With dead ends: 2463 [2019-09-10 02:49:14,922 INFO L226 Difference]: Without dead ends: 2463 [2019-09-10 02:49:14,923 INFO L628 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 [2019-09-10 02:49:14,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2019-09-10 02:49:15,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 2432. [2019-09-10 02:49:15,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2432 states. [2019-09-10 02:49:15,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3241 transitions. [2019-09-10 02:49:15,033 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3241 transitions. Word has length 132 [2019-09-10 02:49:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:15,034 INFO L475 AbstractCegarLoop]: Abstraction has 2432 states and 3241 transitions. [2019-09-10 02:49:15,034 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:49:15,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3241 transitions. [2019-09-10 02:49:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-10 02:49:15,039 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:15,040 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:15,040 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:15,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:15,040 INFO L82 PathProgramCache]: Analyzing trace with hash 2033559269, now seen corresponding path program 1 times [2019-09-10 02:49:15,040 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:15,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:15,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:15,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:15,042 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:49:15,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:15,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:15,178 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:15,179 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:15,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:15,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:15,180 INFO L87 Difference]: Start difference. First operand 2432 states and 3241 transitions. Second operand 3 states. [2019-09-10 02:49:15,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:15,250 INFO L93 Difference]: Finished difference Result 4016 states and 5505 transitions. [2019-09-10 02:49:15,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:15,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-09-10 02:49:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:15,281 INFO L225 Difference]: With dead ends: 4016 [2019-09-10 02:49:15,281 INFO L226 Difference]: Without dead ends: 4016 [2019-09-10 02:49:15,282 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 02:49:15,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2019-09-10 02:49:15,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 3884. [2019-09-10 02:49:15,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3884 states. [2019-09-10 02:49:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3884 states to 3884 states and 5351 transitions. [2019-09-10 02:49:15,515 INFO L78 Accepts]: Start accepts. Automaton has 3884 states and 5351 transitions. Word has length 136 [2019-09-10 02:49:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:15,516 INFO L475 AbstractCegarLoop]: Abstraction has 3884 states and 5351 transitions. [2019-09-10 02:49:15,516 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:15,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3884 states and 5351 transitions. [2019-09-10 02:49:15,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-10 02:49:15,532 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:15,533 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 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, 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] [2019-09-10 02:49:15,533 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:15,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:15,533 INFO L82 PathProgramCache]: Analyzing trace with hash -94301990, now seen corresponding path program 1 times [2019-09-10 02:49:15,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:15,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:15,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:15,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:15,536 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-09-10 02:49:15,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:49:15,693 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:49:15,694 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2019-09-10 02:49:15,704 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [95], [97], [100], [110], [122], [124], [126], [128], [130], [132], [134], [135], [162], [166], [167], [172], [174], [175], [184], [188], [192], [195], [198], [200], [203], [206], [208], [211], [217], [261], [262], [263], [265], [268], [270], [273], [276], [279], [287], [297], [298], [303], [305], [308], [310], [315], [317], [318], [319], [320], [323], [326], [330], [336], [365], [369], [370], [375], [379], [380], [387], [389], [390], [391], [411], [412], [415], [417], [419], [511], [512], [513], [514], [519], [521], [524], [532], [533], [534], [535], [536], [537], [538], [539], [540], [574], [575], [576], [577], [584], [585], [586], [587], [588], [589], [590], [591], [592], [593], [594], [595], [602], [603], [604], [605], [606], [607], [612], [613], [624], [625], [626], [627], [628], [632], [633], [634], [635], [636], [637], [638], [639], [640], [641], [648], [649], [658], [659], [660], [661], [664], [665], [666], [674], [675], [676] [2019-09-10 02:49:15,755 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:49:15,755 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:49:15,840 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:49:15,842 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 85 root evaluator evaluations with a maximum evaluation depth of 0. Performed 85 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 144 variables. [2019-09-10 02:49:15,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:15,846 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:49:15,907 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:49:15,907 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:49:15,912 INFO L420 sIntCurrentIteration]: We unified 185 AI predicates to 185 [2019-09-10 02:49:15,913 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:49:15,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:49:15,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-09-10 02:49:15,914 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:15,915 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:15,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:15,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:15,915 INFO L87 Difference]: Start difference. First operand 3884 states and 5351 transitions. Second operand 2 states. [2019-09-10 02:49:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:15,916 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:49:15,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:15,916 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 186 [2019-09-10 02:49:15,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:15,917 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:49:15,917 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:15,917 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 185 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 02:49:15,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:15,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:15,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:15,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:15,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 186 [2019-09-10 02:49:15,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:15,918 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:15,918 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:15,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:15,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:15,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:15 BoogieIcfgContainer [2019-09-10 02:49:15,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:15,927 INFO L168 Benchmark]: Toolchain (without parser) took 9273.93 ms. Allocated memory was 142.6 MB in the beginning and 340.3 MB in the end (delta: 197.7 MB). Free memory was 89.4 MB in the beginning and 268.8 MB in the end (delta: -179.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:15,927 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 142.6 MB. Free memory was 108.9 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:15,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.30 ms. Allocated memory was 142.6 MB in the beginning and 202.9 MB in the end (delta: 60.3 MB). Free memory was 89.0 MB in the beginning and 165.5 MB in the end (delta: -76.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:15,929 INFO L168 Benchmark]: Boogie Preprocessor took 100.89 ms. Allocated memory is still 202.9 MB. Free memory was 165.5 MB in the beginning and 160.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:15,930 INFO L168 Benchmark]: RCFGBuilder took 1274.01 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 160.8 MB in the beginning and 184.2 MB in the end (delta: -23.4 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:15,931 INFO L168 Benchmark]: TraceAbstraction took 7138.65 ms. Allocated memory was 232.8 MB in the beginning and 340.3 MB in the end (delta: 107.5 MB). Free memory was 184.2 MB in the beginning and 268.8 MB in the end (delta: -84.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:15,940 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 142.6 MB. Free memory was 108.9 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.30 ms. Allocated memory was 142.6 MB in the beginning and 202.9 MB in the end (delta: 60.3 MB). Free memory was 89.0 MB in the beginning and 165.5 MB in the end (delta: -76.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.89 ms. Allocated memory is still 202.9 MB. Free memory was 165.5 MB in the beginning and 160.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1274.01 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 160.8 MB in the beginning and 184.2 MB in the end (delta: -23.4 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7138.65 ms. Allocated memory was 232.8 MB in the beginning and 340.3 MB in the end (delta: 107.5 MB). Free memory was 184.2 MB in the beginning and 268.8 MB in the end (delta: -84.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1087]: 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 49 procedures, 303 locations, 1 error locations. SAFE Result, 7.0s OverallTime, 10 OverallIterations, 6 TraceHistogramMax, 4.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2440 SDtfs, 1963 SDslu, 5201 SDs, 0 SdLazy, 1800 SolverSat, 726 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 279 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3884occurred 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, 0.827027027027027 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 311 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1168 NumberOfCodeBlocks, 1168 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1158 ConstructedInterpolants, 0 QuantifiedInterpolants, 213174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 483/489 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...