/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_VARIABLES --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_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 00:53:39,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 00:53:39,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 00:53:39,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 00:53:39,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 00:53:39,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 00:53:39,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 00:53:39,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 00:53:39,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 00:53:39,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 00:53:39,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 00:53:39,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 00:53:39,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 00:53:39,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 00:53:39,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 00:53:39,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 00:53:39,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 00:53:39,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 00:53:39,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 00:53:39,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 00:53:39,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 00:53:39,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 00:53:39,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 00:53:39,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 00:53:39,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 00:53:39,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 00:53:39,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 00:53:39,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 00:53:39,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 00:53:39,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 00:53:39,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 00:53:39,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 00:53:39,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 00:53:39,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 00:53:39,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 00:53:39,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 00:53:39,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 00:53:39,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 00:53:39,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 00:53:39,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 00:53:39,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 00:53:39,468 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 [2020-07-20 00:53:39,503 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 00:53:39,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 00:53:39,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 00:53:39,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 00:53:39,508 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 00:53:39,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 00:53:39,509 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 00:53:39,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 00:53:39,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 00:53:39,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 00:53:39,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 00:53:39,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 00:53:39,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 00:53:39,510 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 00:53:39,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 00:53:39,514 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 00:53:39,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 00:53:39,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 00:53:39,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 00:53:39,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 00:53:39,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 00:53:39,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:53:39,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 00:53:39,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 00:53:39,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 00:53:39,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 00:53:39,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 00:53:39,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 00:53:39,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 00:53:39,517 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_VARIABLES 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 [2020-07-20 00:53:39,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 00:53:39,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 00:53:39,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 00:53:39,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 00:53:39,839 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 00:53:39,840 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-07-20 00:53:39,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/220429d04/585709cac85b4e72b7a47c894d91ca7f/FLAG0904cec25 [2020-07-20 00:53:40,466 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 00:53:40,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-07-20 00:53:40,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/220429d04/585709cac85b4e72b7a47c894d91ca7f/FLAG0904cec25 [2020-07-20 00:53:40,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/220429d04/585709cac85b4e72b7a47c894d91ca7f [2020-07-20 00:53:40,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 00:53:40,739 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 00:53:40,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 00:53:40,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 00:53:40,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 00:53:40,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:53:40" (1/1) ... [2020-07-20 00:53:40,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cbcbbf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:40, skipping insertion in model container [2020-07-20 00:53:40,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:53:40" (1/1) ... [2020-07-20 00:53:40,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 00:53:40,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 00:53:41,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:53:41,227 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 00:53:41,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:53:41,444 INFO L208 MainTranslator]: Completed translation [2020-07-20 00:53:41,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41 WrapperNode [2020-07-20 00:53:41,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 00:53:41,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 00:53:41,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 00:53:41,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 00:53:41,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (1/1) ... [2020-07-20 00:53:41,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (1/1) ... [2020-07-20 00:53:41,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (1/1) ... [2020-07-20 00:53:41,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (1/1) ... [2020-07-20 00:53:41,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (1/1) ... [2020-07-20 00:53:41,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (1/1) ... [2020-07-20 00:53:41,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (1/1) ... [2020-07-20 00:53:41,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 00:53:41,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 00:53:41,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 00:53:41,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 00:53:41,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (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 [2020-07-20 00:53:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 00:53:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 00:53:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 00:53:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 00:53:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 00:53:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 00:53:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 00:53:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 00:53:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 00:53:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 00:53:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 00:53:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-20 00:53:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 00:53:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 00:53:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 00:53:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 00:53:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 00:53:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 00:53:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 00:53:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 00:53:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 00:53:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 00:53:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 00:53:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 00:53:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 00:53:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 00:53:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 00:53:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 00:53:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 00:53:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 00:53:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 00:53:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 00:53:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 00:53:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 00:53:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 00:53:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 00:53:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 00:53:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 00:53:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 00:53:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 00:53:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 00:53:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 00:53:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-20 00:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 00:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 00:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 00:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 00:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 00:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 00:53:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 00:53:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 00:53:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 00:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 00:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 00:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 00:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 00:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 00:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 00:53:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 00:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 00:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 00:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 00:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 00:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 00:53:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 00:53:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 00:53:42,650 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 00:53:42,650 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 00:53:42,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:53:42 BoogieIcfgContainer [2020-07-20 00:53:42,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 00:53:42,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 00:53:42,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 00:53:42,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 00:53:42,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:53:40" (1/3) ... [2020-07-20 00:53:42,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8a1c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:53:42, skipping insertion in model container [2020-07-20 00:53:42,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:53:41" (2/3) ... [2020-07-20 00:53:42,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8a1c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:53:42, skipping insertion in model container [2020-07-20 00:53:42,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:53:42" (3/3) ... [2020-07-20 00:53:42,663 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-07-20 00:53:42,673 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 00:53:42,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 00:53:42,695 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 00:53:42,722 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 00:53:42,722 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 00:53:42,722 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 00:53:42,722 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 00:53:42,723 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 00:53:42,723 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 00:53:42,723 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 00:53:42,723 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 00:53:42,746 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-07-20 00:53:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 00:53:42,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:53:42,756 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] [2020-07-20 00:53:42,757 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:53:42,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:53:42,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1896668179, now seen corresponding path program 1 times [2020-07-20 00:53:42,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:53:42,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020145505] [2020-07-20 00:53:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:53:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,446 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:53:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:53:43,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020145505] [2020-07-20 00:53:43,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:53:43,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 00:53:43,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201490270] [2020-07-20 00:53:43,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 00:53:43,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:53:43,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 00:53:43,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:53:43,601 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2020-07-20 00:53:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:53:44,650 INFO L93 Difference]: Finished difference Result 269 states and 354 transitions. [2020-07-20 00:53:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 00:53:44,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-20 00:53:44,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:53:44,669 INFO L225 Difference]: With dead ends: 269 [2020-07-20 00:53:44,669 INFO L226 Difference]: Without dead ends: 146 [2020-07-20 00:53:44,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:53:44,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-20 00:53:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 114. [2020-07-20 00:53:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-20 00:53:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-07-20 00:53:44,758 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2020-07-20 00:53:44,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:53:44,758 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-07-20 00:53:44,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 00:53:44,759 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-07-20 00:53:44,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 00:53:44,762 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:53:44,762 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] [2020-07-20 00:53:44,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 00:53:44,763 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:53:44,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:53:44,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1220507007, now seen corresponding path program 1 times [2020-07-20 00:53:44,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:53:44,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339114904] [2020-07-20 00:53:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:53:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,115 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:53:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:53:45,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339114904] [2020-07-20 00:53:45,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:53:45,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 00:53:45,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516898369] [2020-07-20 00:53:45,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 00:53:45,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:53:45,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 00:53:45,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 00:53:45,192 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2020-07-20 00:53:45,608 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:53:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:53:46,267 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2020-07-20 00:53:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 00:53:46,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-20 00:53:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:53:46,272 INFO L225 Difference]: With dead ends: 193 [2020-07-20 00:53:46,272 INFO L226 Difference]: Without dead ends: 130 [2020-07-20 00:53:46,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 00:53:46,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-07-20 00:53:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 105. [2020-07-20 00:53:46,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-07-20 00:53:46,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-07-20 00:53:46,307 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2020-07-20 00:53:46,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:53:46,308 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-07-20 00:53:46,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 00:53:46,308 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-07-20 00:53:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 00:53:46,310 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:53:46,310 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] [2020-07-20 00:53:46,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 00:53:46,311 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:53:46,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:53:46,311 INFO L82 PathProgramCache]: Analyzing trace with hash -421022276, now seen corresponding path program 1 times [2020-07-20 00:53:46,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:53:46,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106072720] [2020-07-20 00:53:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:53:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,603 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:53:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:53:46,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106072720] [2020-07-20 00:53:46,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:53:46,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:53:46,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699574143] [2020-07-20 00:53:46,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:53:46,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:53:46,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:53:46,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:53:46,708 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 8 states. [2020-07-20 00:53:47,148 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:53:47,435 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:47,682 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:47,942 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:48,644 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:53:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:53:50,011 INFO L93 Difference]: Finished difference Result 363 states and 449 transitions. [2020-07-20 00:53:50,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 00:53:50,012 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-20 00:53:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:53:50,017 INFO L225 Difference]: With dead ends: 363 [2020-07-20 00:53:50,017 INFO L226 Difference]: Without dead ends: 282 [2020-07-20 00:53:50,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-20 00:53:50,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-07-20 00:53:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 216. [2020-07-20 00:53:50,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-20 00:53:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2020-07-20 00:53:50,102 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 51 [2020-07-20 00:53:50,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:53:50,103 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2020-07-20 00:53:50,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:53:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2020-07-20 00:53:50,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 00:53:50,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:53:50,106 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] [2020-07-20 00:53:50,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 00:53:50,107 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:53:50,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:53:50,107 INFO L82 PathProgramCache]: Analyzing trace with hash 498542477, now seen corresponding path program 1 times [2020-07-20 00:53:50,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:53:50,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108748437] [2020-07-20 00:53:50,108 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:53:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,452 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:53:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:50,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:53:50,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108748437] [2020-07-20 00:53:50,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:53:50,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:53:50,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253527746] [2020-07-20 00:53:50,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:53:50,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:53:50,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:53:50,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:53:50,547 INFO L87 Difference]: Start difference. First operand 216 states and 258 transitions. Second operand 8 states. [2020-07-20 00:53:50,956 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:53:51,980 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:52,291 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:52,571 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:52,852 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:53:53,193 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:53:53,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:53:53,951 INFO L93 Difference]: Finished difference Result 698 states and 907 transitions. [2020-07-20 00:53:53,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-20 00:53:53,953 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-07-20 00:53:53,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:53:53,958 INFO L225 Difference]: With dead ends: 698 [2020-07-20 00:53:53,958 INFO L226 Difference]: Without dead ends: 506 [2020-07-20 00:53:53,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-20 00:53:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-07-20 00:53:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 387. [2020-07-20 00:53:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2020-07-20 00:53:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 466 transitions. [2020-07-20 00:53:54,064 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 466 transitions. Word has length 57 [2020-07-20 00:53:54,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:53:54,065 INFO L479 AbstractCegarLoop]: Abstraction has 387 states and 466 transitions. [2020-07-20 00:53:54,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:53:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 466 transitions. [2020-07-20 00:53:54,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 00:53:54,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:53:54,068 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] [2020-07-20 00:53:54,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 00:53:54,068 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:53:54,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:53:54,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1390027601, now seen corresponding path program 1 times [2020-07-20 00:53:54,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:53:54,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479408784] [2020-07-20 00:53:54,069 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:53:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,389 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:53:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:53:54,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479408784] [2020-07-20 00:53:54,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:53:54,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 00:53:54,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514182747] [2020-07-20 00:53:54,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 00:53:54,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:53:54,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 00:53:54,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 00:53:54,465 INFO L87 Difference]: Start difference. First operand 387 states and 466 transitions. Second operand 9 states. [2020-07-20 00:53:54,871 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:53:55,853 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:56,150 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:56,408 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:53:56,875 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:53:57,144 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:53:57,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:53:57,939 INFO L93 Difference]: Finished difference Result 1120 states and 1488 transitions. [2020-07-20 00:53:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 00:53:57,939 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-07-20 00:53:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:53:57,946 INFO L225 Difference]: With dead ends: 1120 [2020-07-20 00:53:57,946 INFO L226 Difference]: Without dead ends: 757 [2020-07-20 00:53:57,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-20 00:53:57,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-07-20 00:53:58,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 599. [2020-07-20 00:53:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2020-07-20 00:53:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 735 transitions. [2020-07-20 00:53:58,068 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 735 transitions. Word has length 61 [2020-07-20 00:53:58,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:53:58,069 INFO L479 AbstractCegarLoop]: Abstraction has 599 states and 735 transitions. [2020-07-20 00:53:58,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 00:53:58,069 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 735 transitions. [2020-07-20 00:53:58,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 00:53:58,071 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:53:58,072 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:53:58,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 00:53:58,072 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:53:58,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:53:58,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1223870708, now seen corresponding path program 1 times [2020-07-20 00:53:58,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:53:58,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250396747] [2020-07-20 00:53:58,073 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:53:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,304 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:53:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:53:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:53:58,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250396747] [2020-07-20 00:53:58,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:53:58,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 00:53:58,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002082724] [2020-07-20 00:53:58,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 00:53:58,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:53:58,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 00:53:58,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 00:53:58,445 INFO L87 Difference]: Start difference. First operand 599 states and 735 transitions. Second operand 9 states. [2020-07-20 00:53:59,052 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:53:59,898 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:54:00,125 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:54:00,374 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:54:00,639 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:54:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:54:02,259 INFO L93 Difference]: Finished difference Result 2076 states and 2949 transitions. [2020-07-20 00:54:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 00:54:02,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-07-20 00:54:02,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:54:02,271 INFO L225 Difference]: With dead ends: 2076 [2020-07-20 00:54:02,271 INFO L226 Difference]: Without dead ends: 1501 [2020-07-20 00:54:02,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-07-20 00:54:02,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2020-07-20 00:54:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1127. [2020-07-20 00:54:02,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2020-07-20 00:54:02,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1380 transitions. [2020-07-20 00:54:02,577 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1380 transitions. Word has length 78 [2020-07-20 00:54:02,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:54:02,577 INFO L479 AbstractCegarLoop]: Abstraction has 1127 states and 1380 transitions. [2020-07-20 00:54:02,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 00:54:02,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1380 transitions. [2020-07-20 00:54:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 00:54:02,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:54:02,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:54:02,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 00:54:02,581 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:54:02,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:54:02,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1060992747, now seen corresponding path program 1 times [2020-07-20 00:54:02,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:54:02,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625088919] [2020-07-20 00:54:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:54:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,819 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:54:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:02,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:54:03,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625088919] [2020-07-20 00:54:03,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:54:03,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-20 00:54:03,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952630926] [2020-07-20 00:54:03,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 00:54:03,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:54:03,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 00:54:03,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-20 00:54:03,005 INFO L87 Difference]: Start difference. First operand 1127 states and 1380 transitions. Second operand 9 states. [2020-07-20 00:54:04,138 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:54:04,412 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-20 00:54:04,701 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:04,927 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:06,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:54:06,022 INFO L93 Difference]: Finished difference Result 2617 states and 3478 transitions. [2020-07-20 00:54:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 00:54:06,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-07-20 00:54:06,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:54:06,033 INFO L225 Difference]: With dead ends: 2617 [2020-07-20 00:54:06,034 INFO L226 Difference]: Without dead ends: 1514 [2020-07-20 00:54:06,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-20 00:54:06,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2020-07-20 00:54:06,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1167. [2020-07-20 00:54:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-07-20 00:54:06,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1420 transitions. [2020-07-20 00:54:06,305 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1420 transitions. Word has length 78 [2020-07-20 00:54:06,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:54:06,305 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1420 transitions. [2020-07-20 00:54:06,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 00:54:06,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1420 transitions. [2020-07-20 00:54:06,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-20 00:54:06,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:54:06,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:54:06,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-20 00:54:06,309 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:54:06,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:54:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1570465837, now seen corresponding path program 1 times [2020-07-20 00:54:06,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:54:06,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34490018] [2020-07-20 00:54:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:54:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,612 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:54:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:54:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:54:06,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34490018] [2020-07-20 00:54:06,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:54:06,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-20 00:54:06,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271363078] [2020-07-20 00:54:06,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 00:54:06,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:54:06,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 00:54:06,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-20 00:54:06,742 INFO L87 Difference]: Start difference. First operand 1167 states and 1420 transitions. Second operand 11 states. [2020-07-20 00:54:07,506 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:07,757 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:07,991 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:08,663 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:08,917 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:09,147 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:54:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:54:10,199 INFO L93 Difference]: Finished difference Result 2323 states and 3044 transitions. [2020-07-20 00:54:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-20 00:54:10,199 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2020-07-20 00:54:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:54:10,208 INFO L225 Difference]: With dead ends: 2323 [2020-07-20 00:54:10,209 INFO L226 Difference]: Without dead ends: 1180 [2020-07-20 00:54:10,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-20 00:54:10,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-07-20 00:54:10,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 949. [2020-07-20 00:54:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2020-07-20 00:54:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1124 transitions. [2020-07-20 00:54:10,423 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1124 transitions. Word has length 78 [2020-07-20 00:54:10,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:54:10,423 INFO L479 AbstractCegarLoop]: Abstraction has 949 states and 1124 transitions. [2020-07-20 00:54:10,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 00:54:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1124 transitions. [2020-07-20 00:54:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-20 00:54:10,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:54:10,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 00:54:10,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-20 00:54:10,431 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:54:10,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:54:10,431 INFO L82 PathProgramCache]: Analyzing trace with hash -341045236, now seen corresponding path program 1 times [2020-07-20 00:54:10,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:54:10,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422921184] [2020-07-20 00:54:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@757d8359 [2020-07-20 00:54:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:54:10,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:54:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:54:10,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:54:10,673 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 00:54:10,673 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 00:54:10,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-20 00:54:10,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:54:10 BoogieIcfgContainer [2020-07-20 00:54:10,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 00:54:10,868 INFO L168 Benchmark]: Toolchain (without parser) took 30129.34 ms. Allocated memory was 138.9 MB in the beginning and 649.1 MB in the end (delta: 510.1 MB). Free memory was 102.8 MB in the beginning and 543.4 MB in the end (delta: -440.6 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2020-07-20 00:54:10,872 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 00:54:10,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.83 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.4 MB in the beginning and 173.6 MB in the end (delta: -71.2 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-07-20 00:54:10,880 INFO L168 Benchmark]: Boogie Preprocessor took 97.30 ms. Allocated memory is still 203.4 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 00:54:10,880 INFO L168 Benchmark]: RCFGBuilder took 1110.45 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.5 MB in the beginning and 202.1 MB in the end (delta: -32.6 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2020-07-20 00:54:10,881 INFO L168 Benchmark]: TraceAbstraction took 28209.99 ms. Allocated memory was 237.0 MB in the beginning and 649.1 MB in the end (delta: 412.1 MB). Free memory was 202.1 MB in the beginning and 543.4 MB in the end (delta: -341.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. [2020-07-20 00:54:10,889 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.83 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.4 MB in the beginning and 173.6 MB in the end (delta: -71.2 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.30 ms. Allocated memory is still 203.4 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1110.45 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.5 MB in the beginning and 202.1 MB in the end (delta: -32.6 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28209.99 ms. Allocated memory was 237.0 MB in the beginning and 649.1 MB in the end (delta: 412.1 MB). Free memory was 202.1 MB in the beginning and 543.4 MB in the end (delta: -341.4 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 145]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L250] int pumpRunning = 0; [L251] int systemActive = 1; [L455] int cleanupTimeShifts = 4; [L720] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=173, \old(head)=167, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] int retValue_acc ; [L529] 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] [L533] 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] [L534] 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] [L535] 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] [L446] int retValue_acc ; [L449] retValue_acc = 1 [L450] 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] [L535] 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] [L535] tmp = valid_product() [L537] 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] [L539] 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] [L540] 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] [L522] 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] [L181] int splverifierCounter ; [L182] int tmp ; [L183] int tmp___0 ; [L184] int tmp___1 ; [L185] int tmp___2 ; [L188] 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] [L190] 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] [L192] 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] [L198] tmp = __VERIFIER_nondet_int() [L200] 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] [L202] 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] [L65] COND TRUE waterLevel < 2 [L66] 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] [L202] 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] [L208] tmp___0 = __VERIFIER_nondet_int() [L210] COND TRUE \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=1, waterLevel=2] [L212] CALL changeMethaneLevel() 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] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L212] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L218] tmp___2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___2=1, waterLevel=2] [L235] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L257] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L264] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L286] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L289] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L383] int retValue_acc ; [L384] int tmp ; [L385] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L389] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L389] tmp = isHighWaterSensorDry() [L391] COND FALSE !(\read(tmp)) [L394] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L396] retValue_acc = tmp___0 [L397] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L291] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] tmp = isHighWaterLevel() [L293] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L295] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L314] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L295] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L266] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L272] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L152] int tmp ; [L153] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L157] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] tmp = isMethaneLevelCritical() [L159] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L338] int retValue_acc ; [L341] retValue_acc = pumpRunning [L342] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L161] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L161] tmp___0 = isPumpRunning() [L163] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L165] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L145] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 22.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 799 SDtfs, 1497 SDslu, 1050 SDs, 0 SdLazy, 4688 SolverSat, 936 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1167occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 1352 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 143632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...