/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 22:50:45,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:50:45,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:50:45,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:50:45,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:50:45,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:50:45,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:50:45,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:50:45,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:50:45,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:50:45,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:50:45,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:50:45,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:50:45,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:50:45,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:50:45,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:50:45,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:50:45,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:50:45,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:50:45,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:50:45,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:50:45,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:50:45,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:50:45,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:50:45,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:50:45,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:50:45,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:50:45,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:50:45,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:50:45,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:50:45,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:50:45,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:50:45,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:50:45,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:50:45,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:50:45,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:50:45,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:50:45,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:50:45,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:50:45,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:50:45,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:50:45,637 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 [2020-07-19 22:50:45,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:50:45,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:50:45,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:50:45,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:50:45,652 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:50:45,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:50:45,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:50:45,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:50:45,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:50:45,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:50:45,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:50:45,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:50:45,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:50:45,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:50:45,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:50:45,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:50:45,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:50:45,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:50:45,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:50:45,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:50:45,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:50:45,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:50:45,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:50:45,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:50:45,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:50:45,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:50:45,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:50:45,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:50:45,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:50:45,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 22:50:45,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:50:45,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:50:45,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:50:45,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:50:45,987 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:50:45,987 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-19 22:50:46,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9483587e0/0b508263cef84f51b592aa980d17f62d/FLAG40c6bcbb6 [2020-07-19 22:50:46,549 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:50:46,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-19 22:50:46,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9483587e0/0b508263cef84f51b592aa980d17f62d/FLAG40c6bcbb6 [2020-07-19 22:50:46,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9483587e0/0b508263cef84f51b592aa980d17f62d [2020-07-19 22:50:46,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:50:46,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:50:46,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:50:46,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:50:46,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:50:46,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:50:46" (1/1) ... [2020-07-19 22:50:46,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfe28c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:46, skipping insertion in model container [2020-07-19 22:50:46,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:50:46" (1/1) ... [2020-07-19 22:50:46,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:50:46,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:50:47,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:50:47,389 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:50:47,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:50:47,513 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:50:47,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47 WrapperNode [2020-07-19 22:50:47,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:50:47,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:50:47,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:50:47,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:50:47,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (1/1) ... [2020-07-19 22:50:47,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (1/1) ... [2020-07-19 22:50:47,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (1/1) ... [2020-07-19 22:50:47,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (1/1) ... [2020-07-19 22:50:47,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (1/1) ... [2020-07-19 22:50:47,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (1/1) ... [2020-07-19 22:50:47,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (1/1) ... [2020-07-19 22:50:47,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:50:47,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:50:47,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:50:47,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:50:47,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (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 [2020-07-19 22:50:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:50:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:50:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:50:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:50:47,698 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:50:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:50:47,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:50:47,700 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:50:47,700 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:50:47,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 22:50:47,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 22:50:47,701 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:50:47,702 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:50:47,702 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:50:47,702 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:50:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:50:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:50:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:50:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:50:47,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:50:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:50:47,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 22:50:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 22:50:47,705 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 22:50:47,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 22:50:47,707 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:50:47,707 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:50:47,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:50:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:50:47,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:50:47,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:50:47,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:50:47,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:50:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:50:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:50:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:50:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:50:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:50:47,709 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:50:47,710 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:50:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:50:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:50:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:50:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:50:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 22:50:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:50:47,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:50:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 22:50:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:50:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 22:50:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:50:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:50:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:50:47,712 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:50:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:50:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:50:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:50:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:50:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:50:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:50:47,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:50:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:50:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:50:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:50:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:50:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:50:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:50:47,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:50:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:50:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:50:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:50:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:50:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:50:47,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:50:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:50:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:50:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:50:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:50:47,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:50:48,744 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:50:48,745 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:50:48,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:50:48 BoogieIcfgContainer [2020-07-19 22:50:48,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:50:48,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:50:48,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:50:48,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:50:48,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:50:46" (1/3) ... [2020-07-19 22:50:48,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bd57c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:50:48, skipping insertion in model container [2020-07-19 22:50:48,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:50:47" (2/3) ... [2020-07-19 22:50:48,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bd57c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:50:48, skipping insertion in model container [2020-07-19 22:50:48,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:50:48" (3/3) ... [2020-07-19 22:50:48,759 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-07-19 22:50:48,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:50:48,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:50:48,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:50:48,816 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:50:48,816 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:50:48,816 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:50:48,816 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:50:48,817 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:50:48,817 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:50:48,817 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:50:48,817 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:50:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-19 22:50:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 22:50:48,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:48,852 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] [2020-07-19 22:50:48,853 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:48,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash 640895003, now seen corresponding path program 1 times [2020-07-19 22:50:48,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:48,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044627045] [2020-07-19 22:50:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79765b2a [2020-07-19 22:50:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,523 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:50:49,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044627045] [2020-07-19 22:50:49,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:49,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:50:49,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68469038] [2020-07-19 22:50:49,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:50:49,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:49,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:50:49,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:50:49,671 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-07-19 22:50:50,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:50,816 INFO L93 Difference]: Finished difference Result 323 states and 421 transitions. [2020-07-19 22:50:50,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:50:50,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 22:50:50,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:50,833 INFO L225 Difference]: With dead ends: 323 [2020-07-19 22:50:50,833 INFO L226 Difference]: Without dead ends: 174 [2020-07-19 22:50:50,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:50:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-07-19 22:50:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2020-07-19 22:50:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-19 22:50:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 165 transitions. [2020-07-19 22:50:50,930 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 165 transitions. Word has length 52 [2020-07-19 22:50:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:50,931 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 165 transitions. [2020-07-19 22:50:50,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:50:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 165 transitions. [2020-07-19 22:50:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 22:50:50,936 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:50,936 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] [2020-07-19 22:50:50,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:50:50,937 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:50,938 INFO L82 PathProgramCache]: Analyzing trace with hash -61253498, now seen corresponding path program 1 times [2020-07-19 22:50:50,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:50,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243390359] [2020-07-19 22:50:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79765b2a [2020-07-19 22:50:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,315 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:50:51,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243390359] [2020-07-19 22:50:51,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:51,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:50:51,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255351466] [2020-07-19 22:50:51,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:50:51,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:51,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:50:51,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:50:51,360 INFO L87 Difference]: Start difference. First operand 140 states and 165 transitions. Second operand 4 states. [2020-07-19 22:50:51,791 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:50:52,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:52,660 INFO L93 Difference]: Finished difference Result 250 states and 304 transitions. [2020-07-19 22:50:52,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:50:52,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 22:50:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:52,666 INFO L225 Difference]: With dead ends: 250 [2020-07-19 22:50:52,666 INFO L226 Difference]: Without dead ends: 158 [2020-07-19 22:50:52,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 22:50:52,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-07-19 22:50:52,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 131. [2020-07-19 22:50:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-19 22:50:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2020-07-19 22:50:52,720 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 53 [2020-07-19 22:50:52,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:52,721 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2020-07-19 22:50:52,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:50:52,721 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2020-07-19 22:50:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-19 22:50:52,724 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:52,724 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] [2020-07-19 22:50:52,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:50:52,724 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:52,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:52,725 INFO L82 PathProgramCache]: Analyzing trace with hash 2048791527, now seen corresponding path program 1 times [2020-07-19 22:50:52,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:52,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200255813] [2020-07-19 22:50:52,726 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79765b2a [2020-07-19 22:50:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,034 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:50:53,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200255813] [2020-07-19 22:50:53,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:53,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:50:53,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635005283] [2020-07-19 22:50:53,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:50:53,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:53,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:50:53,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:50:53,104 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 8 states. [2020-07-19 22:50:53,482 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:50:53,772 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:54,028 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:54,254 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:54,992 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:50:56,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:50:56,918 INFO L93 Difference]: Finished difference Result 451 states and 558 transitions. [2020-07-19 22:50:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:50:56,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-19 22:50:56,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:50:56,923 INFO L225 Difference]: With dead ends: 451 [2020-07-19 22:50:56,923 INFO L226 Difference]: Without dead ends: 344 [2020-07-19 22:50:56,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 22:50:56,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-07-19 22:50:57,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 286. [2020-07-19 22:50:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-19 22:50:57,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 345 transitions. [2020-07-19 22:50:57,005 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 345 transitions. Word has length 57 [2020-07-19 22:50:57,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:50:57,006 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 345 transitions. [2020-07-19 22:50:57,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:50:57,006 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 345 transitions. [2020-07-19 22:50:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-19 22:50:57,009 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:50:57,010 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, 1, 1] [2020-07-19 22:50:57,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:50:57,010 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:50:57,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:50:57,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1441609457, now seen corresponding path program 1 times [2020-07-19 22:50:57,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:50:57,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731573350] [2020-07-19 22:50:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79765b2a [2020-07-19 22:50:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,448 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:50:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:50:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:50:57,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731573350] [2020-07-19 22:50:57,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:50:57,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:50:57,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859123680] [2020-07-19 22:50:57,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:50:57,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:50:57,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:50:57,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:50:57,567 INFO L87 Difference]: Start difference. First operand 286 states and 345 transitions. Second operand 8 states. [2020-07-19 22:50:57,916 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:50:59,357 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:50:59,730 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:51:00,017 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:51:00,275 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:51:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:51:00,976 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-07-19 22:51:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 22:51:00,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-19 22:51:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:51:00,983 INFO L225 Difference]: With dead ends: 878 [2020-07-19 22:51:00,983 INFO L226 Difference]: Without dead ends: 616 [2020-07-19 22:51:00,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:51:00,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-07-19 22:51:01,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 549. [2020-07-19 22:51:01,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-07-19 22:51:01,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 675 transitions. [2020-07-19 22:51:01,120 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 675 transitions. Word has length 63 [2020-07-19 22:51:01,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:51:01,120 INFO L479 AbstractCegarLoop]: Abstraction has 549 states and 675 transitions. [2020-07-19 22:51:01,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:51:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 675 transitions. [2020-07-19 22:51:01,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 22:51:01,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:51:01,125 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, 1, 1, 1, 1, 1, 1] [2020-07-19 22:51:01,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:51:01,126 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:51:01,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:51:01,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1167704009, now seen corresponding path program 1 times [2020-07-19 22:51:01,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:51:01,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949450373] [2020-07-19 22:51:01,127 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79765b2a [2020-07-19 22:51:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,396 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:51:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:51:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:51:01,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949450373] [2020-07-19 22:51:01,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:51:01,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 22:51:01,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603224358] [2020-07-19 22:51:01,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:51:01,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:51:01,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:51:01,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 22:51:01,485 INFO L87 Difference]: Start difference. First operand 549 states and 675 transitions. Second operand 6 states. [2020-07-19 22:51:01,852 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:51:03,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:51:03,361 INFO L93 Difference]: Finished difference Result 1300 states and 1694 transitions. [2020-07-19 22:51:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 22:51:03,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-19 22:51:03,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:51:03,367 INFO L225 Difference]: With dead ends: 1300 [2020-07-19 22:51:03,367 INFO L226 Difference]: Without dead ends: 775 [2020-07-19 22:51:03,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:51:03,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-07-19 22:51:03,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 705. [2020-07-19 22:51:03,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2020-07-19 22:51:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 860 transitions. [2020-07-19 22:51:03,520 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 860 transitions. Word has length 67 [2020-07-19 22:51:03,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:51:03,521 INFO L479 AbstractCegarLoop]: Abstraction has 705 states and 860 transitions. [2020-07-19 22:51:03,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:51:03,521 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 860 transitions. [2020-07-19 22:51:03,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 22:51:03,523 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:51:03,524 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, 1, 1, 1, 1, 1, 1] [2020-07-19 22:51:03,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:51:03,524 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:51:03,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:51:03,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1951258889, now seen corresponding path program 1 times [2020-07-19 22:51:03,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:51:03,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363943215] [2020-07-19 22:51:03,525 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79765b2a [2020-07-19 22:51:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:51:03,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:51:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:51:03,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:51:03,738 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:51:03,738 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:51:03,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 22:51:03,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:51:03 BoogieIcfgContainer [2020-07-19 22:51:03,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:51:03,862 INFO L168 Benchmark]: Toolchain (without parser) took 17010.32 ms. Allocated memory was 140.5 MB in the beginning and 521.1 MB in the end (delta: 380.6 MB). Free memory was 102.9 MB in the beginning and 327.8 MB in the end (delta: -224.9 MB). Peak memory consumption was 155.8 MB. Max. memory is 7.1 GB. [2020-07-19 22:51:03,863 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 22:51:03,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.51 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 173.8 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-07-19 22:51:03,865 INFO L168 Benchmark]: Boogie Preprocessor took 116.26 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 22:51:03,866 INFO L168 Benchmark]: RCFGBuilder took 1119.62 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 169.6 MB in the beginning and 198.0 MB in the end (delta: -28.4 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-07-19 22:51:03,867 INFO L168 Benchmark]: TraceAbstraction took 15108.25 ms. Allocated memory was 237.5 MB in the beginning and 521.1 MB in the end (delta: 283.6 MB). Free memory was 198.0 MB in the beginning and 327.8 MB in the end (delta: -129.8 MB). Peak memory consumption was 153.9 MB. Max. memory is 7.1 GB. [2020-07-19 22:51:03,871 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.51 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 173.8 MB in the end (delta: -71.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.26 ms. Allocated memory is still 204.5 MB. Free memory was 173.8 MB in the beginning and 169.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1119.62 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 169.6 MB in the beginning and 198.0 MB in the end (delta: -28.4 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15108.25 ms. Allocated memory was 237.5 MB in the beginning and 521.1 MB in the end (delta: 283.6 MB). Free memory was 198.0 MB in the beginning and 327.8 MB in the end (delta: -129.8 MB). Peak memory consumption was 153.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=168, \old(head)=176, \old(head)=163, \old(methaneLevelCritical)=144, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int retValue_acc ; [L550] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L554] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L556] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L560] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L561] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L164] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L166] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L176] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L176] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L202] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L202] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L209] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L233] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L240] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L248] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L446] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L452] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L452] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L456] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L456] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L462] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L977] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 639 SDtfs, 1471 SDslu, 410 SDs, 0 SdLazy, 2272 SolverSat, 929 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=705occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 256 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 82182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...