/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:53:24,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:53:24,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:53:24,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:53:24,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:53:24,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:53:24,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:53:24,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:53:24,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:53:24,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:53:24,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:53:24,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:53:24,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:53:24,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:53:24,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:53:24,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:53:24,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:53:24,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:53:24,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:53:24,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:53:24,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:53:24,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:53:24,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:53:24,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:53:24,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:53:24,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:53:24,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:53:24,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:53:24,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:53:24,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:53:24,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:53:24,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:53:24,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:53:24,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:53:24,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:53:24,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:53:24,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:53:24,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:53:24,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:53:24,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:53:24,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:53:24,659 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 [2020-07-21 12:53:24,674 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:53:24,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:53:24,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:53:24,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:53:24,676 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:53:24,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:53:24,676 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:53:24,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:53:24,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:53:24,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:53:24,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:53:24,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:53:24,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:53:24,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:53:24,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:53:24,678 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:53:24,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:53:24,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:53:24,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:53:24,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:53:24,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:53:24,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:53:24,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:53:24,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:53:24,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:53:24,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:53:24,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:24,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:53:24,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:53:24,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:53:24,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:53:24,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:53:24,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:53:24,989 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:53:24,990 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:53:24,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-07-21 12:53:25,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f74e48e/8cd1691c03e14be2ab97b959fb78944c/FLAG840154e31 [2020-07-21 12:53:25,600 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:53:25,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-07-21 12:53:25,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f74e48e/8cd1691c03e14be2ab97b959fb78944c/FLAG840154e31 [2020-07-21 12:53:25,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f74e48e/8cd1691c03e14be2ab97b959fb78944c [2020-07-21 12:53:25,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:53:25,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:53:25,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:25,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:53:25,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:53:25,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:25" (1/1) ... [2020-07-21 12:53:25,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1afea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:25, skipping insertion in model container [2020-07-21 12:53:25,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:25" (1/1) ... [2020-07-21 12:53:25,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:53:25,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:53:26,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:26,423 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:53:26,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:26,577 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:53:26,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26 WrapperNode [2020-07-21 12:53:26,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:26,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:53:26,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:53:26,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:53:26,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:53:26,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:53:26,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:53:26,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:53:26,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (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 [2020-07-21 12:53:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:53:26,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:53:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:53:26,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:53:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:53:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:53:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:53:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:53:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:53:26,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:53:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:53:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:53:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:53:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:53:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:26,739 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:53:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:53:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:53:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:53:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:53:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:53:26,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:53:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:53:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:53:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:53:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:53:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:26,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 12:53:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:53:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:53:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:53:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:53:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:53:26,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:53:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:53:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:53:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:53:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 12:53:26,743 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:53:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:53:26,747 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:53:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:53:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 12:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 12:53:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:53:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:53:27,869 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:53:27,869 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:53:27,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:27 BoogieIcfgContainer [2020-07-21 12:53:27,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:53:27,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:53:27,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:53:27,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:53:27,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:53:25" (1/3) ... [2020-07-21 12:53:27,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@819220a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:27, skipping insertion in model container [2020-07-21 12:53:27,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (2/3) ... [2020-07-21 12:53:27,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@819220a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:27, skipping insertion in model container [2020-07-21 12:53:27,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:27" (3/3) ... [2020-07-21 12:53:27,883 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-07-21 12:53:27,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:53:27,901 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:53:27,914 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:53:27,939 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:53:27,939 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:53:27,939 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:53:27,939 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:53:27,940 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:53:27,940 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:53:27,940 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:53:27,940 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:53:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-07-21 12:53:27,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 12:53:27,974 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:27,975 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] [2020-07-21 12:53:27,975 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:27,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:27,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1593418819, now seen corresponding path program 1 times [2020-07-21 12:53:27,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:27,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667409101] [2020-07-21 12:53:27,991 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,431 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:28,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:28,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:53:28,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:28,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:28,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667409101] [2020-07-21 12:53:28,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:28,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:53:28,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554307795] [2020-07-21 12:53:28,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:53:28,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:28,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:53:28,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:28,534 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2020-07-21 12:53:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:28,625 INFO L93 Difference]: Finished difference Result 318 states and 395 transitions. [2020-07-21 12:53:28,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:53:28,626 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 12:53:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:28,646 INFO L225 Difference]: With dead ends: 318 [2020-07-21 12:53:28,646 INFO L226 Difference]: Without dead ends: 159 [2020-07-21 12:53:28,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:28,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-07-21 12:53:28,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-07-21 12:53:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-21 12:53:28,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2020-07-21 12:53:28,762 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 46 [2020-07-21 12:53:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:28,763 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2020-07-21 12:53:28,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:53:28,763 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2020-07-21 12:53:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 12:53:28,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:28,775 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] [2020-07-21 12:53:28,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,976 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:28,977 INFO L82 PathProgramCache]: Analyzing trace with hash 261795935, now seen corresponding path program 1 times [2020-07-21 12:53:28,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:28,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862154402] [2020-07-21 12:53:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,271 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:29,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:29,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:53:29,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:29,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:29,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:29,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862154402] [2020-07-21 12:53:29,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:29,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:29,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018198495] [2020-07-21 12:53:29,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:29,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:29,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:29,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,312 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 3 states. [2020-07-21 12:53:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:29,337 INFO L93 Difference]: Finished difference Result 261 states and 309 transitions. [2020-07-21 12:53:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:29,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 12:53:29,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:29,340 INFO L225 Difference]: With dead ends: 261 [2020-07-21 12:53:29,341 INFO L226 Difference]: Without dead ends: 150 [2020-07-21 12:53:29,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-07-21 12:53:29,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-07-21 12:53:29,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-21 12:53:29,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2020-07-21 12:53:29,358 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 47 [2020-07-21 12:53:29,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:29,358 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2020-07-21 12:53:29,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:29,358 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2020-07-21 12:53:29,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 12:53:29,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:29,361 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] [2020-07-21 12:53:29,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:29,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:29,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1299589925, now seen corresponding path program 1 times [2020-07-21 12:53:29,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:29,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596381328] [2020-07-21 12:53:29,573 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,955 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:29,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:29,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:53:29,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:30,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:30,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596381328] [2020-07-21 12:53:30,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:30,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:30,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214911514] [2020-07-21 12:53:30,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:30,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:30,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:30,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:30,004 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 3 states. [2020-07-21 12:53:30,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:30,048 INFO L93 Difference]: Finished difference Result 400 states and 483 transitions. [2020-07-21 12:53:30,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:30,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-21 12:53:30,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:30,057 INFO L225 Difference]: With dead ends: 400 [2020-07-21 12:53:30,057 INFO L226 Difference]: Without dead ends: 274 [2020-07-21 12:53:30,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:30,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-21 12:53:30,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 270. [2020-07-21 12:53:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-21 12:53:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 325 transitions. [2020-07-21 12:53:30,111 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 325 transitions. Word has length 51 [2020-07-21 12:53:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:30,112 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 325 transitions. [2020-07-21 12:53:30,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 325 transitions. [2020-07-21 12:53:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 12:53:30,115 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:30,115 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] [2020-07-21 12:53:30,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,329 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:30,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:30,330 INFO L82 PathProgramCache]: Analyzing trace with hash -848411279, now seen corresponding path program 1 times [2020-07-21 12:53:30,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:30,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924391595] [2020-07-21 12:53:30,332 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,674 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:30,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:30,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:53:30,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:30,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:30,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:30,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924391595] [2020-07-21 12:53:30,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:30,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:30,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250738071] [2020-07-21 12:53:30,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:30,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:30,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:30,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:30,739 INFO L87 Difference]: Start difference. First operand 270 states and 325 transitions. Second operand 6 states. [2020-07-21 12:53:31,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:31,024 INFO L93 Difference]: Finished difference Result 743 states and 937 transitions. [2020-07-21 12:53:31,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:31,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-21 12:53:31,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:31,029 INFO L225 Difference]: With dead ends: 743 [2020-07-21 12:53:31,029 INFO L226 Difference]: Without dead ends: 497 [2020-07-21 12:53:31,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:31,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-07-21 12:53:31,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2020-07-21 12:53:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-07-21 12:53:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 624 transitions. [2020-07-21 12:53:31,072 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 624 transitions. Word has length 57 [2020-07-21 12:53:31,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:31,073 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 624 transitions. [2020-07-21 12:53:31,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 624 transitions. [2020-07-21 12:53:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 12:53:31,077 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:31,077 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] [2020-07-21 12:53:31,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:31,293 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:31,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:31,294 INFO L82 PathProgramCache]: Analyzing trace with hash -533846889, now seen corresponding path program 1 times [2020-07-21 12:53:31,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:31,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844897878] [2020-07-21 12:53:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:31,593 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:31,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:31,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:53:31,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:31,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:31,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844897878] [2020-07-21 12:53:31,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:31,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:31,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336198902] [2020-07-21 12:53:31,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:31,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:31,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:31,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:31,620 INFO L87 Difference]: Start difference. First operand 497 states and 624 transitions. Second operand 3 states. [2020-07-21 12:53:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:31,686 INFO L93 Difference]: Finished difference Result 1143 states and 1503 transitions. [2020-07-21 12:53:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:31,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 12:53:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:31,692 INFO L225 Difference]: With dead ends: 1143 [2020-07-21 12:53:31,693 INFO L226 Difference]: Without dead ends: 670 [2020-07-21 12:53:31,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-07-21 12:53:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 657. [2020-07-21 12:53:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-07-21 12:53:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2020-07-21 12:53:31,739 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 61 [2020-07-21 12:53:31,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:31,740 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2020-07-21 12:53:31,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:31,740 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2020-07-21 12:53:31,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 12:53:31,742 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:31,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:31,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:31,956 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:31,956 INFO L82 PathProgramCache]: Analyzing trace with hash -971494118, now seen corresponding path program 1 times [2020-07-21 12:53:31,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:31,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538234758] [2020-07-21 12:53:31,957 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,141 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:53:32,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:32,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 12:53:32,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 12:53:32,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:32,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538234758] [2020-07-21 12:53:32,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:32,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:32,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805825045] [2020-07-21 12:53:32,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:32,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:32,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:32,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:32,179 INFO L87 Difference]: Start difference. First operand 657 states and 825 transitions. Second operand 3 states. [2020-07-21 12:53:32,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:32,259 INFO L93 Difference]: Finished difference Result 755 states and 948 transitions. [2020-07-21 12:53:32,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:32,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-21 12:53:32,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:32,263 INFO L225 Difference]: With dead ends: 755 [2020-07-21 12:53:32,263 INFO L226 Difference]: Without dead ends: 383 [2020-07-21 12:53:32,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:32,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-07-21 12:53:32,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 377. [2020-07-21 12:53:32,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-07-21 12:53:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 463 transitions. [2020-07-21 12:53:32,286 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 463 transitions. Word has length 132 [2020-07-21 12:53:32,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:32,287 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 463 transitions. [2020-07-21 12:53:32,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 463 transitions. [2020-07-21 12:53:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 12:53:32,289 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:32,289 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, 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] [2020-07-21 12:53:32,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,505 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:32,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:32,506 INFO L82 PathProgramCache]: Analyzing trace with hash 2121665403, now seen corresponding path program 1 times [2020-07-21 12:53:32,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:32,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624341815] [2020-07-21 12:53:32,507 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,803 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:32,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:32,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:32,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 12:53:32,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:32,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624341815] [2020-07-21 12:53:32,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:32,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:32,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121625041] [2020-07-21 12:53:32,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:32,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:32,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:32,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:32,864 INFO L87 Difference]: Start difference. First operand 377 states and 463 transitions. Second operand 6 states. [2020-07-21 12:53:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:33,111 INFO L93 Difference]: Finished difference Result 386 states and 471 transitions. [2020-07-21 12:53:33,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:33,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 12:53:33,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:33,115 INFO L225 Difference]: With dead ends: 386 [2020-07-21 12:53:33,116 INFO L226 Difference]: Without dead ends: 335 [2020-07-21 12:53:33,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:33,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-07-21 12:53:33,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 331. [2020-07-21 12:53:33,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-07-21 12:53:33,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 404 transitions. [2020-07-21 12:53:33,134 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 404 transitions. Word has length 146 [2020-07-21 12:53:33,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:33,135 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 404 transitions. [2020-07-21 12:53:33,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 404 transitions. [2020-07-21 12:53:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 12:53:33,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:33,138 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:33,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:33,351 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:33,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:33,351 INFO L82 PathProgramCache]: Analyzing trace with hash 530822034, now seen corresponding path program 1 times [2020-07-21 12:53:33,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:33,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52423307] [2020-07-21 12:53:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:33,608 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:33,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:33,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:33,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 12:53:33,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:33,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52423307] [2020-07-21 12:53:33,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:33,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:33,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368979386] [2020-07-21 12:53:33,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:33,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:33,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:33,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:33,683 INFO L87 Difference]: Start difference. First operand 331 states and 404 transitions. Second operand 6 states. [2020-07-21 12:53:33,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:33,724 INFO L93 Difference]: Finished difference Result 652 states and 848 transitions. [2020-07-21 12:53:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:33,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-07-21 12:53:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:33,728 INFO L225 Difference]: With dead ends: 652 [2020-07-21 12:53:33,728 INFO L226 Difference]: Without dead ends: 345 [2020-07-21 12:53:33,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-07-21 12:53:33,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 341. [2020-07-21 12:53:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-07-21 12:53:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 415 transitions. [2020-07-21 12:53:33,746 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 415 transitions. Word has length 168 [2020-07-21 12:53:33,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:33,747 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 415 transitions. [2020-07-21 12:53:33,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:33,747 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 415 transitions. [2020-07-21 12:53:33,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 12:53:33,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:33,750 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:33,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:33,964 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:33,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:33,965 INFO L82 PathProgramCache]: Analyzing trace with hash 198178896, now seen corresponding path program 1 times [2020-07-21 12:53:33,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:33,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321855817] [2020-07-21 12:53:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,237 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:34,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:34,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:53:34,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 12:53:34,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:34,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321855817] [2020-07-21 12:53:34,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:34,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:53:34,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123535417] [2020-07-21 12:53:34,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:53:34,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:34,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:53:34,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:53:34,288 INFO L87 Difference]: Start difference. First operand 341 states and 415 transitions. Second operand 5 states. [2020-07-21 12:53:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:34,316 INFO L93 Difference]: Finished difference Result 639 states and 812 transitions. [2020-07-21 12:53:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:53:34,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-07-21 12:53:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:34,318 INFO L225 Difference]: With dead ends: 639 [2020-07-21 12:53:34,319 INFO L226 Difference]: Without dead ends: 322 [2020-07-21 12:53:34,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:53:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-07-21 12:53:34,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-07-21 12:53:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-07-21 12:53:34,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 389 transitions. [2020-07-21 12:53:34,335 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 389 transitions. Word has length 168 [2020-07-21 12:53:34,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:34,335 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 389 transitions. [2020-07-21 12:53:34,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:53:34,336 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 389 transitions. [2020-07-21 12:53:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 12:53:34,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:34,338 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:34,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,552 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:34,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:34,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1799344943, now seen corresponding path program 1 times [2020-07-21 12:53:34,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:34,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736205376] [2020-07-21 12:53:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,735 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:53:34,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:34,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:53:34,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:34,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:34,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736205376] [2020-07-21 12:53:34,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:34,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:34,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616180020] [2020-07-21 12:53:34,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:34,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:34,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:34,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:34,847 INFO L87 Difference]: Start difference. First operand 322 states and 389 transitions. Second operand 6 states. [2020-07-21 12:53:35,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:35,840 INFO L93 Difference]: Finished difference Result 859 states and 1110 transitions. [2020-07-21 12:53:35,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:35,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-07-21 12:53:35,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:35,845 INFO L225 Difference]: With dead ends: 859 [2020-07-21 12:53:35,845 INFO L226 Difference]: Without dead ends: 561 [2020-07-21 12:53:35,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-07-21 12:53:35,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 546. [2020-07-21 12:53:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2020-07-21 12:53:35,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 670 transitions. [2020-07-21 12:53:35,875 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 670 transitions. Word has length 168 [2020-07-21 12:53:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:35,875 INFO L479 AbstractCegarLoop]: Abstraction has 546 states and 670 transitions. [2020-07-21 12:53:35,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:35,875 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 670 transitions. [2020-07-21 12:53:35,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 12:53:35,878 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:35,879 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:36,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:36,092 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:36,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:36,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1229554551, now seen corresponding path program 1 times [2020-07-21 12:53:36,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:36,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558214107] [2020-07-21 12:53:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:36,392 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:36,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:36,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:36,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:36,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:36,972 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 12:53:36,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558214107] [2020-07-21 12:53:36,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:36,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 12:53:36,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430891670] [2020-07-21 12:53:36,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 12:53:36,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:36,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 12:53:36,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 12:53:36,975 INFO L87 Difference]: Start difference. First operand 546 states and 670 transitions. Second operand 12 states. [2020-07-21 12:53:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:38,803 INFO L93 Difference]: Finished difference Result 1419 states and 1886 transitions. [2020-07-21 12:53:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 12:53:38,804 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 172 [2020-07-21 12:53:38,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:38,811 INFO L225 Difference]: With dead ends: 1419 [2020-07-21 12:53:38,811 INFO L226 Difference]: Without dead ends: 897 [2020-07-21 12:53:38,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 332 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 12:53:38,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2020-07-21 12:53:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 734. [2020-07-21 12:53:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-07-21 12:53:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 904 transitions. [2020-07-21 12:53:38,867 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 904 transitions. Word has length 172 [2020-07-21 12:53:38,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:38,867 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 904 transitions. [2020-07-21 12:53:38,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 12:53:38,868 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 904 transitions. [2020-07-21 12:53:38,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-21 12:53:38,872 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:38,873 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, 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, 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] [2020-07-21 12:53:39,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:39,088 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:39,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:39,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1994438147, now seen corresponding path program 2 times [2020-07-21 12:53:39,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:39,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254025989] [2020-07-21 12:53:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:39,455 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:39,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:39,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:53:39,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:39,558 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:39,559 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 12:53:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 119 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 12:53:39,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:40,025 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:40,152 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:40,152 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:40,208 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:40,208 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:40,226 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:40,226 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:40,278 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 47 proven. 32 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-07-21 12:53:40,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254025989] [2020-07-21 12:53:40,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:40,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-21 12:53:40,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195554073] [2020-07-21 12:53:40,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 12:53:40,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:40,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 12:53:40,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-21 12:53:40,556 INFO L87 Difference]: Start difference. First operand 734 states and 904 transitions. Second operand 16 states. [2020-07-21 12:53:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:43,063 INFO L93 Difference]: Finished difference Result 2024 states and 2734 transitions. [2020-07-21 12:53:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-21 12:53:43,063 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 241 [2020-07-21 12:53:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:43,086 INFO L225 Difference]: With dead ends: 2024 [2020-07-21 12:53:43,086 INFO L226 Difference]: Without dead ends: 1376 [2020-07-21 12:53:43,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 472 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2020-07-21 12:53:43,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2020-07-21 12:53:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1082. [2020-07-21 12:53:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-07-21 12:53:43,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1322 transitions. [2020-07-21 12:53:43,245 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1322 transitions. Word has length 241 [2020-07-21 12:53:43,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:43,247 INFO L479 AbstractCegarLoop]: Abstraction has 1082 states and 1322 transitions. [2020-07-21 12:53:43,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 12:53:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1322 transitions. [2020-07-21 12:53:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-21 12:53:43,256 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:43,256 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, 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, 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] [2020-07-21 12:53:43,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:43,470 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:43,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:43,470 INFO L82 PathProgramCache]: Analyzing trace with hash 267135103, now seen corresponding path program 1 times [2020-07-21 12:53:43,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:43,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231606521] [2020-07-21 12:53:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:43,806 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:43,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:43,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:53:43,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 12:53:43,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:43,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231606521] [2020-07-21 12:53:43,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:43,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:43,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527407619] [2020-07-21 12:53:43,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:43,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:43,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:43,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:43,873 INFO L87 Difference]: Start difference. First operand 1082 states and 1322 transitions. Second operand 6 states. [2020-07-21 12:53:43,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:43,924 INFO L93 Difference]: Finished difference Result 1452 states and 1762 transitions. [2020-07-21 12:53:43,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:43,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-07-21 12:53:43,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:43,925 INFO L225 Difference]: With dead ends: 1452 [2020-07-21 12:53:43,926 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:53:43,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:43,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:53:43,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:53:43,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:53:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:53:43,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2020-07-21 12:53:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:43,932 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:53:43,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:53:43,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:53:44,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:44,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:53:45,467 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 14 [2020-07-21 12:53:45,789 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-07-21 12:53:46,508 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2020-07-21 12:53:46,796 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2020-07-21 12:53:47,019 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-07-21 12:53:48,352 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point L123(lines 123 127) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point L117-2(lines 117 138) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 92 147) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point L139(lines 116 140) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 92 147) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 92 147) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 12:53:48,422 INFO L268 CegarLoopResult]: For program point L193-1(line 193) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 148 207) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point L180(lines 180 184) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point L180-1(lines 180 184) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 148 207) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point L174-2(lines 174 199) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 148 207) no Hoare annotation was computed. [2020-07-21 12:53:48,423 INFO L268 CegarLoopResult]: For program point L200(lines 173 201) no Hoare annotation was computed. [2020-07-21 12:53:48,424 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 528 534) the Hoare annotation is: true [2020-07-21 12:53:48,424 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 528 534) no Hoare annotation was computed. [2020-07-21 12:53:48,424 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 535 543) no Hoare annotation was computed. [2020-07-21 12:53:48,424 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 535 543) the Hoare annotation is: true [2020-07-21 12:53:48,424 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 535 543) no Hoare annotation was computed. [2020-07-21 12:53:48,424 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 548 572) the Hoare annotation is: true [2020-07-21 12:53:48,425 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 548 572) no Hoare annotation was computed. [2020-07-21 12:53:48,425 INFO L264 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 .cse1) (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= 0 ~systemActive~0)) .cse1))) [2020-07-21 12:53:48,425 INFO L268 CegarLoopResult]: For program point L560(lines 560 566) no Hoare annotation was computed. [2020-07-21 12:53:48,425 INFO L264 CegarLoopResult]: At program point L558(line 558) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 2 ~waterLevel~0))) (or .cse0 (not (= 0 ~systemActive~0)) .cse2))) [2020-07-21 12:53:48,425 INFO L268 CegarLoopResult]: For program point L558-1(line 558) no Hoare annotation was computed. [2020-07-21 12:53:48,425 INFO L268 CegarLoopResult]: For program point L556(lines 556 569) no Hoare annotation was computed. [2020-07-21 12:53:48,425 INFO L268 CegarLoopResult]: For program point L556-1(lines 548 572) no Hoare annotation was computed. [2020-07-21 12:53:48,426 INFO L271 CegarLoopResult]: At program point L554(line 554) the Hoare annotation is: true [2020-07-21 12:53:48,426 INFO L268 CegarLoopResult]: For program point L554-1(line 554) no Hoare annotation was computed. [2020-07-21 12:53:48,426 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 486 508) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,426 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 486 508) no Hoare annotation was computed. [2020-07-21 12:53:48,426 INFO L264 CegarLoopResult]: At program point L498(line 498) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,426 INFO L264 CegarLoopResult]: At program point L498-1(line 498) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,426 INFO L268 CegarLoopResult]: For program point L496(lines 496 503) no Hoare annotation was computed. [2020-07-21 12:53:48,426 INFO L268 CegarLoopResult]: For program point L496-1(lines 496 503) no Hoare annotation was computed. [2020-07-21 12:53:48,426 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 12:53:48,426 INFO L264 CegarLoopResult]: At program point L493(line 493) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,427 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 486 508) no Hoare annotation was computed. [2020-07-21 12:53:48,427 INFO L264 CegarLoopResult]: At program point L492(line 492) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,427 INFO L264 CegarLoopResult]: At program point L492-1(line 492) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,427 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 12:53:48,427 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 12:53:48,427 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 441 464) no Hoare annotation was computed. [2020-07-21 12:53:48,427 INFO L268 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-07-21 12:53:48,427 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 12:53:48,427 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 441 464) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 441 464) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L268 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-07-21 12:53:48,428 INFO L264 CegarLoopResult]: At program point L769(line 769) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0))) [2020-07-21 12:53:48,429 INFO L264 CegarLoopResult]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (<= 1 processEnvironment__wrappee__methaneQuery_~tmp~6)))) [2020-07-21 12:53:48,429 INFO L268 CegarLoopResult]: For program point L763(lines 763 771) no Hoare annotation was computed. [2020-07-21 12:53:48,429 INFO L264 CegarLoopResult]: At program point L761(line 761) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:48,429 INFO L268 CegarLoopResult]: For program point L761-1(line 761) no Hoare annotation was computed. [2020-07-21 12:53:48,429 INFO L268 CegarLoopResult]: For program point L759(lines 759 776) no Hoare annotation was computed. [2020-07-21 12:53:48,429 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 755 779) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:48,429 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 755 779) no Hoare annotation was computed. [2020-07-21 12:53:48,429 INFO L264 CegarLoopResult]: At program point L774(line 774) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:48,430 INFO L268 CegarLoopResult]: For program point L774-1(lines 755 779) no Hoare annotation was computed. [2020-07-21 12:53:48,430 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 933 947) no Hoare annotation was computed. [2020-07-21 12:53:48,430 INFO L264 CegarLoopResult]: At program point L939(line 939) the Hoare annotation is: (and (not (= 0 |old(~pumpRunning~0)|)) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0))) [2020-07-21 12:53:48,430 INFO L268 CegarLoopResult]: For program point L937(lines 937 943) no Hoare annotation was computed. [2020-07-21 12:53:48,430 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 933 947) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= 0 ~pumpRunning~0)) (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) .cse0 (not (= 0 |old(~systemActive~0)|))) (or (not (<= 1 |old(~systemActive~0)|)) (<= 1 ~systemActive~0)))) [2020-07-21 12:53:48,430 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 933 947) no Hoare annotation was computed. [2020-07-21 12:53:48,430 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 850 858) no Hoare annotation was computed. [2020-07-21 12:53:48,430 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 850 858) the Hoare annotation is: true [2020-07-21 12:53:48,431 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 850 858) no Hoare annotation was computed. [2020-07-21 12:53:48,431 INFO L268 CegarLoopResult]: For program point L923(lines 923 927) no Hoare annotation was computed. [2020-07-21 12:53:48,431 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 914 932) the Hoare annotation is: true [2020-07-21 12:53:48,431 INFO L271 CegarLoopResult]: At program point L921(line 921) the Hoare annotation is: true [2020-07-21 12:53:48,431 INFO L268 CegarLoopResult]: For program point L923-2(lines 923 927) no Hoare annotation was computed. [2020-07-21 12:53:48,431 INFO L268 CegarLoopResult]: For program point L921-1(line 921) no Hoare annotation was computed. [2020-07-21 12:53:48,431 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 914 932) no Hoare annotation was computed. [2020-07-21 12:53:48,431 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 914 932) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point L866-2(lines 866 874) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point L889(line 889) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point L889-1(line 889) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 859 894) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point L878(lines 878 886) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point L878-2(lines 878 886) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 859 894) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 859 894) no Hoare annotation was computed. [2020-07-21 12:53:48,432 INFO L268 CegarLoopResult]: For program point L866(lines 866 874) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 521 527) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 521 527) the Hoare annotation is: true [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 46 91) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 46 91) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 46 91) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point L379(lines 379 386) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 359 404) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point L373(lines 373 393) no Hoare annotation was computed. [2020-07-21 12:53:48,433 INFO L268 CegarLoopResult]: For program point L373-1(lines 373 393) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 359 404) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 359 404) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 473 482) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,434 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 473 482) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 473 482) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 839 849) the Hoare annotation is: true [2020-07-21 12:53:48,434 INFO L271 CegarLoopResult]: At program point L844(line 844) the Hoare annotation is: true [2020-07-21 12:53:48,434 INFO L268 CegarLoopResult]: For program point L844-1(line 844) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 839 849) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 839 849) no Hoare annotation was computed. [2020-07-21 12:53:48,434 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 831 838) the Hoare annotation is: true [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 831 838) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 831 838) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point L662(lines 662 668) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 658 671) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 658 671) the Hoare annotation is: true [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 658 671) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L264 CegarLoopResult]: At program point L800(line 800) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point L800-1(lines 781 805) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L264 CegarLoopResult]: At program point L795(line 795) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:48,435 INFO L264 CegarLoopResult]: At program point L791(line 791) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 781 805) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L268 CegarLoopResult]: For program point L789(lines 789 797) no Hoare annotation was computed. [2020-07-21 12:53:48,435 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 781 805) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:48,436 INFO L264 CegarLoopResult]: At program point L787(line 787) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point L787-1(line 787) no Hoare annotation was computed. [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point L785(lines 785 802) no Hoare annotation was computed. [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 721 727) no Hoare annotation was computed. [2020-07-21 12:53:48,436 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 721 727) the Hoare annotation is: true [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point L960(lines 959 1006) no Hoare annotation was computed. [2020-07-21 12:53:48,436 INFO L264 CegarLoopResult]: At program point testENTRY(lines 949 1014) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point L989(lines 989 1002) no Hoare annotation was computed. [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point testFINAL(lines 949 1014) no Hoare annotation was computed. [2020-07-21 12:53:48,436 INFO L264 CegarLoopResult]: At program point L981(line 981) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point L979(lines 979 985) no Hoare annotation was computed. [2020-07-21 12:53:48,436 INFO L268 CegarLoopResult]: For program point L979-1(lines 979 985) no Hoare annotation was computed. [2020-07-21 12:53:48,437 INFO L264 CegarLoopResult]: At program point L1004(lines 959 1006) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:48,437 INFO L264 CegarLoopResult]: At program point L971(line 971) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:48,437 INFO L268 CegarLoopResult]: For program point L969(lines 969 975) no Hoare annotation was computed. [2020-07-21 12:53:48,437 INFO L268 CegarLoopResult]: For program point L969-1(lines 969 975) no Hoare annotation was computed. [2020-07-21 12:53:48,437 INFO L268 CegarLoopResult]: For program point L961(lines 961 965) no Hoare annotation was computed. [2020-07-21 12:53:48,437 INFO L264 CegarLoopResult]: At program point L1007(lines 958 1008) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:48,437 INFO L264 CegarLoopResult]: At program point L997(line 997) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) .cse0) (and (<= 1 ~waterLevel~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and .cse0 (<= 1 ~systemActive~0)))) [2020-07-21 12:53:48,437 INFO L268 CegarLoopResult]: For program point L995(lines 995 1001) no Hoare annotation was computed. [2020-07-21 12:53:48,437 INFO L268 CegarLoopResult]: For program point testEXIT(lines 949 1014) no Hoare annotation was computed. [2020-07-21 12:53:48,437 INFO L264 CegarLoopResult]: At program point L995-1(lines 989 1002) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:48,437 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 313 358) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 313 358) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 313 358) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point L333(lines 333 340) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point L327(lines 327 347) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point L327-1(lines 327 347) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 806 813) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 806 813) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 806 813) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 672 680) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 672 680) the Hoare annotation is: true [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 672 680) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point L634(lines 634 642) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 626 648) no Hoare annotation was computed. [2020-07-21 12:53:48,438 INFO L268 CegarLoopResult]: For program point L634-2(lines 634 642) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 626 648) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 626 648) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point L256(lines 256 297) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 210 312) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point L275(line 275) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point L275-1(line 275) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point L234(lines 234 238) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point L298(lines 298 309) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 210 312) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point L261(lines 261 265) no Hoare annotation was computed. [2020-07-21 12:53:48,439 INFO L268 CegarLoopResult]: For program point L259-2(lines 259 279) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point L280(lines 258 281) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 210 312) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point L239(lines 239 255) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point L299(lines 299 306) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point L260(lines 259 279) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point L291(line 291) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point L291-1(line 291) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 511 520) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 511 520) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 511 520) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:48,440 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 12:53:48,441 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:48,441 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 814 830) no Hoare annotation was computed. [2020-07-21 12:53:48,441 INFO L264 CegarLoopResult]: At program point L825(line 825) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:48,441 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 814 830) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:48,441 INFO L268 CegarLoopResult]: For program point L825-1(lines 814 830) no Hoare annotation was computed. [2020-07-21 12:53:48,441 INFO L268 CegarLoopResult]: For program point L821(lines 821 827) no Hoare annotation was computed. [2020-07-21 12:53:48,441 INFO L264 CegarLoopResult]: At program point L819(line 819) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:48,441 INFO L268 CegarLoopResult]: For program point L819-1(line 819) no Hoare annotation was computed. [2020-07-21 12:53:48,441 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 649 657) the Hoare annotation is: true [2020-07-21 12:53:48,441 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 649 657) no Hoare annotation was computed. [2020-07-21 12:53:48,441 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 649 657) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 895 913) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point L904(lines 904 908) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L271 CegarLoopResult]: At program point L902(line 902) the Hoare annotation is: true [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point L904-2(lines 904 908) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 895 913) the Hoare annotation is: true [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point L902-1(line 902) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 895 913) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point L609-1(lines 605 616) no Hoare annotation was computed. [2020-07-21 12:53:48,442 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 605 616) the Hoare annotation is: true [2020-07-21 12:53:48,442 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 605 616) no Hoare annotation was computed. [2020-07-21 12:53:48,443 INFO L264 CegarLoopResult]: At program point L703(line 703) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= 0 ~systemActive~0)) .cse1) (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:53:48,443 INFO L268 CegarLoopResult]: For program point L701(lines 700 719) no Hoare annotation was computed. [2020-07-21 12:53:48,443 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 697 720) the Hoare annotation is: (let ((.cse1 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 0 ~pumpRunning~0)) (.cse6 (not (= 0 ~systemActive~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2)) (or .cse0 .cse3 .cse4 .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse4 (<= ~waterLevel~0 1) .cse2) .cse3 .cse5) (or .cse6 .cse3 .cse4) (or .cse6 .cse3 (<= 1 ~waterLevel~0) .cse5))) [2020-07-21 12:53:48,443 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 697 720) no Hoare annotation was computed. [2020-07-21 12:53:48,443 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 697 720) no Hoare annotation was computed. [2020-07-21 12:53:48,443 INFO L264 CegarLoopResult]: At program point L710(line 710) the Hoare annotation is: (let ((.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (not (= 0 ~systemActive~0)) .cse0) (or .cse1 (and .cse2 .cse3) .cse0 .cse4) (or .cse1 .cse4 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (<= ~waterLevel~0 1) .cse3) .cse0 (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:53:48,444 INFO L264 CegarLoopResult]: At program point L708(lines 708 714) the Hoare annotation is: (let ((.cse7 (not (= 0 ~systemActive~0))) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= 0 ~pumpRunning~0))) (and (let ((.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse1 .cse2 .cse3) (and .cse4 (<= ~waterLevel~0 1) .cse3) .cse5 .cse6)) (or .cse7 .cse5 .cse4) (or .cse7 .cse5 (<= 1 ~waterLevel~0) .cse6) (let ((.cse8 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse0 (and .cse1 .cse2 .cse8) (and .cse2 .cse8 .cse4) (not (<= 2 |old(~waterLevel~0)|)))))) [2020-07-21 12:53:48,444 INFO L271 CegarLoopResult]: At program point L418-2(lines 418 432) the Hoare annotation is: true [2020-07-21 12:53:48,444 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 408 437) no Hoare annotation was computed. [2020-07-21 12:53:48,444 INFO L271 CegarLoopResult]: At program point L414(line 414) the Hoare annotation is: true [2020-07-21 12:53:48,444 INFO L268 CegarLoopResult]: For program point L414-1(line 414) no Hoare annotation was computed. [2020-07-21 12:53:48,444 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 408 437) the Hoare annotation is: true [2020-07-21 12:53:48,444 INFO L271 CegarLoopResult]: At program point L433(lines 408 437) the Hoare annotation is: true [2020-07-21 12:53:48,444 INFO L268 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-07-21 12:53:48,444 INFO L268 CegarLoopResult]: For program point L422(lines 422 426) no Hoare annotation was computed. [2020-07-21 12:53:48,444 INFO L271 CegarLoopResult]: At program point L422-1(lines 422 426) the Hoare annotation is: true [2020-07-21 12:53:48,445 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 12:53:48,445 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 617 625) the Hoare annotation is: true [2020-07-21 12:53:48,445 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 617 625) no Hoare annotation was computed. [2020-07-21 12:53:48,445 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 617 625) no Hoare annotation was computed. [2020-07-21 12:53:48,445 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 581 592) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-21 12:53:48,445 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 581 592) no Hoare annotation was computed. [2020-07-21 12:53:48,445 INFO L268 CegarLoopResult]: For program point L585-1(lines 581 592) no Hoare annotation was computed. [2020-07-21 12:53:48,445 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 465 471) no Hoare annotation was computed. [2020-07-21 12:53:48,446 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 465 471) the Hoare annotation is: true [2020-07-21 12:53:48,446 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:48,446 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:53:48,446 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:53:48,446 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:48,446 INFO L268 CegarLoopResult]: For program point L737(lines 737 745) no Hoare annotation was computed. [2020-07-21 12:53:48,446 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 729 753) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:48,446 INFO L264 CegarLoopResult]: At program point L735(line 735) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:48,447 INFO L268 CegarLoopResult]: For program point L735-1(line 735) no Hoare annotation was computed. [2020-07-21 12:53:48,447 INFO L268 CegarLoopResult]: For program point L733(lines 733 750) no Hoare annotation was computed. [2020-07-21 12:53:48,447 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 729 753) no Hoare annotation was computed. [2020-07-21 12:53:48,447 INFO L264 CegarLoopResult]: At program point L748(line 748) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:48,447 INFO L268 CegarLoopResult]: For program point L748-1(lines 729 753) no Hoare annotation was computed. [2020-07-21 12:53:48,447 INFO L264 CegarLoopResult]: At program point L743(line 743) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~5) (= 0 ~pumpRunning~0))) [2020-07-21 12:53:48,447 INFO L264 CegarLoopResult]: At program point L739(line 739) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 .cse1 (not (<= ~waterLevel~0 1))) (or .cse0 .cse1 (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))))) [2020-07-21 12:53:48,447 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 593 604) no Hoare annotation was computed. [2020-07-21 12:53:48,447 INFO L268 CegarLoopResult]: For program point L597-1(lines 593 604) no Hoare annotation was computed. [2020-07-21 12:53:48,448 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 593 604) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse3 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse1)) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and (<= ~waterLevel~0 1) .cse1) .cse2 .cse3) (or (not (= 0 ~systemActive~0)) (<= 1 ~waterLevel~0) .cse2 .cse3))) [2020-07-21 12:53:48,448 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 682 689) no Hoare annotation was computed. [2020-07-21 12:53:48,448 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 686) no Hoare annotation was computed. [2020-07-21 12:53:48,448 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 682 689) the Hoare annotation is: true [2020-07-21 12:53:48,448 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 682 689) no Hoare annotation was computed. [2020-07-21 12:53:48,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:53:48 BoogieIcfgContainer [2020-07-21 12:53:48,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:53:48,467 INFO L168 Benchmark]: Toolchain (without parser) took 22564.00 ms. Allocated memory was 143.7 MB in the beginning and 522.7 MB in the end (delta: 379.1 MB). Free memory was 100.5 MB in the beginning and 365.6 MB in the end (delta: -265.2 MB). Peak memory consumption was 360.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:48,468 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:53:48,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.91 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 100.1 MB in the beginning and 168.5 MB in the end (delta: -68.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:48,469 INFO L168 Benchmark]: Boogie Preprocessor took 91.50 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 164.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:48,471 INFO L168 Benchmark]: RCFGBuilder took 1204.91 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 164.1 MB in the beginning and 189.8 MB in the end (delta: -25.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:48,471 INFO L168 Benchmark]: TraceAbstraction took 20589.33 ms. Allocated memory was 232.3 MB in the beginning and 522.7 MB in the end (delta: 290.5 MB). Free memory was 188.3 MB in the beginning and 365.6 MB in the end (delta: -177.3 MB). Peak memory consumption was 359.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:48,476 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 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.91 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 100.1 MB in the beginning and 168.5 MB in the end (delta: -68.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.50 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 164.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1204.91 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 164.1 MB in the beginning and 189.8 MB in the end (delta: -25.7 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20589.33 ms. Allocated memory was 232.3 MB in the beginning and 522.7 MB in the end (delta: 290.5 MB). Free memory was 188.3 MB in the beginning and 365.6 MB in the end (delta: -177.3 MB). Peak memory consumption was 359.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 686]: 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: 958]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 959]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || (((1 <= waterLevel && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && splverifierCounter <= 0) && 1 <= systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive))) || ((0 == systemActive && 0 == pumpRunning) && splverifierCounter <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.2s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2589 SDtfs, 1983 SDslu, 4553 SDs, 0 SdLazy, 4258 SolverSat, 1078 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2141 GetRequests, 2053 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1082occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 503 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 72 LocationsWithAnnotation, 2312 PreInvPairs, 2383 NumberOfFragments, 1332 HoareAnnotationTreeSize, 2312 FomulaSimplifications, 3844 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 72 FomulaSimplificationsInter, 6197 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1698 NumberOfCodeBlocks, 1548 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2096 ConstructedInterpolants, 0 QuantifiedInterpolants, 576726 SizeOfPredicates, 45 NumberOfNonLiveVariables, 10658 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 611/698 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...