/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_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:47:13,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:47:13,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:47:13,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:47:13,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:47:13,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:47:13,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:47:13,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:47:13,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:47:13,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:47:13,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:47:13,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:47:13,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:47:13,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:47:13,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:47:13,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:47:13,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:47:13,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:47:13,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:47:13,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:47:13,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:47:13,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:47:13,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:47:13,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:47:13,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:47:13,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:47:13,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:47:13,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:47:13,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:47:13,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:47:13,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:47:13,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:47:13,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:47:13,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:47:13,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:47:13,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:47:13,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:47:13,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:47:13,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:47:13,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:47:13,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:47:13,569 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 [2020-07-07 10:47:13,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:47:13,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:47:13,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:47:13,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:47:13,586 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:47:13,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:47:13,587 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:47:13,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:47:13,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:47:13,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:47:13,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:47:13,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:47:13,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:47:13,588 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:47:13,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:47:13,588 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:47:13,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:47:13,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:47:13,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:47:13,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:47:13,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:47:13,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:47:13,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:47:13,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:47:13,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:47:13,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:47:13,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:47:13,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:47:13,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:47:13,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:47:13,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:47:13,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:47:13,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:47:13,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:47:13,897 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:47:13,898 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-07-07 10:47:13,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230711af4/acc777c4466749bab27563e53bd10340/FLAG8ee319973 [2020-07-07 10:47:14,477 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:47:14,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-07-07 10:47:14,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230711af4/acc777c4466749bab27563e53bd10340/FLAG8ee319973 [2020-07-07 10:47:14,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230711af4/acc777c4466749bab27563e53bd10340 [2020-07-07 10:47:14,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:47:14,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:47:14,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:47:14,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:47:14,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:47:14,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:47:14" (1/1) ... [2020-07-07 10:47:14,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4ef7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:14, skipping insertion in model container [2020-07-07 10:47:14,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:47:14" (1/1) ... [2020-07-07 10:47:14,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:47:14,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:47:15,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:47:15,252 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:47:15,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:47:15,560 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:47:15,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15 WrapperNode [2020-07-07 10:47:15,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:47:15,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:47:15,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:47:15,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:47:15,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (1/1) ... [2020-07-07 10:47:15,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (1/1) ... [2020-07-07 10:47:15,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (1/1) ... [2020-07-07 10:47:15,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (1/1) ... [2020-07-07 10:47:15,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (1/1) ... [2020-07-07 10:47:15,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (1/1) ... [2020-07-07 10:47:15,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (1/1) ... [2020-07-07 10:47:15,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:47:15,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:47:15,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:47:15,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:47:15,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (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 [2020-07-07 10:47:15,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:47:15,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:47:15,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:47:15,780 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:47:15,780 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:47:15,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:47:15,781 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:47:15,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:47:15,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:47:15,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:47:15,782 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:47:15,782 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:47:15,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:47:15,783 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:47:15,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:47:15,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:47:15,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 10:47:15,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:47:15,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:47:15,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:47:15,785 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:47:15,785 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:47:15,786 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:47:15,786 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:47:15,786 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:47:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:47:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:47:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:47:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:47:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:47:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:47:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:47:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:47:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:47:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:47:15,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:47:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:47:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:47:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:47:15,790 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:47:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:47:15,791 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:47:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:47:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:47:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:47:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:47:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:47:15,792 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:47:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:47:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:47:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:47:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:47:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:47:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:47:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:47:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:47:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:47:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:47:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 10:47:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:47:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:47:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:47:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:47:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 10:47:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:47:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:47:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:47:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:47:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 10:47:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:47:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:47:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:47:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:47:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:47:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:47:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:47:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:47:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:47:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:47:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:47:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:47:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:47:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:47:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:47:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:47:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:47:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:47:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:47:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:47:16,939 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:47:16,939 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:47:16,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:47:16 BoogieIcfgContainer [2020-07-07 10:47:16,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:47:16,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:47:16,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:47:16,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:47:16,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:47:14" (1/3) ... [2020-07-07 10:47:16,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f6b69f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:47:16, skipping insertion in model container [2020-07-07 10:47:16,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:15" (2/3) ... [2020-07-07 10:47:16,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f6b69f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:47:16, skipping insertion in model container [2020-07-07 10:47:16,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:47:16" (3/3) ... [2020-07-07 10:47:16,957 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-07-07 10:47:16,968 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:47:16,978 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:47:16,993 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:47:17,032 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:47:17,032 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:47:17,032 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:47:17,033 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:47:17,033 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:47:17,033 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:47:17,033 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:47:17,033 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:47:17,056 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2020-07-07 10:47:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:47:17,065 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:17,066 INFO L422 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] [2020-07-07 10:47:17,067 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:17,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:17,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1091923628, now seen corresponding path program 1 times [2020-07-07 10:47:17,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:17,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87596489] [2020-07-07 10:47:17,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,704 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:17,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87596489] [2020-07-07 10:47:17,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:17,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:47:17,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658362820] [2020-07-07 10:47:17,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:47:17,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:17,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:47:17,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:47:17,886 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 3 states. [2020-07-07 10:47:19,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:19,102 INFO L93 Difference]: Finished difference Result 311 states and 407 transitions. [2020-07-07 10:47:19,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:47:19,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:47:19,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:19,119 INFO L225 Difference]: With dead ends: 311 [2020-07-07 10:47:19,119 INFO L226 Difference]: Without dead ends: 168 [2020-07-07 10:47:19,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:47:19,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-07 10:47:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 134. [2020-07-07 10:47:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-07 10:47:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2020-07-07 10:47:19,220 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2020-07-07 10:47:19,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:19,220 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2020-07-07 10:47:19,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:47:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2020-07-07 10:47:19,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:47:19,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:19,224 INFO L422 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] [2020-07-07 10:47:19,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:47:19,225 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:19,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:19,225 INFO L82 PathProgramCache]: Analyzing trace with hash 644500822, now seen corresponding path program 1 times [2020-07-07 10:47:19,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:19,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747230887] [2020-07-07 10:47:19,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,602 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:19,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747230887] [2020-07-07 10:47:19,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:19,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:47:19,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197943044] [2020-07-07 10:47:19,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:47:19,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:19,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:47:19,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:47:19,670 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 4 states. [2020-07-07 10:47:20,245 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:21,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:21,007 INFO L93 Difference]: Finished difference Result 238 states and 290 transitions. [2020-07-07 10:47:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:21,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:47:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:21,011 INFO L225 Difference]: With dead ends: 238 [2020-07-07 10:47:21,011 INFO L226 Difference]: Without dead ends: 152 [2020-07-07 10:47:21,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:47:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-07 10:47:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 125. [2020-07-07 10:47:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-07 10:47:21,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2020-07-07 10:47:21,067 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2020-07-07 10:47:21,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:21,068 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2020-07-07 10:47:21,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:47:21,068 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2020-07-07 10:47:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-07 10:47:21,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:21,074 INFO L422 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] [2020-07-07 10:47:21,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:47:21,075 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:21,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:21,075 INFO L82 PathProgramCache]: Analyzing trace with hash -350015351, now seen corresponding path program 1 times [2020-07-07 10:47:21,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:21,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233755554] [2020-07-07 10:47:21,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,429 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:21,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233755554] [2020-07-07 10:47:21,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:21,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:47:21,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693365375] [2020-07-07 10:47:21,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:47:21,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:21,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:47:21,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:47:21,567 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 8 states. [2020-07-07 10:47:21,970 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:22,300 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:22,506 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:22,722 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:23,482 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:25,314 INFO L93 Difference]: Finished difference Result 427 states and 530 transitions. [2020-07-07 10:47:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:47:25,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-07 10:47:25,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:25,320 INFO L225 Difference]: With dead ends: 427 [2020-07-07 10:47:25,320 INFO L226 Difference]: Without dead ends: 326 [2020-07-07 10:47:25,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-07 10:47:25,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-07-07 10:47:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 268. [2020-07-07 10:47:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-07-07 10:47:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 324 transitions. [2020-07-07 10:47:25,395 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 324 transitions. Word has length 51 [2020-07-07 10:47:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:25,395 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 324 transitions. [2020-07-07 10:47:25,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:25,396 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 324 transitions. [2020-07-07 10:47:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 10:47:25,398 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:25,398 INFO L422 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] [2020-07-07 10:47:25,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:47:25,399 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:25,399 INFO L82 PathProgramCache]: Analyzing trace with hash -103520613, now seen corresponding path program 1 times [2020-07-07 10:47:25,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:25,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002115203] [2020-07-07 10:47:25,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,713 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:25,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002115203] [2020-07-07 10:47:25,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:25,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 10:47:25,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925794341] [2020-07-07 10:47:25,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:47:25,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:25,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:47:25,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:25,819 INFO L87 Difference]: Start difference. First operand 268 states and 324 transitions. Second operand 12 states. [2020-07-07 10:47:26,266 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:26,621 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:26,875 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:27,125 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:27,683 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:28,533 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:28,922 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:29,320 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:29,557 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:29,824 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:30,208 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:30,546 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:30,887 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:32,517 INFO L93 Difference]: Finished difference Result 1081 states and 1492 transitions. [2020-07-07 10:47:32,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 10:47:32,517 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-07-07 10:47:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:32,525 INFO L225 Difference]: With dead ends: 1081 [2020-07-07 10:47:32,525 INFO L226 Difference]: Without dead ends: 837 [2020-07-07 10:47:32,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-07 10:47:32,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-07-07 10:47:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 744. [2020-07-07 10:47:32,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-07-07 10:47:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 950 transitions. [2020-07-07 10:47:32,729 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 950 transitions. Word has length 57 [2020-07-07 10:47:32,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:32,730 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 950 transitions. [2020-07-07 10:47:32,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:47:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 950 transitions. [2020-07-07 10:47:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-07 10:47:32,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:32,736 INFO L422 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] [2020-07-07 10:47:32,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:47:32,737 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1065334495, now seen corresponding path program 1 times [2020-07-07 10:47:32,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:32,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620783104] [2020-07-07 10:47:32,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,030 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:33,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:33,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620783104] [2020-07-07 10:47:33,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:33,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:47:33,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847889168] [2020-07-07 10:47:33,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:33,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:33,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:33,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:47:33,142 INFO L87 Difference]: Start difference. First operand 744 states and 950 transitions. Second operand 6 states. [2020-07-07 10:47:33,448 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:35,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:35,188 INFO L93 Difference]: Finished difference Result 1779 states and 2437 transitions. [2020-07-07 10:47:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 10:47:35,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-07 10:47:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:35,201 INFO L225 Difference]: With dead ends: 1779 [2020-07-07 10:47:35,201 INFO L226 Difference]: Without dead ends: 1059 [2020-07-07 10:47:35,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2020-07-07 10:47:35,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 972. [2020-07-07 10:47:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2020-07-07 10:47:35,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1232 transitions. [2020-07-07 10:47:35,412 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1232 transitions. Word has length 61 [2020-07-07 10:47:35,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:35,413 INFO L479 AbstractCegarLoop]: Abstraction has 972 states and 1232 transitions. [2020-07-07 10:47:35,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:35,413 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1232 transitions. [2020-07-07 10:47:35,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-07 10:47:35,415 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:35,415 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:35,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:47:35,416 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:35,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:35,416 INFO L82 PathProgramCache]: Analyzing trace with hash 380759586, now seen corresponding path program 1 times [2020-07-07 10:47:35,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:35,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182822505] [2020-07-07 10:47:35,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,690 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-07 10:47:35,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182822505] [2020-07-07 10:47:35,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975676894] [2020-07-07 10:47:35,860 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 [2020-07-07 10:47:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:36,065 INFO L264 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-07 10:47:36,083 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 10:47:36,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:36,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2020-07-07 10:47:36,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20473913] [2020-07-07 10:47:36,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:47:36,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:36,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:47:36,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:36,194 INFO L87 Difference]: Start difference. First operand 972 states and 1232 transitions. Second operand 12 states. [2020-07-07 10:47:36,775 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-07 10:47:37,365 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:39,291 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:39,676 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:42,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:42,824 INFO L93 Difference]: Finished difference Result 2598 states and 3565 transitions. [2020-07-07 10:47:42,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-07 10:47:42,825 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 88 [2020-07-07 10:47:42,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:42,837 INFO L225 Difference]: With dead ends: 2598 [2020-07-07 10:47:42,838 INFO L226 Difference]: Without dead ends: 1893 [2020-07-07 10:47:42,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 10:47:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2020-07-07 10:47:43,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1735. [2020-07-07 10:47:43,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1735 states. [2020-07-07 10:47:43,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2223 transitions. [2020-07-07 10:47:43,261 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2223 transitions. Word has length 88 [2020-07-07 10:47:43,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:43,263 INFO L479 AbstractCegarLoop]: Abstraction has 1735 states and 2223 transitions. [2020-07-07 10:47:43,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:47:43,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2223 transitions. [2020-07-07 10:47:43,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-07 10:47:43,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:43,274 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:43,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-07 10:47:43,488 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:43,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:43,488 INFO L82 PathProgramCache]: Analyzing trace with hash 605263964, now seen corresponding path program 1 times [2020-07-07 10:47:43,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:43,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033278901] [2020-07-07 10:47:43,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,776 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:44,050 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 10:47:44,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033278901] [2020-07-07 10:47:44,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004579872] [2020-07-07 10:47:44,052 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 [2020-07-07 10:47:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:44,267 INFO L264 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:44,281 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 10:47:44,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:44,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2020-07-07 10:47:44,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908272572] [2020-07-07 10:47:44,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:44,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:44,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:44,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:44,379 INFO L87 Difference]: Start difference. First operand 1735 states and 2223 transitions. Second operand 6 states. [2020-07-07 10:47:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:44,872 INFO L93 Difference]: Finished difference Result 1778 states and 2277 transitions. [2020-07-07 10:47:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 10:47:44,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-07 10:47:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:44,884 INFO L225 Difference]: With dead ends: 1778 [2020-07-07 10:47:44,884 INFO L226 Difference]: Without dead ends: 1775 [2020-07-07 10:47:44,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:47:44,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-07-07 10:47:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1735. [2020-07-07 10:47:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1735 states. [2020-07-07 10:47:45,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2211 transitions. [2020-07-07 10:47:45,220 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2211 transitions. Word has length 128 [2020-07-07 10:47:45,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:45,221 INFO L479 AbstractCegarLoop]: Abstraction has 1735 states and 2211 transitions. [2020-07-07 10:47:45,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2211 transitions. [2020-07-07 10:47:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 10:47:45,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:45,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:45,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:45,439 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:45,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:45,440 INFO L82 PathProgramCache]: Analyzing trace with hash -257122548, now seen corresponding path program 1 times [2020-07-07 10:47:45,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:45,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912472155] [2020-07-07 10:47:45,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,682 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 10:47:45,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912472155] [2020-07-07 10:47:45,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437803521] [2020-07-07 10:47:45,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:46,013 INFO L264 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:46,017 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 10:47:46,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:46,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-07 10:47:46,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159699402] [2020-07-07 10:47:46,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:46,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:46,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:46,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:46,057 INFO L87 Difference]: Start difference. First operand 1735 states and 2211 transitions. Second operand 6 states. [2020-07-07 10:47:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:46,382 INFO L93 Difference]: Finished difference Result 3486 states and 4564 transitions. [2020-07-07 10:47:46,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:47:46,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-07-07 10:47:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:46,394 INFO L225 Difference]: With dead ends: 3486 [2020-07-07 10:47:46,394 INFO L226 Difference]: Without dead ends: 1775 [2020-07-07 10:47:46,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-07-07 10:47:46,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1775. [2020-07-07 10:47:46,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1775 states. [2020-07-07 10:47:46,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2259 transitions. [2020-07-07 10:47:46,713 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2259 transitions. Word has length 132 [2020-07-07 10:47:46,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:46,713 INFO L479 AbstractCegarLoop]: Abstraction has 1775 states and 2259 transitions. [2020-07-07 10:47:46,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:46,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2259 transitions. [2020-07-07 10:47:46,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 10:47:46,719 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:46,719 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:46,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:46,934 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:46,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:46,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1067733646, now seen corresponding path program 1 times [2020-07-07 10:47:46,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:46,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857044672] [2020-07-07 10:47:46,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,280 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 10:47:47,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857044672] [2020-07-07 10:47:47,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654826927] [2020-07-07 10:47:47,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:47,915 INFO L264 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 10:47:47,921 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 10:47:48,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:48,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-07-07 10:47:48,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250311970] [2020-07-07 10:47:48,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 10:47:48,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:48,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 10:47:48,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:47:48,006 INFO L87 Difference]: Start difference. First operand 1775 states and 2259 transitions. Second operand 5 states. [2020-07-07 10:47:48,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:48,296 INFO L93 Difference]: Finished difference Result 3250 states and 4220 transitions. [2020-07-07 10:47:48,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:48,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-07-07 10:47:48,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:48,305 INFO L225 Difference]: With dead ends: 3250 [2020-07-07 10:47:48,306 INFO L226 Difference]: Without dead ends: 1499 [2020-07-07 10:47:48,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:47:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2020-07-07 10:47:48,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1499. [2020-07-07 10:47:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2020-07-07 10:47:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1865 transitions. [2020-07-07 10:47:48,619 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1865 transitions. Word has length 132 [2020-07-07 10:47:48,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:48,620 INFO L479 AbstractCegarLoop]: Abstraction has 1499 states and 1865 transitions. [2020-07-07 10:47:48,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 10:47:48,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1865 transitions. [2020-07-07 10:47:48,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-07 10:47:48,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:48,624 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:48,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:48,838 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:48,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:48,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1244866615, now seen corresponding path program 1 times [2020-07-07 10:47:48,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:48,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878149604] [2020-07-07 10:47:48,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,214 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-07 10:47:49,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878149604] [2020-07-07 10:47:49,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823537600] [2020-07-07 10:47:49,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:49,630 INFO L264 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:49,641 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:49,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:49,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-07 10:47:49,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520111564] [2020-07-07 10:47:49,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 10:47:49,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:49,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 10:47:49,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:49,756 INFO L87 Difference]: Start difference. First operand 1499 states and 1865 transitions. Second operand 14 states. [2020-07-07 10:47:50,603 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:51,315 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:52,111 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:47:52,396 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:52,656 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:53,101 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-07 10:47:53,379 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:53,699 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:55,620 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:56,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:56,818 INFO L93 Difference]: Finished difference Result 3082 states and 4108 transitions. [2020-07-07 10:47:56,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-07 10:47:56,819 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2020-07-07 10:47:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:56,829 INFO L225 Difference]: With dead ends: 3082 [2020-07-07 10:47:56,830 INFO L226 Difference]: Without dead ends: 1762 [2020-07-07 10:47:56,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=335, Invalid=855, Unknown=0, NotChecked=0, Total=1190 [2020-07-07 10:47:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2020-07-07 10:47:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1367. [2020-07-07 10:47:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-07 10:47:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1696 transitions. [2020-07-07 10:47:57,090 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1696 transitions. Word has length 136 [2020-07-07 10:47:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:57,090 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1696 transitions. [2020-07-07 10:47:57,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 10:47:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1696 transitions. [2020-07-07 10:47:57,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-07 10:47:57,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:57,096 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-07 10:47:57,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 10:47:57,312 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:57,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:57,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1692744000, now seen corresponding path program 2 times [2020-07-07 10:47:57,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:57,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100961768] [2020-07-07 10:47:57,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,571 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 52 proven. 27 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-07 10:47:58,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100961768] [2020-07-07 10:47:58,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637776896] [2020-07-07 10:47:58,160 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:58,423 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 10:47:58,423 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 10:47:58,427 INFO L264 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-07 10:47:58,431 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:58,501 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-07 10:47:58,502 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 10:47:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 10:47:58,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:58,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13] total 28 [2020-07-07 10:47:58,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165570638] [2020-07-07 10:47:58,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-07-07 10:47:58,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:58,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-07-07 10:47:58,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2020-07-07 10:47:58,704 INFO L87 Difference]: Start difference. First operand 1367 states and 1696 transitions. Second operand 28 states. [2020-07-07 10:47:59,422 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:48:00,740 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:48:01,079 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:48:01,362 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:48:01,666 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:48:01,925 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:48:02,202 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:48:02,502 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:48:02,821 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:48:03,948 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:48:04,321 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:48:04,661 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:48:04,928 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:05,300 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:05,628 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:07,416 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-07-07 10:48:07,908 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-07-07 10:48:08,385 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-07-07 10:48:09,411 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 10:48:09,754 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 10:48:10,052 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 10:48:10,528 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-07-07 10:48:10,791 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:48:11,306 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-07-07 10:48:12,260 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:12,859 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:13,358 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:14,431 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:48:15,050 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-07-07 10:48:15,860 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-07-07 10:48:16,391 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-07-07 10:48:16,903 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-07-07 10:48:17,434 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-07-07 10:48:17,999 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-07-07 10:48:18,621 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-07-07 10:48:19,226 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-07-07 10:48:19,780 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-07-07 10:48:20,953 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-07 10:48:21,592 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-07-07 10:48:22,103 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-07-07 10:48:22,719 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:23,250 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:23,746 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:25,032 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:25,312 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:25,570 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:48:26,611 INFO L93 Difference]: Finished difference Result 4230 states and 5815 transitions. [2020-07-07 10:48:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-07-07 10:48:26,612 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 189 [2020-07-07 10:48:26,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:48:26,626 INFO L225 Difference]: With dead ends: 4230 [2020-07-07 10:48:26,626 INFO L226 Difference]: Without dead ends: 2910 [2020-07-07 10:48:26,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 260 SyntacticMatches, 6 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3134 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=1381, Invalid=8719, Unknown=0, NotChecked=0, Total=10100 [2020-07-07 10:48:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2020-07-07 10:48:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2483. [2020-07-07 10:48:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2483 states. [2020-07-07 10:48:27,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3148 transitions. [2020-07-07 10:48:27,045 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3148 transitions. Word has length 189 [2020-07-07 10:48:27,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:48:27,046 INFO L479 AbstractCegarLoop]: Abstraction has 2483 states and 3148 transitions. [2020-07-07 10:48:27,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-07-07 10:48:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3148 transitions. [2020-07-07 10:48:27,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-07 10:48:27,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:48:27,053 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-07 10:48:27,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:48:27,267 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:48:27,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:48:27,267 INFO L82 PathProgramCache]: Analyzing trace with hash 183738818, now seen corresponding path program 1 times [2020-07-07 10:48:27,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:48:27,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4410174] [2020-07-07 10:48:27,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:48:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,621 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:48:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-07-07 10:48:27,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4410174] [2020-07-07 10:48:27,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143398199] [2020-07-07 10:48:27,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:48:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:28,148 INFO L264 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-07 10:48:28,153 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:48:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-07 10:48:28,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:48:28,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 15 [2020-07-07 10:48:28,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335312137] [2020-07-07 10:48:28,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:48:28,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:48:28,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:48:28,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:48:28,217 INFO L87 Difference]: Start difference. First operand 2483 states and 3148 transitions. Second operand 6 states. [2020-07-07 10:48:28,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:48:28,436 INFO L93 Difference]: Finished difference Result 3162 states and 3992 transitions. [2020-07-07 10:48:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:48:28,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2020-07-07 10:48:28,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:48:28,437 INFO L225 Difference]: With dead ends: 3162 [2020-07-07 10:48:28,438 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 10:48:28,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:48:28,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 10:48:28,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 10:48:28,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 10:48:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 10:48:28,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2020-07-07 10:48:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:48:28,451 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 10:48:28,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:48:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 10:48:28,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 10:48:28,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:48:28,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 10:48:30,559 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 146 [2020-07-07 10:48:32,888 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 129 [2020-07-07 10:48:33,484 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 127 [2020-07-07 10:48:35,905 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 139 [2020-07-07 10:48:36,080 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 140 [2020-07-07 10:48:37,834 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 11 [2020-07-07 10:48:37,986 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 1 [2020-07-07 10:48:38,453 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 22 [2020-07-07 10:48:38,702 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 1 [2020-07-07 10:48:39,095 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 11 [2020-07-07 10:48:39,266 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 26 [2020-07-07 10:48:39,603 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 1 [2020-07-07 10:48:40,805 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 177 DAG size of output: 16 [2020-07-07 10:48:41,097 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:48:41,530 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 24 [2020-07-07 10:48:41,857 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 1 [2020-07-07 10:48:42,574 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 24 [2020-07-07 10:48:42,988 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 24 [2020-07-07 10:48:43,443 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 15 [2020-07-07 10:48:44,531 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 20 [2020-07-07 10:48:44,652 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-07-07 10:48:44,982 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 13 [2020-07-07 10:48:45,865 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 19 [2020-07-07 10:48:46,266 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 18 [2020-07-07 10:48:46,606 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 1 [2020-07-07 10:48:46,753 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2020-07-07 10:48:47,077 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 13 [2020-07-07 10:48:48,196 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 205 DAG size of output: 29 [2020-07-07 10:48:48,487 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 10 [2020-07-07 10:48:48,709 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 21 [2020-07-07 10:48:49,089 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 22 [2020-07-07 10:48:49,656 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 19 [2020-07-07 10:48:50,051 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 22 [2020-07-07 10:48:50,445 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 22 [2020-07-07 10:48:50,761 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 13 [2020-07-07 10:48:51,165 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 22 [2020-07-07 10:48:51,292 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 1 [2020-07-07 10:48:51,492 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 27 [2020-07-07 10:48:51,637 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2020-07-07 10:48:51,740 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 25 [2020-07-07 10:48:51,881 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 1 [2020-07-07 10:48:52,252 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 21 [2020-07-07 10:48:52,610 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 11 [2020-07-07 10:48:52,754 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2020-07-07 10:48:53,223 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 13 [2020-07-07 10:48:53,885 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 24 [2020-07-07 10:48:55,015 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 198 DAG size of output: 31 [2020-07-07 10:48:55,376 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 22 [2020-07-07 10:48:55,381 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 659 714) no Hoare annotation was computed. [2020-07-07 10:48:55,381 INFO L268 CegarLoopResult]: For program point L690(lines 690 694) no Hoare annotation was computed. [2020-07-07 10:48:55,381 INFO L268 CegarLoopResult]: For program point L690-1(lines 690 694) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point L685(line 685) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point L684-2(lines 684 705) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 659 714) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 659 714) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point L706(lines 683 707) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point L767(lines 740 768) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point L760(line 760) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point L760-1(line 760) no Hoare annotation was computed. [2020-07-07 10:48:55,382 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 715 774) no Hoare annotation was computed. [2020-07-07 10:48:55,383 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 715 774) no Hoare annotation was computed. [2020-07-07 10:48:55,383 INFO L268 CegarLoopResult]: For program point L747(lines 747 751) no Hoare annotation was computed. [2020-07-07 10:48:55,383 INFO L268 CegarLoopResult]: For program point L747-1(lines 747 751) no Hoare annotation was computed. [2020-07-07 10:48:55,383 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 715 774) no Hoare annotation was computed. [2020-07-07 10:48:55,383 INFO L268 CegarLoopResult]: For program point L742(line 742) no Hoare annotation was computed. [2020-07-07 10:48:55,383 INFO L268 CegarLoopResult]: For program point L741-2(lines 741 766) no Hoare annotation was computed. [2020-07-07 10:48:55,384 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 299 305) the Hoare annotation is: true [2020-07-07 10:48:55,384 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 299 305) no Hoare annotation was computed. [2020-07-07 10:48:55,384 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 306 314) no Hoare annotation was computed. [2020-07-07 10:48:55,384 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 306 314) the Hoare annotation is: true [2020-07-07 10:48:55,384 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 306 314) no Hoare annotation was computed. [2020-07-07 10:48:55,385 INFO L264 CegarLoopResult]: At program point L161(line 161) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) (or (= 0 ~systemActive~0) (not (<= 2 ~waterLevel~0)))) [2020-07-07 10:48:55,385 INFO L268 CegarLoopResult]: For program point L159(lines 159 165) no Hoare annotation was computed. [2020-07-07 10:48:55,385 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 147 171) the Hoare annotation is: true [2020-07-07 10:48:55,385 INFO L264 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) (or (= 0 ~systemActive~0) (not (<= 2 ~waterLevel~0)))) [2020-07-07 10:48:55,385 INFO L268 CegarLoopResult]: For program point L157-1(line 157) no Hoare annotation was computed. [2020-07-07 10:48:55,385 INFO L268 CegarLoopResult]: For program point L155(lines 155 168) no Hoare annotation was computed. [2020-07-07 10:48:55,386 INFO L268 CegarLoopResult]: For program point L155-1(lines 147 171) no Hoare annotation was computed. [2020-07-07 10:48:55,386 INFO L271 CegarLoopResult]: At program point L153(line 153) the Hoare annotation is: true [2020-07-07 10:48:55,386 INFO L268 CegarLoopResult]: For program point L153-1(line 153) no Hoare annotation was computed. [2020-07-07 10:48:55,386 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 147 171) no Hoare annotation was computed. [2020-07-07 10:48:55,386 INFO L268 CegarLoopResult]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2020-07-07 10:48:55,386 INFO L268 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-07-07 10:48:55,386 INFO L264 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-07 10:48:55,387 INFO L264 CegarLoopResult]: At program point L126(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-07 10:48:55,387 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 120 142) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-07 10:48:55,387 INFO L264 CegarLoopResult]: At program point L126-1(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-07 10:48:55,387 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 120 142) no Hoare annotation was computed. [2020-07-07 10:48:55,387 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 120 142) no Hoare annotation was computed. [2020-07-07 10:48:55,387 INFO L264 CegarLoopResult]: At program point L132(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~0 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|))) [2020-07-07 10:48:55,388 INFO L264 CegarLoopResult]: At program point L132-1(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0) (= main_~tmp~0 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|))) [2020-07-07 10:48:55,388 INFO L268 CegarLoopResult]: For program point L130(lines 130 137) no Hoare annotation was computed. [2020-07-07 10:48:55,388 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 75 98) no Hoare annotation was computed. [2020-07-07 10:48:55,388 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-07-07 10:48:55,388 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 75 98) no Hoare annotation was computed. [2020-07-07 10:48:55,388 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-07-07 10:48:55,388 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 75 98) no Hoare annotation was computed. [2020-07-07 10:48:55,388 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-07 10:48:55,389 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-07 10:48:55,390 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-07-07 10:48:55,390 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-07-07 10:48:55,390 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 515 529) no Hoare annotation was computed. [2020-07-07 10:48:55,390 INFO L264 CegarLoopResult]: At program point L521(line 521) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (and (= |old(~systemActive~0)| ~systemActive~0) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (= 0 |old(~systemActive~0)|) (not (<= 2 ~waterLevel~0)))) [2020-07-07 10:48:55,390 INFO L268 CegarLoopResult]: For program point L519(lines 519 525) no Hoare annotation was computed. [2020-07-07 10:48:55,390 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 515 529) the Hoare annotation is: (let ((.cse0 (= |old(~systemActive~0)| ~systemActive~0))) (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0))) (or (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (= 0 |old(~systemActive~0)|) (not (<= 2 ~waterLevel~0))))) [2020-07-07 10:48:55,391 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 515 529) no Hoare annotation was computed. [2020-07-07 10:48:55,391 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 432 440) no Hoare annotation was computed. [2020-07-07 10:48:55,391 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 432 440) the Hoare annotation is: true [2020-07-07 10:48:55,391 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 432 440) no Hoare annotation was computed. [2020-07-07 10:48:55,391 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 496 514) the Hoare annotation is: true [2020-07-07 10:48:55,391 INFO L268 CegarLoopResult]: For program point L505(lines 505 509) no Hoare annotation was computed. [2020-07-07 10:48:55,391 INFO L271 CegarLoopResult]: At program point L503(line 503) the Hoare annotation is: true [2020-07-07 10:48:55,391 INFO L268 CegarLoopResult]: For program point L505-2(lines 505 509) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point L503-1(line 503) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 496 514) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 496 514) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point L448(lines 448 456) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point L448-2(lines 448 456) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point L471-1(line 471) no Hoare annotation was computed. [2020-07-07 10:48:55,392 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 441 476) no Hoare annotation was computed. [2020-07-07 10:48:55,393 INFO L268 CegarLoopResult]: For program point L460(lines 460 468) no Hoare annotation was computed. [2020-07-07 10:48:55,393 INFO L268 CegarLoopResult]: For program point L460-2(lines 460 468) no Hoare annotation was computed. [2020-07-07 10:48:55,393 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 441 476) no Hoare annotation was computed. [2020-07-07 10:48:55,393 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 441 476) no Hoare annotation was computed. [2020-07-07 10:48:55,393 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 292 298) no Hoare annotation was computed. [2020-07-07 10:48:55,393 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 292 298) the Hoare annotation is: true [2020-07-07 10:48:55,393 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 613 658) no Hoare annotation was computed. [2020-07-07 10:48:55,393 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 613 658) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 613 658) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 926 971) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L268 CegarLoopResult]: For program point L946(lines 946 953) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L268 CegarLoopResult]: For program point L940(lines 940 960) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L268 CegarLoopResult]: For program point L940-1(lines 940 960) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 926 971) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 926 971) no Hoare annotation was computed. [2020-07-07 10:48:55,394 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 107 116) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-07 10:48:55,395 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 107 116) no Hoare annotation was computed. [2020-07-07 10:48:55,395 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 107 116) no Hoare annotation was computed. [2020-07-07 10:48:55,395 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 421 431) no Hoare annotation was computed. [2020-07-07 10:48:55,395 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 421 431) no Hoare annotation was computed. [2020-07-07 10:48:55,395 INFO L268 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-07-07 10:48:55,395 INFO L268 CegarLoopResult]: For program point L426-1(line 426) no Hoare annotation was computed. [2020-07-07 10:48:55,395 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 421 431) no Hoare annotation was computed. [2020-07-07 10:48:55,395 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 413 420) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2020-07-07 10:48:55,396 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 413 420) no Hoare annotation was computed. [2020-07-07 10:48:55,396 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 413 420) no Hoare annotation was computed. [2020-07-07 10:48:55,396 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 257 270) no Hoare annotation was computed. [2020-07-07 10:48:55,396 INFO L268 CegarLoopResult]: For program point L261(lines 261 267) no Hoare annotation was computed. [2020-07-07 10:48:55,396 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 257 270) the Hoare annotation is: true [2020-07-07 10:48:55,396 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 257 270) no Hoare annotation was computed. [2020-07-07 10:48:55,396 INFO L268 CegarLoopResult]: For program point L386-1(line 386) no Hoare annotation was computed. [2020-07-07 10:48:55,397 INFO L268 CegarLoopResult]: For program point L384(lines 384 401) no Hoare annotation was computed. [2020-07-07 10:48:55,397 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 380 404) no Hoare annotation was computed. [2020-07-07 10:48:55,397 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 380 404) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2020-07-07 10:48:55,397 INFO L264 CegarLoopResult]: At program point L399(line 399) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~pumpRunning~0)) (= 0 ~systemActive~0)) [2020-07-07 10:48:55,397 INFO L268 CegarLoopResult]: For program point L399-1(lines 380 404) no Hoare annotation was computed. [2020-07-07 10:48:55,397 INFO L264 CegarLoopResult]: At program point L394(line 394) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2020-07-07 10:48:55,398 INFO L264 CegarLoopResult]: At program point L390(line 390) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~3))))) [2020-07-07 10:48:55,398 INFO L268 CegarLoopResult]: For program point L388(lines 388 396) no Hoare annotation was computed. [2020-07-07 10:48:55,398 INFO L264 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2020-07-07 10:48:55,398 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 346 352) no Hoare annotation was computed. [2020-07-07 10:48:55,398 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 346 352) the Hoare annotation is: true [2020-07-07 10:48:55,398 INFO L264 CegarLoopResult]: At program point testENTRY(lines 531 596) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)) (and (= |old(~systemActive~0)| ~systemActive~0) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-07 10:48:55,398 INFO L268 CegarLoopResult]: For program point L543(lines 543 547) no Hoare annotation was computed. [2020-07-07 10:48:55,398 INFO L268 CegarLoopResult]: For program point testFINAL(lines 531 596) no Hoare annotation was computed. [2020-07-07 10:48:55,399 INFO L264 CegarLoopResult]: At program point L589(lines 540 590) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|))) [2020-07-07 10:48:55,399 INFO L264 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= 0 test_~splverifierCounter~0)) (.cse2 (= 0 ~pumpRunning~0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (and .cse0 .cse1 .cse2) (and .cse1 .cse2 (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-07 10:48:55,399 INFO L268 CegarLoopResult]: For program point L577(lines 577 583) no Hoare annotation was computed. [2020-07-07 10:48:55,399 INFO L264 CegarLoopResult]: At program point L577-1(lines 571 584) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (and .cse0 (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-07 10:48:55,399 INFO L268 CegarLoopResult]: For program point L542(lines 541 588) no Hoare annotation was computed. [2020-07-07 10:48:55,399 INFO L268 CegarLoopResult]: For program point L571(lines 571 584) no Hoare annotation was computed. [2020-07-07 10:48:55,399 INFO L264 CegarLoopResult]: At program point L563(line 563) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (and .cse0 (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-07 10:48:55,399 INFO L268 CegarLoopResult]: For program point L561(lines 561 567) no Hoare annotation was computed. [2020-07-07 10:48:55,400 INFO L268 CegarLoopResult]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2020-07-07 10:48:55,400 INFO L264 CegarLoopResult]: At program point L586(lines 541 588) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))) (and .cse0 (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (not (= 1 |old(~waterLevel~0)|)))) [2020-07-07 10:48:55,400 INFO L264 CegarLoopResult]: At program point L553(line 553) the Hoare annotation is: (let ((.cse1 (= 0 test_~splverifierCounter~0)) (.cse0 (<= 2 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~systemActive~0)|)) (and .cse1 .cse2 (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (and .cse1 .cse0 .cse2))) [2020-07-07 10:48:55,400 INFO L268 CegarLoopResult]: For program point L551(lines 551 557) no Hoare annotation was computed. [2020-07-07 10:48:55,400 INFO L268 CegarLoopResult]: For program point L551-1(lines 551 557) no Hoare annotation was computed. [2020-07-07 10:48:55,400 INFO L268 CegarLoopResult]: For program point testEXIT(lines 531 596) no Hoare annotation was computed. [2020-07-07 10:48:55,400 INFO L268 CegarLoopResult]: For program point L894(lines 894 914) no Hoare annotation was computed. [2020-07-07 10:48:55,401 INFO L268 CegarLoopResult]: For program point L894-1(lines 894 914) no Hoare annotation was computed. [2020-07-07 10:48:55,401 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 880 925) no Hoare annotation was computed. [2020-07-07 10:48:55,401 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 880 925) no Hoare annotation was computed. [2020-07-07 10:48:55,401 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 880 925) no Hoare annotation was computed. [2020-07-07 10:48:55,401 INFO L268 CegarLoopResult]: For program point L900(lines 900 907) no Hoare annotation was computed. [2020-07-07 10:48:55,401 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 271 279) no Hoare annotation was computed. [2020-07-07 10:48:55,401 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 271 279) the Hoare annotation is: true [2020-07-07 10:48:55,401 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 271 279) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point L233(lines 233 241) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 225 247) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point L233-2(lines 233 241) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 225 247) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 225 247) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 282 291) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 282 291) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 282 291) no Hoare annotation was computed. [2020-07-07 10:48:55,402 INFO L268 CegarLoopResult]: For program point L801(lines 801 805) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point L865(lines 865 876) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 777 879) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point L828(lines 828 832) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point L826-2(lines 826 846) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point L847(lines 825 848) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point L806(lines 806 822) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 777 879) no Hoare annotation was computed. [2020-07-07 10:48:55,403 INFO L268 CegarLoopResult]: For program point L866(lines 866 873) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point L827(lines 826 846) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point L858(line 858) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point L858-1(line 858) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point L823(lines 823 864) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 777 879) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point L842(line 842) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point L842-1(line 842) no Hoare annotation was computed. [2020-07-07 10:48:55,404 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 10:48:55,405 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string59.offset| |old(#t~string59.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |#t~string68.offset| |old(#t~string68.offset)|) (= ~waterLevel~0 |old(~waterLevel~0)|) (= |#t~string66.offset| |old(#t~string66.offset)|) (= |#t~string71.base| |old(#t~string71.base)|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string57.base| |old(#t~string57.base)|) (= |#t~string70.offset| |old(#t~string70.offset)|) (= |#t~string28.offset| |old(#t~string28.offset)|) (= |#t~string12.offset| |old(#t~string12.offset)|) (= |#t~string57.offset| |old(#t~string57.offset)|) (= ~head~0.offset |old(~head~0.offset)|) (= |#t~string24.base| |old(#t~string24.base)|) (= |#t~string58.offset| |old(#t~string58.offset)|) (= |#t~string18.offset| |old(#t~string18.offset)|) (= ~head~0.base |old(~head~0.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= |#t~string61.offset| |old(#t~string61.offset)|) (= |#t~string66.base| |old(#t~string66.base)|) (= |#t~string28.base| |old(#t~string28.base)|) (= |#t~string67.offset| |old(#t~string67.offset)|) (= |#t~string60.base| |old(#t~string60.base)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string12.base| |old(#t~string12.base)|) (= |#t~string62.offset| |old(#t~string62.offset)|) (= |#t~string32.base| |old(#t~string32.base)|) (= |#t~string30.offset| |old(#t~string30.offset)|) (= |#t~string22.base| |old(#t~string22.base)|) (= |#t~string30.base| |old(#t~string30.base)|) (= |#t~string61.base| |old(#t~string61.base)|) (= |#t~string10.offset| |old(#t~string10.offset)|) (= |#t~string59.base| |old(#t~string59.base)|) (= ~systemActive~0 |old(~systemActive~0)|) (= |#t~string70.base| |old(#t~string70.base)|) (= |#t~string60.offset| |old(#t~string60.offset)|) (= |#t~string58.base| |old(#t~string58.base)|) (= |#t~string22.offset| |old(#t~string22.offset)|) (= |#t~string69.offset| |old(#t~string69.offset)|) (= |#t~string20.offset| |old(#t~string20.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string32.offset| |old(#t~string32.offset)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string18.base| |old(#t~string18.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|) (= |#t~string62.base| |old(#t~string62.base)|) (= |#t~string20.base| |old(#t~string20.base)|) (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|) (= |#t~string24.offset| |old(#t~string24.offset)|) (= |#t~string10.base| |old(#t~string10.base)|) (= |#t~string67.base| |old(#t~string67.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#t~string71.offset| |old(#t~string71.offset)|) (= |#t~string26.base| |old(#t~string26.base)|) (= |#t~string26.offset| |old(#t~string26.offset)|) (= |#valid| |old(#valid)|) (= |#t~string68.base| |old(#t~string68.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string69.base| |old(#t~string69.base)|)) [2020-07-07 10:48:55,405 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:48:55,405 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 405 412) no Hoare annotation was computed. [2020-07-07 10:48:55,405 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 405 412) no Hoare annotation was computed. [2020-07-07 10:48:55,405 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 405 412) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-07 10:48:55,405 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 248 256) the Hoare annotation is: true [2020-07-07 10:48:55,405 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 248 256) no Hoare annotation was computed. [2020-07-07 10:48:55,405 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 248 256) no Hoare annotation was computed. [2020-07-07 10:48:55,406 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 477 495) no Hoare annotation was computed. [2020-07-07 10:48:55,406 INFO L268 CegarLoopResult]: For program point L486(lines 486 490) no Hoare annotation was computed. [2020-07-07 10:48:55,406 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 477 495) the Hoare annotation is: true [2020-07-07 10:48:55,406 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 477 495) no Hoare annotation was computed. [2020-07-07 10:48:55,406 INFO L271 CegarLoopResult]: At program point L484(line 484) the Hoare annotation is: true [2020-07-07 10:48:55,406 INFO L268 CegarLoopResult]: For program point L486-2(lines 486 490) no Hoare annotation was computed. [2020-07-07 10:48:55,406 INFO L268 CegarLoopResult]: For program point L484-1(line 484) no Hoare annotation was computed. [2020-07-07 10:48:55,406 INFO L268 CegarLoopResult]: For program point L208-1(lines 204 215) no Hoare annotation was computed. [2020-07-07 10:48:55,407 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 204 215) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or .cse0 (= 0 ~systemActive~0) (not (<= 2 ~waterLevel~0))) (or (not (<= 1 ~waterLevel~0)) .cse0 (not (= 0 ~pumpRunning~0))))) [2020-07-07 10:48:55,407 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 204 215) no Hoare annotation was computed. [2020-07-07 10:48:55,407 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:48:55,407 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-07 10:48:55,407 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-07 10:48:55,407 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 322 345) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (= 0 ~systemActive~0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 2 |old(~waterLevel~0)|))) (or (and (= 0 ~pumpRunning~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-07 10:48:55,407 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or (and (not .cse0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse2 .cse3) .cse0 (let ((.cse4 (+ ~waterLevel~0 1))) (and .cse2 (<= |old(~waterLevel~0)| .cse4) (<= .cse4 |old(~waterLevel~0)|))) (not (<= 2 |old(~waterLevel~0)|)))) (or .cse1 .cse3 (not (= 1 |old(~waterLevel~0)|))))) [2020-07-07 10:48:55,408 INFO L264 CegarLoopResult]: At program point L333(lines 333 339) the Hoare annotation is: (let ((.cse5 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (and .cse5 (not .cse1) .cse7)) (.cse3 (= 0 ~pumpRunning~0))) (and (let ((.cse6 (+ ~waterLevel~0 1))) (let ((.cse2 (<= |old(~waterLevel~0)| .cse6)) (.cse4 (<= .cse6 |old(~waterLevel~0)|))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (not (<= 2 |old(~waterLevel~0)|)) (and .cse5 .cse2 .cse4)))) (or .cse0 (and .cse3 .cse7) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)))))) [2020-07-07 10:48:55,408 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 322 345) no Hoare annotation was computed. [2020-07-07 10:48:55,408 INFO L264 CegarLoopResult]: At program point L328(line 328) the Hoare annotation is: (and (or (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|)))) [2020-07-07 10:48:55,408 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 322 345) no Hoare annotation was computed. [2020-07-07 10:48:55,408 INFO L268 CegarLoopResult]: For program point L326(lines 325 344) no Hoare annotation was computed. [2020-07-07 10:48:55,408 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2020-07-07 10:48:55,408 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-07-07 10:48:55,409 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2020-07-07 10:48:55,409 INFO L268 CegarLoopResult]: For program point L56(lines 56 60) no Hoare annotation was computed. [2020-07-07 10:48:55,409 INFO L271 CegarLoopResult]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2020-07-07 10:48:55,409 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-07-07 10:48:55,409 INFO L271 CegarLoopResult]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2020-07-07 10:48:55,409 INFO L271 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: true [2020-07-07 10:48:55,409 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-07-07 10:48:55,409 INFO L271 CegarLoopResult]: At program point L67(lines 42 71) the Hoare annotation is: true [2020-07-07 10:48:55,409 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalENTRY(lines 216 224) no Hoare annotation was computed. [2020-07-07 10:48:55,409 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 216 224) no Hoare annotation was computed. [2020-07-07 10:48:55,410 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 216 224) no Hoare annotation was computed. [2020-07-07 10:48:55,410 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 180 191) the Hoare annotation is: (or (= 0 ~systemActive~0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) [2020-07-07 10:48:55,410 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 180 191) no Hoare annotation was computed. [2020-07-07 10:48:55,410 INFO L268 CegarLoopResult]: For program point L184-1(lines 180 191) no Hoare annotation was computed. [2020-07-07 10:48:55,410 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2020-07-07 10:48:55,410 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2020-07-07 10:48:55,410 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:48:55,410 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= 1 ~systemActive~0)) [2020-07-07 10:48:55,411 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 10:48:55,411 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 10:48:55,411 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 354 378) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0)) [2020-07-07 10:48:55,411 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 354 378) no Hoare annotation was computed. [2020-07-07 10:48:55,411 INFO L264 CegarLoopResult]: At program point L373(line 373) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0)) [2020-07-07 10:48:55,411 INFO L268 CegarLoopResult]: For program point L373-1(lines 354 378) no Hoare annotation was computed. [2020-07-07 10:48:55,411 INFO L264 CegarLoopResult]: At program point L368(line 368) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= 0 ~pumpRunning~0)) (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0)) [2020-07-07 10:48:55,412 INFO L264 CegarLoopResult]: At program point L364(line 364) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= 1 ~waterLevel~0)) .cse0 .cse1) (or .cse0 .cse1 (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))))) [2020-07-07 10:48:55,412 INFO L268 CegarLoopResult]: For program point L362(lines 362 370) no Hoare annotation was computed. [2020-07-07 10:48:55,412 INFO L264 CegarLoopResult]: At program point L360(line 360) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0) (= 0 ~pumpRunning~0)) [2020-07-07 10:48:55,412 INFO L268 CegarLoopResult]: For program point L360-1(line 360) no Hoare annotation was computed. [2020-07-07 10:48:55,412 INFO L268 CegarLoopResult]: For program point L358(lines 358 375) no Hoare annotation was computed. [2020-07-07 10:48:55,412 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 192 203) no Hoare annotation was computed. [2020-07-07 10:48:55,412 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 192 203) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2020-07-07 10:48:55,413 INFO L268 CegarLoopResult]: For program point L196-1(lines 192 203) no Hoare annotation was computed. [2020-07-07 10:48:55,413 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 598 605) no Hoare annotation was computed. [2020-07-07 10:48:55,413 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2020-07-07 10:48:55,413 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 598 605) the Hoare annotation is: true [2020-07-07 10:48:55,413 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 598 605) no Hoare annotation was computed. [2020-07-07 10:48:55,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:48:55 BoogieIcfgContainer [2020-07-07 10:48:55,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:48:55,432 INFO L168 Benchmark]: Toolchain (without parser) took 100627.56 ms. Allocated memory was 145.2 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 102.4 MB in the beginning and 631.8 MB in the end (delta: -529.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-07-07 10:48:55,433 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:48:55,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.02 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 174.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:55,434 INFO L168 Benchmark]: Boogie Preprocessor took 123.26 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:55,434 INFO L168 Benchmark]: RCFGBuilder took 1262.10 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 170.6 MB in the beginning and 196.8 MB in the end (delta: -26.1 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:55,435 INFO L168 Benchmark]: TraceAbstraction took 98481.47 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 935.3 MB). Free memory was 196.8 MB in the beginning and 631.8 MB in the end (delta: -435.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-07-07 10:48:55,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.02 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 102.1 MB in the beginning and 174.8 MB in the end (delta: -72.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.26 ms. Allocated memory is still 205.5 MB. Free memory was 174.8 MB in the beginning and 170.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1262.10 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 170.6 MB in the beginning and 196.8 MB in the end (delta: -26.1 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 98481.47 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 935.3 MB). Free memory was 196.8 MB in the beginning and 631.8 MB in the end (delta: -435.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(1 == \old(systemActive))) || !(1 == \old(waterLevel)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && 0 == splverifierCounter) && !(0 == systemActive)) || ((0 == splverifierCounter && 1 <= waterLevel) && 0 == pumpRunning)) || !(0 == \old(pumpRunning))) || !(1 == \old(systemActive))) || !(1 == \old(waterLevel)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 241 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 71.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 58.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 26.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1915 SDtfs, 4527 SDslu, 4080 SDs, 0 SdLazy, 14767 SolverSat, 3986 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1687 GetRequests, 1408 SyntacticMatches, 14 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3932 ImplicationChecksByTransitivity, 31.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2483occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 1319 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 4745 PreInvPairs, 4901 NumberOfFragments, 1177 HoareAnnotationTreeSize, 4745 FomulaSimplifications, 1467755 FormulaSimplificationTreeSizeReduction, 8.7s HoareSimplificationTime, 61 FomulaSimplificationsInter, 74882 FormulaSimplificationTreeSizeReductionInter, 17.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 2250 NumberOfCodeBlocks, 2250 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2231 ConstructedInterpolants, 0 QuantifiedInterpolants, 733395 SizeOfPredicates, 22 NumberOfNonLiveVariables, 6057 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 599/698 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...