/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:59:09,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:59:09,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:59:09,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:59:09,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:59:09,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:59:09,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:59:09,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:59:09,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:59:09,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:59:09,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:59:09,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:59:09,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:59:09,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:59:09,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:59:09,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:59:09,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:59:09,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:59:09,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:59:09,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:59:09,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:59:09,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:59:09,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:59:09,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:59:09,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:59:09,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:59:09,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:59:09,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:59:09,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:59:09,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:59:09,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:59:09,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:59:09,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:59:09,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:59:09,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:59:09,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:59:09,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:59:09,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:59:09,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:59:09,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:59:09,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:59:09,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:59:09,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:59:09,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:59:09,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:59:09,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:59:09,646 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:59:09,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:59:09,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:59:09,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:59:09,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:59:09,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:59:09,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:59:09,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:59:09,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:59:09,648 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:59:09,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:59:09,648 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:59:09,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:59:09,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:59:09,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:59:09,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:59:09,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:59:09,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:59:09,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:59:09,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:59:09,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:59:09,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:59:09,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:59:09,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:59:09,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:59:09,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:59:09,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:59:09,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:59:09,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:59:09,937 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:59:09,937 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product58.cil.c [2019-11-06 21:59:10,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e626ae22c/c0e049a19f654b55ac9e81fa55760ec4/FLAG40bdd5344 [2019-11-06 21:59:10,527 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:59:10,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product58.cil.c [2019-11-06 21:59:10,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e626ae22c/c0e049a19f654b55ac9e81fa55760ec4/FLAG40bdd5344 [2019-11-06 21:59:10,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e626ae22c/c0e049a19f654b55ac9e81fa55760ec4 [2019-11-06 21:59:10,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:59:10,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:59:10,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:59:10,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:59:10,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:59:10,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:10" (1/1) ... [2019-11-06 21:59:10,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312b99b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:10, skipping insertion in model container [2019-11-06 21:59:10,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:10" (1/1) ... [2019-11-06 21:59:10,852 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:59:10,909 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:59:11,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:59:11,303 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:59:11,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:59:11,458 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:59:11,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11 WrapperNode [2019-11-06 21:59:11,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:59:11,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:59:11,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:59:11,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:59:11,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (1/1) ... [2019-11-06 21:59:11,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (1/1) ... [2019-11-06 21:59:11,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (1/1) ... [2019-11-06 21:59:11,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (1/1) ... [2019-11-06 21:59:11,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (1/1) ... [2019-11-06 21:59:11,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (1/1) ... [2019-11-06 21:59:11,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (1/1) ... [2019-11-06 21:59:11,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:59:11,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:59:11,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:59:11,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:59:11,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (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 [2019-11-06 21:59:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:59:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:59:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:59:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 21:59:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 21:59:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 21:59:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 21:59:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 21:59:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 21:59:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 21:59:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 21:59:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:59:11,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:59:11,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:59:11,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:59:11,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:59:11,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:59:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:59:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:59:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 21:59:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 21:59:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 21:59:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-06 21:59:11,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 21:59:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 21:59:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 21:59:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 21:59:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 21:59:11,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 21:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 21:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-06 21:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:59:11,649 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:59:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:59:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:59:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:59:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:59:11,650 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:59:11,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:59:11,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:59:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:59:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:59:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:59:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 21:59:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 21:59:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 21:59:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 21:59:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 21:59:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 21:59:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 21:59:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 21:59:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:59:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:59:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:59:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:59:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:59:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:59:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:59:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:59:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:59:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:59:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:59:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:59:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:59:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:59:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:59:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:59:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:59:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-06 21:59:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:59:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:59:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:59:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 21:59:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 21:59:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 21:59:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 21:59:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:59:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 21:59:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 21:59:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 21:59:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 21:59:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 21:59:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-06 21:59:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 21:59:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:59:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:59:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:59:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:59:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:59:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:59:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:59:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:59:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:59:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:59:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:59:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:59:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:59:12,731 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:59:12,731 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 21:59:12,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:12 BoogieIcfgContainer [2019-11-06 21:59:12,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:59:12,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:59:12,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:59:12,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:59:12,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:10" (1/3) ... [2019-11-06 21:59:12,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eee96ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:12, skipping insertion in model container [2019-11-06 21:59:12,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:11" (2/3) ... [2019-11-06 21:59:12,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eee96ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:12, skipping insertion in model container [2019-11-06 21:59:12,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:12" (3/3) ... [2019-11-06 21:59:12,741 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2019-11-06 21:59:12,751 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:59:12,760 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:59:12,772 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:59:12,798 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:59:12,798 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:59:12,798 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:59:12,799 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:59:12,799 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:59:12,799 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:59:12,799 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:59:12,799 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:59:12,823 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2019-11-06 21:59:12,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-06 21:59:12,833 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:12,834 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:12,836 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:12,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:12,842 INFO L82 PathProgramCache]: Analyzing trace with hash 596163892, now seen corresponding path program 1 times [2019-11-06 21:59:12,852 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:12,852 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339393610] [2019-11-06 21:59:12,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,542 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:13,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:13,670 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339393610] [2019-11-06 21:59:13,671 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:13,671 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 21:59:13,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21288212] [2019-11-06 21:59:13,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:59:13,677 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:13,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:59:13,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:59:13,695 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 4 states. [2019-11-06 21:59:14,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:14,885 INFO L93 Difference]: Finished difference Result 332 states and 427 transitions. [2019-11-06 21:59:14,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:59:14,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-11-06 21:59:14,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:14,902 INFO L225 Difference]: With dead ends: 332 [2019-11-06 21:59:14,902 INFO L226 Difference]: Without dead ends: 184 [2019-11-06 21:59:14,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 21:59:14,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-11-06 21:59:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 149. [2019-11-06 21:59:15,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-06 21:59:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 174 transitions. [2019-11-06 21:59:15,005 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 174 transitions. Word has length 51 [2019-11-06 21:59:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:15,006 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 174 transitions. [2019-11-06 21:59:15,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:59:15,006 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 174 transitions. [2019-11-06 21:59:15,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-06 21:59:15,009 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:15,010 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:15,010 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:15,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:15,010 INFO L82 PathProgramCache]: Analyzing trace with hash 2035101120, now seen corresponding path program 1 times [2019-11-06 21:59:15,011 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:15,011 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059159717] [2019-11-06 21:59:15,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,346 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:15,393 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059159717] [2019-11-06 21:59:15,394 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:15,394 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:59:15,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468292871] [2019-11-06 21:59:15,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-06 21:59:15,396 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:15,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-06 21:59:15,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-06 21:59:15,397 INFO L87 Difference]: Start difference. First operand 149 states and 174 transitions. Second operand 5 states. [2019-11-06 21:59:15,917 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:16,952 INFO L93 Difference]: Finished difference Result 273 states and 334 transitions. [2019-11-06 21:59:16,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:59:16,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-11-06 21:59:16,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:16,957 INFO L225 Difference]: With dead ends: 273 [2019-11-06 21:59:16,958 INFO L226 Difference]: Without dead ends: 174 [2019-11-06 21:59:16,959 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:59:16,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-11-06 21:59:17,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2019-11-06 21:59:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-06 21:59:17,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2019-11-06 21:59:17,021 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 52 [2019-11-06 21:59:17,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:17,021 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2019-11-06 21:59:17,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-06 21:59:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2019-11-06 21:59:17,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-06 21:59:17,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:17,028 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:17,028 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:17,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:17,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2037013755, now seen corresponding path program 1 times [2019-11-06 21:59:17,031 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:17,031 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694358203] [2019-11-06 21:59:17,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,423 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:17,510 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694358203] [2019-11-06 21:59:17,510 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:17,510 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:59:17,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488185358] [2019-11-06 21:59:17,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:59:17,511 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:17,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:59:17,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:59:17,512 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand 9 states. [2019-11-06 21:59:17,953 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:18,326 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:18,581 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:18,841 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:20,361 INFO L93 Difference]: Finished difference Result 286 states and 353 transitions. [2019-11-06 21:59:20,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 21:59:20,362 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-11-06 21:59:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:20,366 INFO L225 Difference]: With dead ends: 286 [2019-11-06 21:59:20,366 INFO L226 Difference]: Without dead ends: 174 [2019-11-06 21:59:20,368 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-11-06 21:59:20,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-11-06 21:59:20,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2019-11-06 21:59:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-06 21:59:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 161 transitions. [2019-11-06 21:59:20,407 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 161 transitions. Word has length 57 [2019-11-06 21:59:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:20,408 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 161 transitions. [2019-11-06 21:59:20,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:59:20,408 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 161 transitions. [2019-11-06 21:59:20,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-06 21:59:20,410 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:20,410 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:20,411 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:20,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1760955875, now seen corresponding path program 1 times [2019-11-06 21:59:20,411 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:20,412 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161159827] [2019-11-06 21:59:20,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,734 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:20,817 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161159827] [2019-11-06 21:59:20,818 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:20,818 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 21:59:20,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514399581] [2019-11-06 21:59:20,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 21:59:20,819 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:20,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 21:59:20,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-06 21:59:20,819 INFO L87 Difference]: Start difference. First operand 140 states and 161 transitions. Second operand 7 states. [2019-11-06 21:59:21,200 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:22,437 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:23,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:23,193 INFO L93 Difference]: Finished difference Result 385 states and 481 transitions. [2019-11-06 21:59:23,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 21:59:23,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-11-06 21:59:23,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:23,197 INFO L225 Difference]: With dead ends: 385 [2019-11-06 21:59:23,197 INFO L226 Difference]: Without dead ends: 273 [2019-11-06 21:59:23,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-11-06 21:59:23,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2019-11-06 21:59:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 224. [2019-11-06 21:59:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-06 21:59:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2019-11-06 21:59:23,262 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 70 [2019-11-06 21:59:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:23,262 INFO L462 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2019-11-06 21:59:23,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 21:59:23,263 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2019-11-06 21:59:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-06 21:59:23,265 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:23,265 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:23,265 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:23,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:23,266 INFO L82 PathProgramCache]: Analyzing trace with hash 454740656, now seen corresponding path program 1 times [2019-11-06 21:59:23,266 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:23,266 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985980285] [2019-11-06 21:59:23,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,591 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:23,703 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985980285] [2019-11-06 21:59:23,704 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:23,704 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:59:23,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218460970] [2019-11-06 21:59:23,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:59:23,706 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:23,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:59:23,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:59:23,707 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand 9 states. [2019-11-06 21:59:24,264 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:25,437 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:25,791 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:26,389 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:26,649 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:27,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:27,902 INFO L93 Difference]: Finished difference Result 668 states and 834 transitions. [2019-11-06 21:59:27,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 21:59:27,902 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2019-11-06 21:59:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:27,908 INFO L225 Difference]: With dead ends: 668 [2019-11-06 21:59:27,908 INFO L226 Difference]: Without dead ends: 472 [2019-11-06 21:59:27,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-11-06 21:59:27,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2019-11-06 21:59:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 396. [2019-11-06 21:59:28,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-11-06 21:59:28,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 452 transitions. [2019-11-06 21:59:28,010 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 452 transitions. Word has length 84 [2019-11-06 21:59:28,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:28,010 INFO L462 AbstractCegarLoop]: Abstraction has 396 states and 452 transitions. [2019-11-06 21:59:28,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:59:28,010 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 452 transitions. [2019-11-06 21:59:28,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:59:28,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:28,012 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:28,013 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:28,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:28,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1923981492, now seen corresponding path program 1 times [2019-11-06 21:59:28,013 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:28,014 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705548803] [2019-11-06 21:59:28,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,321 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:28,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:28,481 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705548803] [2019-11-06 21:59:28,482 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:28,483 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:59:28,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011427026] [2019-11-06 21:59:28,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:59:28,484 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:28,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:59:28,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:59:28,485 INFO L87 Difference]: Start difference. First operand 396 states and 452 transitions. Second operand 10 states. [2019-11-06 21:59:29,016 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:30,421 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:31,750 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:32,008 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:32,321 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:32,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:32,715 INFO L93 Difference]: Finished difference Result 878 states and 1079 transitions. [2019-11-06 21:59:32,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-06 21:59:32,716 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-11-06 21:59:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:32,720 INFO L225 Difference]: With dead ends: 878 [2019-11-06 21:59:32,720 INFO L226 Difference]: Without dead ends: 510 [2019-11-06 21:59:32,722 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2019-11-06 21:59:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2019-11-06 21:59:32,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 395. [2019-11-06 21:59:32,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-11-06 21:59:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 449 transitions. [2019-11-06 21:59:32,795 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 449 transitions. Word has length 88 [2019-11-06 21:59:32,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:32,796 INFO L462 AbstractCegarLoop]: Abstraction has 395 states and 449 transitions. [2019-11-06 21:59:32,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:59:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 449 transitions. [2019-11-06 21:59:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-06 21:59:32,798 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:32,798 INFO L410 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] [2019-11-06 21:59:32,799 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:32,799 INFO L82 PathProgramCache]: Analyzing trace with hash -282041291, now seen corresponding path program 1 times [2019-11-06 21:59:32,799 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:32,800 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161137718] [2019-11-06 21:59:32,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,056 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 21:59:33,218 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161137718] [2019-11-06 21:59:33,219 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:33,219 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:59:33,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433440994] [2019-11-06 21:59:33,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:59:33,220 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:33,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:59:33,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:59:33,220 INFO L87 Difference]: Start difference. First operand 395 states and 449 transitions. Second operand 10 states. [2019-11-06 21:59:34,378 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 21:59:34,656 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 21:59:34,936 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:35,208 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:36,325 INFO L93 Difference]: Finished difference Result 885 states and 1108 transitions. [2019-11-06 21:59:36,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 21:59:36,326 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-11-06 21:59:36,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:36,331 INFO L225 Difference]: With dead ends: 885 [2019-11-06 21:59:36,331 INFO L226 Difference]: Without dead ends: 518 [2019-11-06 21:59:36,333 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:59:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2019-11-06 21:59:36,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 405. [2019-11-06 21:59:36,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-11-06 21:59:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 459 transitions. [2019-11-06 21:59:36,430 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 459 transitions. Word has length 104 [2019-11-06 21:59:36,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:36,431 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 459 transitions. [2019-11-06 21:59:36,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:59:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 459 transitions. [2019-11-06 21:59:36,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-06 21:59:36,435 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:36,435 INFO L410 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] [2019-11-06 21:59:36,435 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:36,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:36,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1646231411, now seen corresponding path program 1 times [2019-11-06 21:59:36,436 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:36,436 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781967371] [2019-11-06 21:59:36,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,733 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 21:59:36,882 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781967371] [2019-11-06 21:59:36,883 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:36,884 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 21:59:36,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105006046] [2019-11-06 21:59:36,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 21:59:36,890 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:36,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 21:59:36,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-06 21:59:36,893 INFO L87 Difference]: Start difference. First operand 405 states and 459 transitions. Second operand 12 states. [2019-11-06 21:59:37,807 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:38,084 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:38,347 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:39,226 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:39,521 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:39,790 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 21:59:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:41,387 INFO L93 Difference]: Finished difference Result 905 states and 1130 transitions. [2019-11-06 21:59:41,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 21:59:41,391 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 104 [2019-11-06 21:59:41,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:41,395 INFO L225 Difference]: With dead ends: 905 [2019-11-06 21:59:41,396 INFO L226 Difference]: Without dead ends: 528 [2019-11-06 21:59:41,397 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-11-06 21:59:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2019-11-06 21:59:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 413. [2019-11-06 21:59:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-11-06 21:59:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 467 transitions. [2019-11-06 21:59:41,485 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 467 transitions. Word has length 104 [2019-11-06 21:59:41,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:41,486 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 467 transitions. [2019-11-06 21:59:41,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 21:59:41,487 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 467 transitions. [2019-11-06 21:59:41,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-06 21:59:41,488 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:41,489 INFO L410 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] [2019-11-06 21:59:41,489 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:41,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1405691282, now seen corresponding path program 1 times [2019-11-06 21:59:41,490 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:41,490 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084404978] [2019-11-06 21:59:41,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,803 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 21:59:41,985 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084404978] [2019-11-06 21:59:41,985 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:59:41,986 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:59:41,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715038103] [2019-11-06 21:59:41,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:59:41,987 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:41,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:59:41,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:59:41,987 INFO L87 Difference]: Start difference. First operand 413 states and 467 transitions. Second operand 8 states. [2019-11-06 21:59:42,464 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:43,064 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 21:59:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:45,851 INFO L93 Difference]: Finished difference Result 1253 states and 1617 transitions. [2019-11-06 21:59:45,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-06 21:59:45,852 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-11-06 21:59:45,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:45,858 INFO L225 Difference]: With dead ends: 1253 [2019-11-06 21:59:45,858 INFO L226 Difference]: Without dead ends: 868 [2019-11-06 21:59:45,860 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2019-11-06 21:59:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2019-11-06 21:59:46,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 723. [2019-11-06 21:59:46,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-11-06 21:59:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 845 transitions. [2019-11-06 21:59:46,088 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 845 transitions. Word has length 104 [2019-11-06 21:59:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:46,091 INFO L462 AbstractCegarLoop]: Abstraction has 723 states and 845 transitions. [2019-11-06 21:59:46,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 21:59:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 845 transitions. [2019-11-06 21:59:46,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-06 21:59:46,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:46,095 INFO L410 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] [2019-11-06 21:59:46,095 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:46,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1820843884, now seen corresponding path program 1 times [2019-11-06 21:59:46,096 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:46,097 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601998159] [2019-11-06 21:59:46,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,511 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 21:59:46,739 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601998159] [2019-11-06 21:59:46,739 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461875571] [2019-11-06 21:59:46,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:59:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:46,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-06 21:59:46,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:59:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:59:47,163 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:59:47,163 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2019-11-06 21:59:47,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154704763] [2019-11-06 21:59:47,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:59:47,164 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:59:47,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:59:47,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2019-11-06 21:59:47,165 INFO L87 Difference]: Start difference. First operand 723 states and 845 transitions. Second operand 8 states. [2019-11-06 21:59:47,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:59:47,693 INFO L93 Difference]: Finished difference Result 1383 states and 1626 transitions. [2019-11-06 21:59:47,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 21:59:47,694 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-11-06 21:59:47,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:59:47,698 INFO L225 Difference]: With dead ends: 1383 [2019-11-06 21:59:47,698 INFO L226 Difference]: Without dead ends: 688 [2019-11-06 21:59:47,701 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2019-11-06 21:59:47,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2019-11-06 21:59:47,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2019-11-06 21:59:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2019-11-06 21:59:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 789 transitions. [2019-11-06 21:59:47,848 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 789 transitions. Word has length 108 [2019-11-06 21:59:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:59:47,849 INFO L462 AbstractCegarLoop]: Abstraction has 688 states and 789 transitions. [2019-11-06 21:59:47,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 21:59:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 789 transitions. [2019-11-06 21:59:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-11-06 21:59:47,854 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:59:47,857 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:59:48,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:59:48,061 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:59:48,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:59:48,062 INFO L82 PathProgramCache]: Analyzing trace with hash -891659702, now seen corresponding path program 1 times [2019-11-06 21:59:48,062 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:59:48,062 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425132039] [2019-11-06 21:59:48,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:59:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,445 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 21:59:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:59:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-06 21:59:48,580 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425132039] [2019-11-06 21:59:48,581 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492996049] [2019-11-06 21:59:48,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true