/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 13:53:12,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 13:53:12,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 13:53:12,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 13:53:12,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 13:53:12,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 13:53:12,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 13:53:12,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 13:53:12,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 13:53:12,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 13:53:12,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 13:53:12,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 13:53:12,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 13:53:12,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 13:53:12,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 13:53:12,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 13:53:12,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 13:53:12,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 13:53:12,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 13:53:12,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 13:53:12,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 13:53:12,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 13:53:12,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 13:53:12,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 13:53:12,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 13:53:12,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 13:53:12,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 13:53:12,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 13:53:12,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 13:53:12,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 13:53:12,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 13:53:12,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 13:53:12,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 13:53:12,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 13:53:12,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 13:53:12,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 13:53:12,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 13:53:12,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 13:53:12,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 13:53:12,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 13:53:12,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 13:53:12,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 13:53:12,440 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 13:53:12,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 13:53:12,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 13:53:12,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 13:53:12,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 13:53:12,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 13:53:12,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 13:53:12,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 13:53:12,442 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 13:53:12,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 13:53:12,443 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 13:53:12,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 13:53:12,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 13:53:12,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 13:53:12,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 13:53:12,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 13:53:12,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 13:53:12,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 13:53:12,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 13:53:12,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 13:53:12,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 13:53:12,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 13:53:12,446 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 13:53:12,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 13:53:12,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 13:53:12,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 13:53:12,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 13:53:12,447 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 13:53:12,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-04 13:53:12,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 13:53:12,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 13:53:12,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 13:53:12,693 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 13:53:12,694 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 13:53:12,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-05-04 13:53:12,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2536173fc/4bdedcdb4358440a88538781df91e9f9/FLAGb167c97cc [2023-05-04 13:53:13,330 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 13:53:13,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-05-04 13:53:13,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2536173fc/4bdedcdb4358440a88538781df91e9f9/FLAGb167c97cc [2023-05-04 13:53:13,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2536173fc/4bdedcdb4358440a88538781df91e9f9 [2023-05-04 13:53:13,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 13:53:13,742 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 13:53:13,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 13:53:13,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 13:53:13,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 13:53:13,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:53:13" (1/1) ... [2023-05-04 13:53:13,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d8cff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:13, skipping insertion in model container [2023-05-04 13:53:13,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:53:13" (1/1) ... [2023-05-04 13:53:13,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 13:53:13,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 13:53:14,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2023-05-04 13:53:14,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 13:53:14,311 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 13:53:14,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2023-05-04 13:53:14,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 13:53:14,423 INFO L208 MainTranslator]: Completed translation [2023-05-04 13:53:14,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14 WrapperNode [2023-05-04 13:53:14,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 13:53:14,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 13:53:14,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 13:53:14,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 13:53:14,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,497 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 187 [2023-05-04 13:53:14,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 13:53:14,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 13:53:14,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 13:53:14,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 13:53:14,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,555 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 13:53:14,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 13:53:14,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 13:53:14,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 13:53:14,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (1/1) ... [2023-05-04 13:53:14,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 13:53:14,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:53:14,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-05-04 13:53:14,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-05-04 13:53:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 13:53:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-05-04 13:53:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-05-04 13:53:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 13:53:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 13:53:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 13:53:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 13:53:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 13:53:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 13:53:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 13:53:14,642 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 13:53:14,757 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 13:53:14,760 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 13:53:15,133 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 13:53:15,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 13:53:15,277 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 13:53:15,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:53:15 BoogieIcfgContainer [2023-05-04 13:53:15,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 13:53:15,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 13:53:15,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 13:53:15,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 13:53:15,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 01:53:13" (1/3) ... [2023-05-04 13:53:15,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fef159e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:53:15, skipping insertion in model container [2023-05-04 13:53:15,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:53:14" (2/3) ... [2023-05-04 13:53:15,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fef159e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:53:15, skipping insertion in model container [2023-05-04 13:53:15,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:53:15" (3/3) ... [2023-05-04 13:53:15,289 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-2.i [2023-05-04 13:53:15,296 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 13:53:15,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 13:53:15,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 13:53:15,307 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 13:53:15,414 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 13:53:15,471 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 13:53:15,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 13:53:15,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:53:15,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 13:53:15,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-05-04 13:53:15,517 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 13:53:15,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-05-04 13:53:15,540 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36b09dde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 13:53:15,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 13:53:15,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:53:15,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:53:15,774 INFO L85 PathProgramCache]: Analyzing trace with hash -881766732, now seen corresponding path program 1 times [2023-05-04 13:53:15,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:53:15,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159883354] [2023-05-04 13:53:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:53:15,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:53:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:53:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 13:53:16,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:53:16,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159883354] [2023-05-04 13:53:16,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159883354] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:53:16,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:53:16,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 13:53:16,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372719296] [2023-05-04 13:53:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:53:16,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 13:53:16,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:53:16,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 13:53:16,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 13:53:16,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:16,191 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:53:16,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:53:16,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:16,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 13:53:16,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:53:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:53:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1733584495, now seen corresponding path program 1 times [2023-05-04 13:53:16,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:53:16,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728384939] [2023-05-04 13:53:16,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:53:16,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:53:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:53:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 13:53:17,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:53:17,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728384939] [2023-05-04 13:53:17,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728384939] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:53:17,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:53:17,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-05-04 13:53:17,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536406180] [2023-05-04 13:53:17,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:53:17,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-05-04 13:53:17,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:53:17,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-05-04 13:53:17,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-05-04 13:53:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:17,768 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:53:17,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.588235294117647) internal successors, (95), 18 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:53:17,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:17,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:18,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:53:18,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 13:53:18,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:53:18,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:53:18,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1863350831, now seen corresponding path program 1 times [2023-05-04 13:53:18,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:53:18,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649027844] [2023-05-04 13:53:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:53:18,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:53:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:53:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 13:53:19,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:53:19,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649027844] [2023-05-04 13:53:19,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649027844] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:53:19,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508150776] [2023-05-04 13:53:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:53:19,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:53:19,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:53:19,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 13:53:19,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 13:53:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:53:19,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 57 conjunts are in the unsatisfiable core [2023-05-04 13:53:19,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:53:20,911 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 13:53:20,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-05-04 13:53:20,943 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 13:53:20,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2023-05-04 13:53:20,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:53:20,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:53:21,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-05-04 13:53:21,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 51 [2023-05-04 13:53:21,066 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:53:21,112 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:53:21,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2023-05-04 13:53:21,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-05-04 13:53:21,610 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 13:53:21,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:53:23,700 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse1 |c_~#top~0.offset|)))) (and (or (forall ((v_ArrVal_152 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_5| Int)) (not (= (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_5| v_ArrVal_152) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0) (or (forall ((v_ArrVal_154 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_5| Int)) (not (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| (store .cse1 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_5| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_154) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_5|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0))))) is different from false [2023-05-04 13:53:38,544 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification. DAG size of input: 35 DAG size of output: 25 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:53:38,577 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-05-04 13:53:38,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 67 [2023-05-04 13:53:38,585 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:53:38,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 42 [2023-05-04 13:53:38,598 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:53:38,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 82 [2023-05-04 13:53:38,613 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:53:38,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 64 [2023-05-04 13:53:38,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2023-05-04 13:53:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 3 not checked. [2023-05-04 13:53:41,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508150776] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:53:41,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:53:41,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 12] total 40 [2023-05-04 13:53:41,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858642785] [2023-05-04 13:53:41,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:53:41,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-05-04 13:53:41,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:53:41,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-05-04 13:53:41,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1366, Unknown=13, NotChecked=76, Total=1640 [2023-05-04 13:53:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:41,312 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:53:41,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 9.875) internal successors, (395), 41 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:53:41,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:53:41,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:53:41,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:54:56,432 WARN L233 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 47 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:56:16,746 WARN L233 SmtUtils]: Spent 16.04s on a formula simplification. DAG size of input: 47 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:56:28,820 WARN L233 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 54 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:57:12,983 WARN L233 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 48 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:57:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:37,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:57:37,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 13:57:37,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 13:57:38,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-05-04 13:57:38,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:57:38,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:57:38,157 INFO L85 PathProgramCache]: Analyzing trace with hash 481697734, now seen corresponding path program 1 times [2023-05-04 13:57:38,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:57:38,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862846495] [2023-05-04 13:57:38,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:57:38,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:57:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:57:38,466 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-05-04 13:57:38,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:57:38,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862846495] [2023-05-04 13:57:38,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862846495] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:57:38,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:57:38,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 13:57:38,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742695017] [2023-05-04 13:57:38,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:57:38,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 13:57:38,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:57:38,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 13:57:38,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 13:57:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:38,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:57:38,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.25) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:57:38,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:38,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:57:38,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-04 13:57:38,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:57:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-05-04 13:57:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:57:38,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 13:57:38,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:57:38,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:57:38,616 INFO L85 PathProgramCache]: Analyzing trace with hash -838704809, now seen corresponding path program 1 times [2023-05-04 13:57:38,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:57:38,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522606229] [2023-05-04 13:57:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:57:38,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:57:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:57:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 336 proven. 80 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-05-04 13:57:39,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:57:39,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522606229] [2023-05-04 13:57:39,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522606229] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:57:39,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276535521] [2023-05-04 13:57:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:57:39,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:57:39,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:57:39,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 13:57:39,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 13:57:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:57:39,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 9 conjunts are in the unsatisfiable core [2023-05-04 13:57:39,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:57:39,539 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 389 proven. 27 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-05-04 13:57:39,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:57:39,867 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 389 proven. 27 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-05-04 13:57:39,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276535521] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:57:39,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:57:39,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2023-05-04 13:57:39,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600689179] [2023-05-04 13:57:39,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:57:39,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-05-04 13:57:39,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:57:39,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-05-04 13:57:39,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-05-04 13:57:39,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:39,869 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:57:39,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 27.5) internal successors, (495), 18 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:57:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:57:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-05-04 13:57:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:57:39,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:57:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-05-04 13:57:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:57:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:57:40,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 13:57:40,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:57:40,664 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:57:40,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:57:40,665 INFO L85 PathProgramCache]: Analyzing trace with hash -318273728, now seen corresponding path program 1 times [2023-05-04 13:57:40,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:57:40,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636478753] [2023-05-04 13:57:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:57:40,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:57:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:57:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-05-04 13:57:41,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:57:41,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636478753] [2023-05-04 13:57:41,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636478753] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:57:41,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 13:57:41,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 13:57:41,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249842950] [2023-05-04 13:57:41,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:57:41,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 13:57:41,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:57:41,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 13:57:41,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 13:57:41,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:41,245 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:57:41,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:57:41,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:57:41,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:57:41,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2023-05-04 13:57:41,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:57:41,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:57:41,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:58:16,164 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 52 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:58:48,223 WARN L233 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 51 DAG size of output: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:58:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:58:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:58:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 13:58:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:58:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:58:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:58:58,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 13:58:58,699 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:58:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:58:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash 2029361201, now seen corresponding path program 2 times [2023-05-04 13:58:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:58:58,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677182925] [2023-05-04 13:58:58,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:58:58,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:58:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:58:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 13:58:59,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:58:59,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677182925] [2023-05-04 13:58:59,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677182925] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:58:59,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719421239] [2023-05-04 13:58:59,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 13:58:59,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:58:59,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:58:59,501 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 13:58:59,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 13:58:59,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-05-04 13:58:59,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 13:58:59,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 58 conjunts are in the unsatisfiable core [2023-05-04 13:58:59,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:59:00,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-05-04 13:59:00,276 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 13:59:00,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-05-04 13:59:00,303 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 13:59:00,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2023-05-04 13:59:00,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:59:00,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:59:00,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 17 [2023-05-04 13:59:00,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:59:06,542 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 30 DAG size of output: 29 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:59:07,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 13:59:07,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:59:07,121 INFO L356 Elim1Store]: treesize reduction 26, result has 65.3 percent of original size [2023-05-04 13:59:07,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 78 treesize of output 111 [2023-05-04 13:59:07,132 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:59:07,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2023-05-04 13:59:07,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-05-04 13:59:07,336 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:59:07,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 261 treesize of output 257 [2023-05-04 13:59:07,352 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:59:07,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 226 [2023-05-04 13:59:07,381 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-05-04 13:59:07,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 217 treesize of output 230 [2023-05-04 13:59:07,398 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:59:07,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 217 [2023-05-04 13:59:07,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-05-04 13:59:07,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 13:59:07,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719421239] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:59:07,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:59:07,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 11] total 34 [2023-05-04 13:59:07,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000797647] [2023-05-04 13:59:07,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:59:07,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-05-04 13:59:07,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:59:07,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-05-04 13:59:07,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2023-05-04 13:59:07,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:07,890 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:59:07,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 7.676470588235294) internal successors, (261), 35 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:59:07,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:07,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:07,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 13:59:07,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:59:07,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:59:07,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:59:07,890 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:20,452 WARN L233 SmtUtils]: Spent 12.19s on a formula simplification. DAG size of input: 39 DAG size of output: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:59:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 13:59:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:59:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:59:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:59:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:20,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-05-04 13:59:20,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:59:20,997 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:59:20,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:59:20,998 INFO L85 PathProgramCache]: Analyzing trace with hash -518279615, now seen corresponding path program 3 times [2023-05-04 13:59:20,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:59:20,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237874930] [2023-05-04 13:59:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:59:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:59:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:59:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 13:59:22,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:59:22,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237874930] [2023-05-04 13:59:22,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237874930] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:59:22,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188568331] [2023-05-04 13:59:22,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 13:59:22,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:59:22,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:59:22,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 13:59:22,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 13:59:22,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-05-04 13:59:22,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 13:59:22,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 60 conjunts are in the unsatisfiable core [2023-05-04 13:59:22,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:59:22,510 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 13:59:22,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-05-04 13:59:23,193 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 13:59:23,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-05-04 13:59:23,215 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 13:59:23,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2023-05-04 13:59:23,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:59:23,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:59:23,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 83 [2023-05-04 13:59:23,303 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:59:23,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2023-05-04 13:59:23,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2023-05-04 13:59:23,331 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:59:23,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2023-05-04 13:59:23,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-05-04 13:59:23,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-05-04 13:59:23,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 13:59:23,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 13:59:23,693 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse1 |c_~#top~0.offset|)))) (and (or (not .cse0) (forall ((v_ArrVal_636 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| Int) (v_ArrVal_632 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse1 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_632) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_636) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (forall ((v_ArrVal_636 (Array Int Int)) (v_ArrVal_635 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| Int)) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| v_ArrVal_635) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_636) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0)))) is different from false [2023-05-04 13:59:23,744 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= (select .cse1 |c_~#top~0.offset|) |c_thr1Thread1of1ForFork0_push_#t~mem8#1|))) (and (or .cse0 (forall ((v_ArrVal_636 (Array Int Int)) (v_ArrVal_635 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| Int)) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| v_ArrVal_635) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_636) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (forall ((v_ArrVal_636 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| Int) (v_ArrVal_632 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse1 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_632) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_16|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_636) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0))))) is different from false [2023-05-04 13:59:23,771 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-05-04 13:59:23,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 73 [2023-05-04 13:59:23,783 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:59:23,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 216 [2023-05-04 13:59:23,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 173 [2023-05-04 13:59:23,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 171 [2023-05-04 13:59:24,473 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 13:59:24,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 42 [2023-05-04 13:59:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 13:59:24,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188568331] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 13:59:24,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 13:59:24,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 14] total 43 [2023-05-04 13:59:24,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728295906] [2023-05-04 13:59:24,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 13:59:24,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-05-04 13:59:24,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:59:24,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-05-04 13:59:24,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1556, Unknown=2, NotChecked=162, Total=1892 [2023-05-04 13:59:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:24,498 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:59:24,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 5.116279069767442) internal successors, (220), 44 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:24,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:54,499 WARN L233 SmtUtils]: Spent 29.48s on a formula simplification. DAG size of input: 69 DAG size of output: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 13:59:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 13:59:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:59:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:59:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:59:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-05-04 13:59:57,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 13:59:57,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:59:57,466 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 13:59:57,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 13:59:57,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1005606053, now seen corresponding path program 2 times [2023-05-04 13:59:57,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 13:59:57,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675561816] [2023-05-04 13:59:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 13:59:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 13:59:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 13:59:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 13:59:58,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 13:59:58,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675561816] [2023-05-04 13:59:58,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675561816] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 13:59:58,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276323367] [2023-05-04 13:59:58,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 13:59:58,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 13:59:58,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 13:59:58,478 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 13:59:58,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 13:59:58,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-05-04 13:59:58,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 13:59:58,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 49 conjunts are in the unsatisfiable core [2023-05-04 13:59:58,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 13:59:59,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-05-04 13:59:59,151 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 13:59:59,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-05-04 13:59:59,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2023-05-04 13:59:59,182 INFO L356 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2023-05-04 13:59:59,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 68 [2023-05-04 13:59:59,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-05-04 13:59:59,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-05-04 13:59:59,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 13:59:59,245 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 51 [2023-05-04 13:59:59,287 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:59:59,290 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 13:59:59,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2023-05-04 13:59:59,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-05-04 13:59:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 13:59:59,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 13:59:59,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276323367] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 13:59:59,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 13:59:59,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 24 [2023-05-04 13:59:59,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043537347] [2023-05-04 13:59:59,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 13:59:59,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-05-04 13:59:59,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 13:59:59,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-05-04 13:59:59,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2023-05-04 13:59:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:59,677 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 13:59:59,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.3) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 13:59:59,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:59,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:59,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 13:59:59,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:59:59,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:59:59,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:59:59,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:59,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-05-04 13:59:59,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-05-04 13:59:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 13:59:59,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 14:00:00,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 14:00:00,157 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 14:00:00,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 14:00:00,157 INFO L85 PathProgramCache]: Analyzing trace with hash -263456374, now seen corresponding path program 2 times [2023-05-04 14:00:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 14:00:00,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817668600] [2023-05-04 14:00:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 14:00:00,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 14:00:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 14:00:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 14:00:01,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 14:00:01,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817668600] [2023-05-04 14:00:01,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817668600] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 14:00:01,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507383834] [2023-05-04 14:00:01,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 14:00:01,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 14:00:01,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 14:00:01,041 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 14:00:01,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-04 14:00:01,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-05-04 14:00:01,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 14:00:01,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 53 conjunts are in the unsatisfiable core [2023-05-04 14:00:01,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 14:00:01,794 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-05-04 14:00:01,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2023-05-04 14:00:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-05-04 14:00:02,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 14:00:02,364 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-05-04 14:00:02,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507383834] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 14:00:02,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 14:00:02,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 5] total 29 [2023-05-04 14:00:02,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040927972] [2023-05-04 14:00:02,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 14:00:02,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-05-04 14:00:02,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 14:00:02,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-05-04 14:00:02,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=726, Unknown=4, NotChecked=0, Total=870 [2023-05-04 14:00:02,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:02,366 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 14:00:02,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 13.620689655172415) internal successors, (395), 30 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-05-04 14:00:02,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 14:00:02,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-05-04 14:00:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 14:00:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:03,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-04 14:00:03,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 14:00:03,261 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 14:00:03,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 14:00:03,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1542034763, now seen corresponding path program 3 times [2023-05-04 14:00:03,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 14:00:03,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348258848] [2023-05-04 14:00:03,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 14:00:03,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 14:00:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 14:00:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 14:00:04,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 14:00:04,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348258848] [2023-05-04 14:00:04,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348258848] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 14:00:04,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020237339] [2023-05-04 14:00:04,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 14:00:04,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 14:00:04,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 14:00:04,406 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 14:00:04,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-04 14:00:04,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-05-04 14:00:04,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 14:00:04,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 51 conjunts are in the unsatisfiable core [2023-05-04 14:00:04,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 14:00:04,634 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 14:00:04,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-05-04 14:00:05,321 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 14:00:05,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-05-04 14:00:05,366 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 14:00:05,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2023-05-04 14:00:05,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 14:00:05,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 6 [2023-05-04 14:00:05,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 14:00:05,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 79 [2023-05-04 14:00:05,499 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 14:00:05,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 78 [2023-05-04 14:00:05,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-05-04 14:00:05,780 INFO L356 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2023-05-04 14:00:05,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 202 treesize of output 206 [2023-05-04 14:00:05,803 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 14:00:05,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 146 [2023-05-04 14:00:05,812 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 14:00:05,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 140 [2023-05-04 14:00:05,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-05-04 14:00:05,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-05-04 14:00:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 14:00:06,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 14:00:06,228 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_951 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_951) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-05-04 14:00:08,267 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse1 |c_~#top~0.offset|)))) (and (or (not .cse0) (forall ((v_ArrVal_949 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| Int) (v_ArrVal_951 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse1 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_949) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_951) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (forall ((v_ArrVal_947 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| Int) (v_ArrVal_951 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| v_ArrVal_947) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_951) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0)))) is different from false [2023-05-04 14:00:08,308 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= (select .cse1 |c_~#top~0.offset|) |c_thr1Thread1of1ForFork0_push_#t~mem8#1|))) (and (or (forall ((v_ArrVal_947 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| Int) (v_ArrVal_951 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| v_ArrVal_947) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_951) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0) (or (forall ((v_ArrVal_949 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| Int) (v_ArrVal_951 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse1 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_949) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_20|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_951) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0))))) is different from false [2023-05-04 14:00:08,339 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-05-04 14:00:08,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 73 [2023-05-04 14:00:08,347 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:08,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 48 [2023-05-04 14:00:08,363 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:08,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 215 treesize of output 213 [2023-05-04 14:00:08,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 170 [2023-05-04 14:00:08,387 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:08,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 181 [2023-05-04 14:00:08,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 108 [2023-05-04 14:00:08,920 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:08,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 42 [2023-05-04 14:00:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 5 not checked. [2023-05-04 14:00:08,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020237339] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 14:00:08,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 14:00:08,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 10] total 38 [2023-05-04 14:00:08,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763439109] [2023-05-04 14:00:08,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 14:00:08,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-05-04 14:00:08,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 14:00:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-05-04 14:00:08,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1082, Unknown=3, NotChecked=210, Total=1482 [2023-05-04 14:00:08,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:08,946 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 14:00:08,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 9.342105263157896) internal successors, (355), 39 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:08,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:17,454 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 55 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:00:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 14:00:18,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 14:00:18,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-05-04 14:00:18,405 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 14:00:18,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 14:00:18,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1090081911, now seen corresponding path program 4 times [2023-05-04 14:00:18,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 14:00:18,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122316562] [2023-05-04 14:00:18,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 14:00:18,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 14:00:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 14:00:19,490 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 14:00:19,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 14:00:19,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122316562] [2023-05-04 14:00:19,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122316562] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 14:00:19,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710112348] [2023-05-04 14:00:19,490 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 14:00:19,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 14:00:19,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 14:00:19,493 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 14:00:19,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-04 14:00:19,831 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 14:00:19,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 14:00:19,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 62 conjunts are in the unsatisfiable core [2023-05-04 14:00:19,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 14:00:19,939 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 14:00:19,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-05-04 14:00:20,790 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 14:00:20,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2023-05-04 14:00:20,821 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 14:00:20,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2023-05-04 14:00:20,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 14:00:20,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 6 [2023-05-04 14:00:20,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 14:00:20,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-05-04 14:00:21,078 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-05-04 14:00:21,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 57 [2023-05-04 14:00:21,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2023-05-04 14:00:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-04 14:00:21,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 14:00:21,347 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1050 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1050) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-05-04 14:00:23,396 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse1 |c_~#top~0.offset|)))) (and (or (not .cse0) (forall ((|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| Int) (v_ArrVal_1044 (Array Int Int)) (v_ArrVal_1050 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse1 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_1044) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1050) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (forall ((v_ArrVal_1047 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| Int) (v_ArrVal_1050 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| v_ArrVal_1047) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1050) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0)))) is different from false [2023-05-04 14:00:23,446 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse1 (= (select .cse0 |c_~#top~0.offset|) |c_thr1Thread1of1ForFork0_push_#t~mem8#1|))) (and (or (forall ((|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| Int) (v_ArrVal_1044 (Array Int Int)) (v_ArrVal_1050 (Array Int Int))) (not (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse0 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_1044) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1050) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse1)) (or (forall ((v_ArrVal_1047 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| Int) (v_ArrVal_1050 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_23| v_ArrVal_1047) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1050) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse1)))) is different from false [2023-05-04 14:00:23,470 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-05-04 14:00:23,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 73 [2023-05-04 14:00:23,478 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:23,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 48 [2023-05-04 14:00:23,496 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:23,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 146 [2023-05-04 14:00:23,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 109 [2023-05-04 14:00:23,516 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:23,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 120 [2023-05-04 14:00:23,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 49 [2023-05-04 14:00:24,440 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 14:00:24,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 42 [2023-05-04 14:00:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 3 trivial. 6 not checked. [2023-05-04 14:00:24,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710112348] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 14:00:24,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 14:00:24,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 15] total 47 [2023-05-04 14:00:24,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71904521] [2023-05-04 14:00:24,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 14:00:24,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-05-04 14:00:24,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 14:00:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-05-04 14:00:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1784, Unknown=3, NotChecked=264, Total=2256 [2023-05-04 14:00:24,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:24,454 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 14:00:24,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 7.404255319148936) internal successors, (348), 48 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 14:00:24,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:00:24,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:24,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 14:00:24,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 14:01:19,633 WARN L233 SmtUtils]: Spent 54.53s on a formula simplification. DAG size of input: 78 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:01:53,535 WARN L233 SmtUtils]: Spent 28.76s on a formula simplification. DAG size of input: 60 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:02:01,715 WARN L233 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 51 DAG size of output: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:02:42,693 WARN L233 SmtUtils]: Spent 36.06s on a formula simplification. DAG size of input: 55 DAG size of output: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:02:59,643 WARN L233 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 47 DAG size of output: 31 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:03:26,551 WARN L233 SmtUtils]: Spent 22.73s on a formula simplification. DAG size of input: 56 DAG size of output: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:03:36,750 WARN L233 SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 52 DAG size of output: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:04:17,918 WARN L233 SmtUtils]: Spent 36.28s on a formula simplification. DAG size of input: 58 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:04:50,200 WARN L233 SmtUtils]: Spent 19.38s on a formula simplification. DAG size of input: 52 DAG size of output: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 14:04:50,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-04 14:04:50,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 14:04:50,941 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at most one deprecated predicate at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:973) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:219) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:203) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:219) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:203) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:203) at de.uni_freiburg.informatik.ultimate.automata.partialorder.MinimalSleepSetReduction.internalSuccessors(MinimalSleepSetReduction.java:154) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.(NestedIterator.java:62) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIteratorNoopConstruction.(NestedIteratorNoopConstruction.java:48) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$1(INwaOutgoingLetterAndTransitionProvider.java:124) at java.base/java.lang.Iterable.spliterator(Iterable.java:101) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:235) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:165) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:98) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:122) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:73) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:592) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:466) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-05-04 14:04:50,945 INFO L158 Benchmark]: Toolchain (without parser) took 697202.67ms. Allocated memory was 188.7MB in the beginning and 326.1MB in the end (delta: 137.4MB). Free memory was 127.5MB in the beginning and 209.4MB in the end (delta: -81.8MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2023-05-04 14:04:50,945 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 14:04:50,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.60ms. Allocated memory was 188.7MB in the beginning and 271.6MB in the end (delta: 82.8MB). Free memory was 127.3MB in the beginning and 230.1MB in the end (delta: -102.8MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2023-05-04 14:04:50,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.55ms. Allocated memory is still 271.6MB. Free memory was 230.1MB in the beginning and 227.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 14:04:50,945 INFO L158 Benchmark]: Boogie Preprocessor took 67.97ms. Allocated memory is still 271.6MB. Free memory was 227.4MB in the beginning and 225.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 14:04:50,945 INFO L158 Benchmark]: RCFGBuilder took 713.33ms. Allocated memory is still 271.6MB. Free memory was 225.3MB in the beginning and 188.6MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-05-04 14:04:50,946 INFO L158 Benchmark]: TraceAbstraction took 695661.92ms. Allocated memory was 271.6MB in the beginning and 326.1MB in the end (delta: 54.5MB). Free memory was 187.6MB in the beginning and 209.4MB in the end (delta: -21.8MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. [2023-05-04 14:04:50,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 679.60ms. Allocated memory was 188.7MB in the beginning and 271.6MB in the end (delta: 82.8MB). Free memory was 127.3MB in the beginning and 230.1MB in the end (delta: -102.8MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.55ms. Allocated memory is still 271.6MB. Free memory was 230.1MB in the beginning and 227.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.97ms. Allocated memory is still 271.6MB. Free memory was 227.4MB in the beginning and 225.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 713.33ms. Allocated memory is still 271.6MB. Free memory was 225.3MB in the beginning and 188.6MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 695661.92ms. Allocated memory was 271.6MB in the beginning and 326.1MB in the end (delta: 54.5MB). Free memory was 187.6MB in the beginning and 209.4MB in the end (delta: -21.8MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at most one deprecated predicate de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at most one deprecated predicate: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:973) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-05-04 14:04:50,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-04 14:04:51,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...