/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 01:58:49,276 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-04 01:58:49,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 01:58:49,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 01:58:49,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 01:58:49,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 01:58:49,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 01:58:49,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 01:58:49,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 01:58:49,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 01:58:49,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 01:58:49,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 01:58:49,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 01:58:49,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 01:58:49,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-05-04 01:58:49,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 01:58:49,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 01:58:49,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 01:58:49,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 01:58:49,398 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 01:58:49,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 01:58:49,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 01:58:49,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 01:58:49,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 01:58:49,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 01:58:49,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 01:58:49,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 01:58:49,400 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 01:58:49,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 01:58:49,401 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 01:58:49,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 01:58:49,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 01:58:49,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 01:58:49,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 01:58:49,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 01:58:49,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 01:58:49,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 01:58:49,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 01:58:49,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 01:58:49,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 01:58:49,403 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 01:58:49,403 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 01:58:49,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 01:58:49,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 01:58:49,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 01:58:49,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 01:58:49,404 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 01:58:49,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-04 01:58:49,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 01:58:49,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 01:58:49,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 01:58:49,655 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 01:58:49,665 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 01:58:49,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-05-04 01:58:49,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b10a8fb11/4cb3699658c445fb8a64bd896a2344de/FLAG2e9bdcfed [2023-05-04 01:58:50,255 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 01:58:50,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-05-04 01:58:50,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b10a8fb11/4cb3699658c445fb8a64bd896a2344de/FLAG2e9bdcfed [2023-05-04 01:58:50,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b10a8fb11/4cb3699658c445fb8a64bd896a2344de [2023-05-04 01:58:50,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 01:58:50,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 01:58:50,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 01:58:50,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 01:58:50,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 01:58:50,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:58:50" (1/1) ... [2023-05-04 01:58:50,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66438e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:50, skipping insertion in model container [2023-05-04 01:58:50,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 01:58:50" (1/1) ... [2023-05-04 01:58:50,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 01:58:50,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 01:58:51,173 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_longest-2.i[31164,31177] [2023-05-04 01:58:51,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 01:58:51,192 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 01:58:51,230 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_longest-2.i[31164,31177] [2023-05-04 01:58:51,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 01:58:51,260 INFO L208 MainTranslator]: Completed translation [2023-05-04 01:58:51,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51 WrapperNode [2023-05-04 01:58:51,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 01:58:51,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 01:58:51,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 01:58:51,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 01:58:51,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,315 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 187 [2023-05-04 01:58:51,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 01:58:51,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 01:58:51,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 01:58:51,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 01:58:51,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 01:58:51,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 01:58:51,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 01:58:51,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 01:58:51,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (1/1) ... [2023-05-04 01:58:51,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 01:58:51,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:58:51,416 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 01:58:51,418 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 01:58:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 01:58:51,459 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-05-04 01:58:51,460 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-05-04 01:58:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 01:58:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 01:58:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 01:58:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 01:58:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 01:58:51,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 01:58:51,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 01:58:51,465 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 01:58:51,606 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 01:58:51,608 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 01:58:51,899 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 01:58:52,175 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 01:58:52,176 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 01:58:52,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:58:52 BoogieIcfgContainer [2023-05-04 01:58:52,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 01:58:52,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 01:58:52,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 01:58:52,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 01:58:52,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 01:58:50" (1/3) ... [2023-05-04 01:58:52,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436e9918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:58:52, skipping insertion in model container [2023-05-04 01:58:52,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 01:58:51" (2/3) ... [2023-05-04 01:58:52,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436e9918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 01:58:52, skipping insertion in model container [2023-05-04 01:58:52,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 01:58:52" (3/3) ... [2023-05-04 01:58:52,197 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2023-05-04 01:58:52,224 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 01:58:52,232 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 01:58:52,242 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 01:58:52,242 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 01:58:52,340 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 01:58:52,395 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:58:52,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 01:58:52,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:58:52,401 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 01:58:52,402 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 01:58:52,436 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 01:58:52,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-05-04 01:58:52,491 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;@613cd58d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 01:58:52,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 01:58:52,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:58:52,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:58:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash 449071885, now seen corresponding path program 1 times [2023-05-04 01:58:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:58:52,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319456807] [2023-05-04 01:58:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:52,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:58:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:58:53,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:58:53,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319456807] [2023-05-04 01:58:53,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319456807] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:58:53,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:58:53,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 01:58:53,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764875610] [2023-05-04 01:58:53,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:58:53,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 01:58:53,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:58:53,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 01:58:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 01:58:53,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:53,201 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:58:53,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 01:58:53,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:53,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:53,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 01:58:53,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:58:53,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:58:53,257 INFO L85 PathProgramCache]: Analyzing trace with hash 700970053, now seen corresponding path program 1 times [2023-05-04 01:58:53,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:58:53,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396561052] [2023-05-04 01:58:53,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:53,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:58:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:53,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:58:53,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:58:53,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396561052] [2023-05-04 01:58:53,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396561052] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:58:53,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:58:53,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 01:58:53,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496651665] [2023-05-04 01:58:53,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:58:53,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 01:58:53,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:58:53,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 01:58:53,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-04 01:58:53,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:53,563 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:58:53,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 01:58:53,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:53,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:53,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:58:53,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 01:58:53,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:58:53,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:58:53,781 INFO L85 PathProgramCache]: Analyzing trace with hash -903111879, now seen corresponding path program 1 times [2023-05-04 01:58:53,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:58:53,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56652457] [2023-05-04 01:58:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:53,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:58:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:55,300 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:58:55,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:58:55,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56652457] [2023-05-04 01:58:55,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56652457] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:58:55,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884080040] [2023-05-04 01:58:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:55,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:58:55,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:58:55,303 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 01:58:55,304 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 01:58:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:58:55,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 60 conjunts are in the unsatisfiable core [2023-05-04 01:58:55,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:58:56,354 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-05-04 01:58:56,355 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 01:58:56,737 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:58:56,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:58:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:58:57,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884080040] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:58:57,199 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:58:57,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 10] total 39 [2023-05-04 01:58:57,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056411118] [2023-05-04 01:58:57,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:58:57,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-05-04 01:58:57,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:58:57,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-05-04 01:58:57,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1367, Unknown=7, NotChecked=0, Total=1560 [2023-05-04 01:58:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:57,202 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:58:57,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 10.58974358974359) internal successors, (413), 40 states have internal predecessors, (413), 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 01:58:57,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:57,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:58:57,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:58:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:58:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:58:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-05-04 01:58:59,779 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 01:58:59,961 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 01:58:59,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:58:59,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:58:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1697729337, now seen corresponding path program 1 times [2023-05-04 01:58:59,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:58:59,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531631226] [2023-05-04 01:58:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:58:59,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:00,174 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2023-05-04 01:59:00,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:00,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531631226] [2023-05-04 01:59:00,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531631226] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:59:00,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:59:00,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 01:59:00,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299687309] [2023-05-04 01:59:00,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:59:00,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 01:59:00,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:00,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 01:59:00,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 01:59:00,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:00,199 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:00,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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 01:59:00,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:00,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2023-05-04 01:59:00,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:00,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:00,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 01:59:00,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash 920795102, now seen corresponding path program 2 times [2023-05-04 01:59:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:00,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067141648] [2023-05-04 01:59:00,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:00,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:00,525 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-05-04 01:59:00,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:00,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067141648] [2023-05-04 01:59:00,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067141648] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:59:00,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:59:00,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 01:59:00,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659319458] [2023-05-04 01:59:00,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:59:00,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 01:59:00,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:00,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 01:59:00,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 01:59:00,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:00,528 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:00,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 01:59:00,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:00,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:00,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:00,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 01:59:00,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1475448435, now seen corresponding path program 1 times [2023-05-04 01:59:00,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:00,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214489126] [2023-05-04 01:59:00,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:00,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-05-04 01:59:00,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:00,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214489126] [2023-05-04 01:59:00,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214489126] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:59:00,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:59:00,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 01:59:00,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071314498] [2023-05-04 01:59:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:59:00,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 01:59:00,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:00,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 01:59:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 01:59:00,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:00,863 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:00,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.75) internal successors, (111), 5 states have internal predecessors, (111), 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 01:59:00,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:00,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:00,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:00,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:00,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:00,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:00,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 01:59:00,937 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:00,937 INFO L85 PathProgramCache]: Analyzing trace with hash -262376735, now seen corresponding path program 1 times [2023-05-04 01:59:00,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:00,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651588734] [2023-05-04 01:59:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:00,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 336 proven. 85 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-05-04 01:59:01,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:01,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651588734] [2023-05-04 01:59:01,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651588734] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:59:01,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884304318] [2023-05-04 01:59:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:01,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:01,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:59:01,352 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 01:59:01,382 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 01:59:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:01,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 9 conjunts are in the unsatisfiable core [2023-05-04 01:59:01,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:59:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 394 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-05-04 01:59:01,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:59:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 394 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-05-04 01:59:02,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884304318] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:59:02,116 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:59:02,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2023-05-04 01:59:02,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067158672] [2023-05-04 01:59:02,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:59:02,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-05-04 01:59:02,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:02,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-05-04 01:59:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-05-04 01:59:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:02,119 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:02,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 27.88888888888889) internal successors, (502), 18 states have internal predecessors, (502), 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 01:59:02,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:02,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:02,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:02,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:02,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:02,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:02,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:02,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-05-04 01:59:02,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:02,838 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1448626678, now seen corresponding path program 1 times [2023-05-04 01:59:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:02,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925614706] [2023-05-04 01:59:02,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:03,406 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 01:59:03,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:03,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925614706] [2023-05-04 01:59:03,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925614706] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 01:59:03,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 01:59:03,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 01:59:03,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156138093] [2023-05-04 01:59:03,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 01:59:03,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 01:59:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 01:59:03,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 01:59:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:03,412 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:03,412 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 01:59:03,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:03,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:03,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2023-05-04 01:59:03,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:03,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:03,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:03,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:03,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 01:59:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:03,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:03,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-05-04 01:59:03,838 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:03,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:03,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1087589, now seen corresponding path program 1 times [2023-05-04 01:59:03,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:03,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713429879] [2023-05-04 01:59:03,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:03,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:04,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:59:04,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:04,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713429879] [2023-05-04 01:59:04,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713429879] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:59:04,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336070200] [2023-05-04 01:59:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:04,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:04,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:59:04,413 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 01:59:04,473 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 01:59:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:04,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 61 conjunts are in the unsatisfiable core [2023-05-04 01:59:04,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:59:05,095 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 01:59:05,107 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-05-04 01:59:05,108 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 1 case distinctions, treesize of input 27 treesize of output 15 [2023-05-04 01:59:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:59:05,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:59:05,460 INFO L356 Elim1Store]: treesize reduction 58, result has 30.1 percent of original size [2023-05-04 01:59:05,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 62 [2023-05-04 01:59:05,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 66 treesize of output 62 [2023-05-04 01:59:05,515 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 45 treesize of output 41 [2023-05-04 01:59:05,536 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:05,536 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 25 treesize of output 27 [2023-05-04 01:59:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:59:05,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336070200] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:59:05,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:59:05,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 9] total 33 [2023-05-04 01:59:05,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591957243] [2023-05-04 01:59:05,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:59:05,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-05-04 01:59:05,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:05,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-05-04 01:59:05,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=977, Unknown=0, NotChecked=0, Total=1122 [2023-05-04 01:59:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:05,677 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:05,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 8.363636363636363) internal successors, (276), 34 states have internal predecessors, (276), 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 01:59:05,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:05,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:05,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2023-05-04 01:59:05,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:05,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:05,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:05,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:05,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:05,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:06,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-05-04 01:59:06,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-04 01:59:07,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:07,103 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1665894555, now seen corresponding path program 2 times [2023-05-04 01:59:07,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:07,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345625524] [2023-05-04 01:59:07,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:07,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:59:08,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:08,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345625524] [2023-05-04 01:59:08,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345625524] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:59:08,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439147828] [2023-05-04 01:59:08,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 01:59:08,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:59:08,048 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 01:59:08,049 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 01:59:08,236 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 01:59:08,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 01:59:08,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 61 conjunts are in the unsatisfiable core [2023-05-04 01:59:08,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:59:08,313 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 01:59:08,313 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 01:59:08,877 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-05-04 01:59:08,887 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-05-04 01:59:08,888 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 1 case distinctions, treesize of input 14 treesize of output 20 [2023-05-04 01:59:08,895 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 01:59:08,937 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 18 treesize of output 20 [2023-05-04 01:59:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:59:09,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:59:09,389 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse2 |c_~#top~0.offset|)))) (and (or (not .cse0) (forall ((v_ArrVal_834 (Array Int Int)) (|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_836 (Array Int Int))) (let ((.cse1 (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_ArrVal_834) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_836))) (or (not (= (select (select .cse1 |c_~#top~0.base|) |c_~#top~0.offset|) 0)) (not (= (select (select .cse1 |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset|) 1)))))) (or (forall ((v_ArrVal_832 (Array Int Int)) (|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_836 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_ArrVal_832) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_836))) (or (not (= 1 (select (select .cse3 |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset|))) (not (= 0 (select (select .cse3 |c_~#top~0.base|) |c_~#top~0.offset|)))))) .cse0)))) is different from false [2023-05-04 01:59:09,484 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= (select .cse2 |c_~#top~0.offset|) |c_thr1Thread1of1ForFork0_push_#t~mem8#1|))) (and (or (not .cse0) (forall ((v_ArrVal_834 (Array Int Int)) (|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_836 (Array Int Int))) (let ((.cse1 (store (store (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_~newTop~0#1|)) |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_ArrVal_834) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_836))) (or (not (= (select (select .cse1 |c_~#top~0.base|) |c_~#top~0.offset|) 0)) (not (= (select (select .cse1 |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset|) 1)))))) (or .cse0 (forall ((v_ArrVal_832 (Array Int Int)) (|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_836 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_ArrVal_832) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_836))) (or (not (= 1 (select (select .cse3 |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset|))) (not (= 0 (select (select .cse3 |c_~#top~0.base|) |c_~#top~0.offset|)))))))))) is different from false [2023-05-04 01:59:09,493 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:09,494 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 37 [2023-05-04 01:59:09,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 153 treesize of output 141 [2023-05-04 01:59:09,503 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:09,503 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 137 treesize of output 139 [2023-05-04 01:59:09,509 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:09,509 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 131 treesize of output 129 [2023-05-04 01:59:10,078 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:10,079 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 01:59:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 01:59:10,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439147828] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:59:10,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:59:10,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 16] total 48 [2023-05-04 01:59:10,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101900946] [2023-05-04 01:59:10,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:59:10,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-05-04 01:59:10,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:10,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-05-04 01:59:10,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1954, Unknown=4, NotChecked=182, Total=2352 [2023-05-04 01:59:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:10,097 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:10,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 4.791666666666667) internal successors, (230), 49 states have internal predecessors, (230), 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 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2023-05-04 01:59:10,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 01:59:11,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-05-04 01:59:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 01:59:11,393 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 01:59:11,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-05-04 01:59:11,581 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 01:59:11,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 01:59:11,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1994320246, now seen corresponding path program 2 times [2023-05-04 01:59:11,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 01:59:11,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543047640] [2023-05-04 01:59:11,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 01:59:11,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 01:59:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 01:59:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 01:59:12,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 01:59:12,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543047640] [2023-05-04 01:59:12,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543047640] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 01:59:12,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577796499] [2023-05-04 01:59:12,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 01:59:12,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 01:59:12,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 01:59:12,654 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 01:59:12,674 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 01:59:12,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 01:59:12,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 01:59:12,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 63 conjunts are in the unsatisfiable core [2023-05-04 01:59:12,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 01:59:13,632 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 01:59:13,633 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 01:59:13,651 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 01:59:13,652 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 01:59:13,657 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 01:59:13,668 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 01:59:13,695 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 01:59:13,714 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 0 case distinctions, treesize of input 23 treesize of output 16 [2023-05-04 01:59:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 01:59:13,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 01:59:28,354 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-05-04 01:59:28,355 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 01:59:28,359 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:28,359 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 01:59:28,366 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:28,366 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 01:59:28,372 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 01:59:28,373 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 01:59:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 60 refuted. 4 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 01:59:32,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577796499] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 01:59:32,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 01:59:32,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 12] total 40 [2023-05-04 01:59:32,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296818193] [2023-05-04 01:59:32,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 01:59:32,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-05-04 01:59:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 01:59:32,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-05-04 01:59:32,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1439, Unknown=15, NotChecked=0, Total=1640 [2023-05-04 01:59:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 01:59:32,878 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 01:59:32,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 10.775) internal successors, (431), 41 states have internal predecessors, (431), 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 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 01:59:32,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:00:43,624 WARN L233 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 46 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:00:57,421 WARN L233 SmtUtils]: Spent 13.77s on a formula simplification. DAG size of input: 36 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:01:16,160 WARN L233 SmtUtils]: Spent 16.71s on a formula simplification. DAG size of input: 37 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:02:13,423 WARN L233 SmtUtils]: Spent 19.34s on a formula simplification. DAG size of input: 37 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:02:32,177 WARN L233 SmtUtils]: Spent 18.72s on a formula simplification. DAG size of input: 38 DAG size of output: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:02:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 02:02:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-05-04 02:02:32,442 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 02:02:32,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:02:32,639 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:02:32,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:02:32,639 INFO L85 PathProgramCache]: Analyzing trace with hash -852268487, now seen corresponding path program 2 times [2023-05-04 02:02:32,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:02:32,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783436047] [2023-05-04 02:02:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:02:32,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:02:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:02:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:02:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:02:33,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783436047] [2023-05-04 02:02:33,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783436047] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:02:33,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22128424] [2023-05-04 02:02:33,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 02:02:33,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:02:33,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:02:33,526 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 02:02:33,527 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 02:02:33,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 02:02:33,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:02:33,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 68 conjunts are in the unsatisfiable core [2023-05-04 02:02:33,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:02:33,789 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 02:02:33,790 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 02:02:34,808 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 02:02:34,809 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 02:02:34,834 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 02:02:34,835 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 02:02:34,844 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 02:02:34,860 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 02:02:34,887 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 02:02:34,919 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:02:34,922 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:02:34,923 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 41 treesize of output 34 [2023-05-04 02:02:34,951 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 59 treesize of output 37 [2023-05-04 02:02:34,958 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:02:34,960 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 02:02:35,060 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-05-04 02:02:35,061 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 30 treesize of output 37 [2023-05-04 02:02:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:02:35,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:02:35,349 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1053 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1053) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-05-04 02:02:37,382 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 ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_1049 (Array Int Int)) (v_ArrVal_1053 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_ArrVal_1049) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1053) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0) (or (forall ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_1053 (Array Int Int)) (v_ArrVal_1052 (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|)) |thr1Thread1of1ForFork0_push_~#casret~0#1.base| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_1052) |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1053) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0))))) is different from false [2023-05-04 02:02:37,416 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 ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_1049 (Array Int Int)) (v_ArrVal_1053 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_ArrVal_1049) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1053) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (forall ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_1053 (Array Int Int)) (v_ArrVal_1052 (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|)) |thr1Thread1of1ForFork0_push_~#casret~0#1.base| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_1052) |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1053) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0))))) is different from false [2023-05-04 02:02:37,437 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-05-04 02:02:37,438 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 02:02:37,453 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:02:37,454 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 02:02:37,465 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:02:37,466 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 02:02:37,472 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 02:02:37,482 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:02:37,483 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 02:02:37,503 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 02:02:38,250 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:02:38,250 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 02:02:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2023-05-04 02:02:38,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22128424] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:02:38,262 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:02:38,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 15] total 47 [2023-05-04 02:02:38,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675496010] [2023-05-04 02:02:38,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:02:38,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-05-04 02:02:38,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:02:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-05-04 02:02:38,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1779, Unknown=3, NotChecked=264, Total=2256 [2023-05-04 02:02:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:02:38,264 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:02:38,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 7.595744680851064) internal successors, (357), 48 states have internal predecessors, (357), 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 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2023-05-04 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 02:02:38,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:02:38,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2023-05-04 02:02:38,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 02:02:38,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2023-05-04 02:02:38,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:03:19,346 WARN L233 SmtUtils]: Spent 40.24s on a formula simplification. DAG size of input: 83 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:04:01,853 WARN L233 SmtUtils]: Spent 40.47s on a formula simplification. DAG size of input: 80 DAG size of output: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:04:03,864 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 ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_1049 (Array Int Int)) (v_ArrVal_1053 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#casret~0#1.base| v_ArrVal_1049) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1053) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0) (= c_~next_alloc_idx~0 3) (= |c_~#top~0.offset| 0) (or (forall ((|thr1Thread1of1ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_1053 (Array Int Int)) (v_ArrVal_1052 (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|)) |thr1Thread1of1ForFork0_push_~#casret~0#1.base| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_1052) |thr1Thread1of1ForFork0_push_~#casret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| 1)) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_1053) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0)) (not (= 3 |c_ULTIMATE.start_main_~#t~0#1.base|)) (not (= |c_thr1Thread1of1ForFork0_push_~newTop~0#1| 0)) (or (not (= |c_~#top~0.base| |c_thr1Thread1of1ForFork0_push_~#casret~0#1.base|)) (= |c_thr1Thread1of1ForFork0_push_~#casret~0#1.offset| |c_~#top~0.offset|)) (= 3 |c_~#top~0.base|) .cse0))) is different from false [2023-05-04 02:04:32,268 WARN L233 SmtUtils]: Spent 27.39s on a formula simplification. DAG size of input: 62 DAG size of output: 45 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:04:48,628 WARN L233 SmtUtils]: Spent 8.13s 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 02:05:26,801 WARN L233 SmtUtils]: Spent 33.15s on a formula simplification. DAG size of input: 60 DAG size of output: 39 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:05:53,948 WARN L233 SmtUtils]: Spent 19.09s on a formula simplification. DAG size of input: 55 DAG size of output: 34 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:07:07,852 WARN L233 SmtUtils]: Spent 44.39s on a formula simplification. DAG size of input: 50 DAG size of output: 35 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 02:07:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-05-04 02:07:45,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 02:07:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-05-04 02:07:45,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-05-04 02:07:45,933 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 02:07:46,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:07:46,112 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:07:46,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:07:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1987892487, now seen corresponding path program 3 times [2023-05-04 02:07:46,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:07:46,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801257688] [2023-05-04 02:07:46,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:07:46,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:07:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:07:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:07:47,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:07:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801257688] [2023-05-04 02:07:47,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801257688] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:07:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017023779] [2023-05-04 02:07:47,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 02:07:47,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:07:47,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:07:47,590 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 02:07:47,591 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 02:07:47,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-05-04 02:07:47,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:07:47,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 68 conjunts are in the unsatisfiable core [2023-05-04 02:07:47,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:07:47,882 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-05-04 02:07:47,883 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 02:07:49,434 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-05-04 02:07:49,434 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 02:07:49,481 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2023-05-04 02:07:49,481 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 02:07:49,490 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 02:07:49,526 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 02:07:49,578 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 66 treesize of output 83 [2023-05-04 02:07:49,652 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 35 treesize of output 19 [2023-05-04 02:07:49,813 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:07:49,815 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 12 treesize of output 10 [2023-05-04 02:07:50,119 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-05-04 02:07:50,119 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 118 treesize of output 121 [2023-05-04 02:07:50,123 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:07:50,125 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 93 treesize of output 89 [2023-05-04 02:07:50,433 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:07:50,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:06,787 INFO L356 Elim1Store]: treesize reduction 13, result has 69.0 percent of original size [2023-05-04 02:08:06,788 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 02:08:06,793 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:08:06,793 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 02:08:06,802 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:08:06,803 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 212 treesize of output 210 [2023-05-04 02:08:06,809 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 179 treesize of output 167 [2023-05-04 02:08:06,817 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:08:06,817 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 174 treesize of output 176 [2023-05-04 02:08:06,836 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 02:08:09,670 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:08:09,670 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 02:08:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:09,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017023779] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:09,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:09,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 15] total 50 [2023-05-04 02:08:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136309029] [2023-05-04 02:08:09,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:09,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-05-04 02:08:09,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-05-04 02:08:09,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=2264, Unknown=73, NotChecked=0, Total=2550 [2023-05-04 02:08:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:09,687 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:09,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 7.96) internal successors, (398), 51 states have internal predecessors, (398), 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 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2023-05-04 02:08:09,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-05-04 02:08:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-05-04 02:08:20,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 02:08:20,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-05-04 02:08:20,289 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,SelfDestructingSolverStorable12 [2023-05-04 02:08:20,294 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1] [2023-05-04 02:08:20,295 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2023-05-04 02:08:20,297 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:20,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 02:08:20,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:20,308 INFO L229 MonitoredProcess]: Starting monitored process 10 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 02:08:20,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2023-05-04 02:08:20,315 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 02:08:20,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 02:08:20,320 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;@613cd58d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:20,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 02:08:20,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2125982159, now seen corresponding path program 1 times [2023-05-04 02:08:20,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:20,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714684688] [2023-05-04 02:08:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:20,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:20,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:20,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714684688] [2023-05-04 02:08:20,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714684688] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:20,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:20,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 02:08:20,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971609136] [2023-05-04 02:08:20,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:20,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 02:08:20,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:20,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 02:08:20,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 02:08:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,435 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:20,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 02:08:20,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-05-04 02:08:20,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:20,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:20,536 INFO L85 PathProgramCache]: Analyzing trace with hash 773643454, now seen corresponding path program 1 times [2023-05-04 02:08:20,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:20,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364893731] [2023-05-04 02:08:20,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:20,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:20,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364893731] [2023-05-04 02:08:20,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364893731] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:20,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:20,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 02:08:20,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648666808] [2023-05-04 02:08:20,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:20,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 02:08:20,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:20,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 02:08:20,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 02:08:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,609 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:20,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 02:08:20,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:20,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-05-04 02:08:20,627 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:20,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash -880134522, now seen corresponding path program 1 times [2023-05-04 02:08:20,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:20,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909305702] [2023-05-04 02:08:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:20,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:20,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:20,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:20,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909305702] [2023-05-04 02:08:20,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909305702] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:20,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:20,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 02:08:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473566962] [2023-05-04 02:08:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:20,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 02:08:20,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 02:08:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-04 02:08:20,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,686 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:20,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 02:08:20,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:20,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:20,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-05-04 02:08:20,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:20,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash -34876815, now seen corresponding path program 1 times [2023-05-04 02:08:20,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:20,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482111175] [2023-05-04 02:08:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:08:20,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 02:08:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:08:20,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 02:08:20,805 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 02:08:20,806 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 02:08:20,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-05-04 02:08:20,807 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-05-04 02:08:20,807 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2023-05-04 02:08:20,808 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 02:08:20,808 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-05-04 02:08:20,843 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 02:08:20,848 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:20,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 02:08:20,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:20,849 INFO L229 MonitoredProcess]: Starting monitored process 11 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 02:08:20,854 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 02:08:20,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 02:08:20,858 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;@613cd58d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:20,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 02:08:20,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2023-05-04 02:08:20,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:20,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:20,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1999439960, now seen corresponding path program 1 times [2023-05-04 02:08:20,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:20,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939372626] [2023-05-04 02:08:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:20,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 02:08:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:20,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939372626] [2023-05-04 02:08:20,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939372626] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:20,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:20,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 02:08:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978628372] [2023-05-04 02:08:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:20,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 02:08:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:20,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 02:08:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 02:08:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:20,953 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:20,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 02:08:20,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:21,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-05-04 02:08:21,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:21,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1279115791, now seen corresponding path program 1 times [2023-05-04 02:08:21,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:21,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377475097] [2023-05-04 02:08:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:21,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 02:08:21,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:21,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377475097] [2023-05-04 02:08:21,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377475097] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:21,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:21,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 02:08:21,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307590113] [2023-05-04 02:08:21,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:21,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 02:08:21,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:21,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 02:08:21,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-05-04 02:08:21,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:21,121 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:21,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 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 02:08:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:21,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:21,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-05-04 02:08:21,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:21,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash -75997380, now seen corresponding path program 1 times [2023-05-04 02:08:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:21,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918075412] [2023-05-04 02:08:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:21,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:21,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918075412] [2023-05-04 02:08:21,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918075412] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:21,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264693910] [2023-05-04 02:08:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:21,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:21,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:21,521 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:21,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-04 02:08:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:21,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 02:08:21,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:21,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:08:21,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264693910] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:21,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:08:21,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 11 [2023-05-04 02:08:21,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633240792] [2023-05-04 02:08:21,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:21,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 02:08:21,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 02:08:21,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-05-04 02:08:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:21,751 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:21,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 02:08:21,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:21,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:21,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:21,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:22,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:22,006 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:22,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:22,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1581459424, now seen corresponding path program 1 times [2023-05-04 02:08:22,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:22,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119989083] [2023-05-04 02:08:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:22,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:22,696 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:22,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:22,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119989083] [2023-05-04 02:08:22,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119989083] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:22,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829052180] [2023-05-04 02:08:22,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:22,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:22,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:22,706 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:22,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-05-04 02:08:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:22,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 58 conjunts are in the unsatisfiable core [2023-05-04 02:08:22,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:23,510 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-05-04 02:08:23,510 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 1 case distinctions, treesize of input 27 treesize of output 15 [2023-05-04 02:08:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:23,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:24,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829052180] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:24,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:24,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 10] total 38 [2023-05-04 02:08:24,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365079239] [2023-05-04 02:08:24,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:24,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-05-04 02:08:24,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-05-04 02:08:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1231, Unknown=4, NotChecked=0, Total=1406 [2023-05-04 02:08:24,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:24,436 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:24,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 9.342105263157896) internal successors, (355), 38 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 02:08:24,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:24,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:24,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:24,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 02:08:25,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-05-04 02:08:25,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-05-04 02:08:25,442 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1104663833, now seen corresponding path program 1 times [2023-05-04 02:08:25,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:25,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511917472] [2023-05-04 02:08:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:25,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:25,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:25,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511917472] [2023-05-04 02:08:25,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511917472] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:25,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911606350] [2023-05-04 02:08:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:25,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:25,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:25,507 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:25,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-05-04 02:08:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:25,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 02:08:25,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:25,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:25,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911606350] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:25,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:25,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-05-04 02:08:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156618041] [2023-05-04 02:08:25,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:25,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 02:08:25,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 02:08:25,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-05-04 02:08:25,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:25,989 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:25,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 45.714285714285715) internal successors, (320), 7 states have internal predecessors, (320), 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 02:08:25,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:25,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:25,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:25,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 02:08:25,990 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 02:08:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:26,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-05-04 02:08:26,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-05-04 02:08:26,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:26,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:26,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1021879414, now seen corresponding path program 1 times [2023-05-04 02:08:26,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:26,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980293541] [2023-05-04 02:08:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:26,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 02:08:26,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:26,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980293541] [2023-05-04 02:08:26,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980293541] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:26,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:26,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 02:08:26,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27991234] [2023-05-04 02:08:26,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:26,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:26,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:26,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:26,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:26,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:26,468 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:26,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 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 02:08:26,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:26,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:26,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:26,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 02:08:26,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:26,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 02:08:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:26,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:26,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-05-04 02:08:26,548 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:26,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1050508565, now seen corresponding path program 1 times [2023-05-04 02:08:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:26,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326455544] [2023-05-04 02:08:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:26,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:26,835 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:26,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:26,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326455544] [2023-05-04 02:08:26,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326455544] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:26,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106018103] [2023-05-04 02:08:26,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:26,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:26,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:26,838 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:26,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-05-04 02:08:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:27,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 7 conjunts are in the unsatisfiable core [2023-05-04 02:08:27,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:08:27,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:08:27,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106018103] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:27,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:08:27,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2023-05-04 02:08:27,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937206240] [2023-05-04 02:08:27,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:27,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-04 02:08:27,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:27,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-04 02:08:27,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-05-04 02:08:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:27,271 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:27,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.25) internal successors, (154), 8 states have internal predecessors, (154), 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 02:08:27,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:27,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:27,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:27,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 02:08:27,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:27,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:27,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 02:08:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:27,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:27,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:27,666 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 02:08:27,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:27,667 INFO L85 PathProgramCache]: Analyzing trace with hash -602217503, now seen corresponding path program 1 times [2023-05-04 02:08:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:27,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173786831] [2023-05-04 02:08:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:27,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:08:27,707 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 02:08:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 02:08:27,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 02:08:27,778 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 02:08:27,778 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 02:08:27,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-05-04 02:08:27,780 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-05-04 02:08:27,780 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2023-05-04 02:08:27,780 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 02:08:27,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-05-04 02:08:27,830 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 02:08:27,832 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:27,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 02:08:27,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:27,849 INFO L229 MonitoredProcess]: Starting monitored process 16 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 02:08:27,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2023-05-04 02:08:27,885 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 02:08:27,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2023-05-04 02:08:27,893 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;@613cd58d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 02:08:27,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 02:08:28,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:28,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:28,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2028777715, now seen corresponding path program 1 times [2023-05-04 02:08:28,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:28,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521786806] [2023-05-04 02:08:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:28,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 02:08:28,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:28,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521786806] [2023-05-04 02:08:28,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521786806] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:28,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:28,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 02:08:28,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377216103] [2023-05-04 02:08:28,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:28,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 02:08:28,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:28,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 02:08:28,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 02:08:28,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:28,144 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:28,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 02:08:28,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:28,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-05-04 02:08:28,809 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:28,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:28,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1256535903, now seen corresponding path program 1 times [2023-05-04 02:08:28,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:28,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559754357] [2023-05-04 02:08:28,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:28,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 02:08:29,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:29,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559754357] [2023-05-04 02:08:29,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559754357] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:29,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113448961] [2023-05-04 02:08:29,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:29,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:29,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:29,059 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:29,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-05-04 02:08:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:29,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 2 conjunts are in the unsatisfiable core [2023-05-04 02:08:29,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 02:08:29,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:08:29,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113448961] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:29,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:08:29,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-05-04 02:08:29,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567246506] [2023-05-04 02:08:29,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:29,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 02:08:29,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:29,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 02:08:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-05-04 02:08:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:29,443 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:29,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 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 02:08:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:29,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:29,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:29,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-05-04 02:08:29,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1152670966, now seen corresponding path program 1 times [2023-05-04 02:08:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:29,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889521424] [2023-05-04 02:08:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:29,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 02:08:29,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:29,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889521424] [2023-05-04 02:08:29,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889521424] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:29,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477704025] [2023-05-04 02:08:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:29,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:29,990 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:30,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-05-04 02:08:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:30,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 02:08:30,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 02:08:30,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:08:30,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477704025] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:30,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:08:30,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 11 [2023-05-04 02:08:30,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904084085] [2023-05-04 02:08:30,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:30,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 02:08:30,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:30,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 02:08:30,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-05-04 02:08:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:30,442 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:30,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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 02:08:30,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:30,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:30,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:30,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:30,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:30,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:30,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-05-04 02:08:30,729 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:30,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:30,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1575909402, now seen corresponding path program 1 times [2023-05-04 02:08:30,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:30,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000429585] [2023-05-04 02:08:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:30,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 02:08:30,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:30,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000429585] [2023-05-04 02:08:30,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000429585] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:30,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986418206] [2023-05-04 02:08:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:30,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:30,877 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:30,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-05-04 02:08:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:31,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 3 conjunts are in the unsatisfiable core [2023-05-04 02:08:31,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 02:08:31,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 02:08:31,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986418206] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:31,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:31,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-05-04 02:08:31,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835834727] [2023-05-04 02:08:31,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:31,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 02:08:31,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:31,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 02:08:31,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-05-04 02:08:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:31,596 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:31,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 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 02:08:31,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:31,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:31,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:31,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:31,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:32,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-05-04 02:08:32,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:32,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:32,034 INFO L85 PathProgramCache]: Analyzing trace with hash -130766923, now seen corresponding path program 1 times [2023-05-04 02:08:32,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:32,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870079235] [2023-05-04 02:08:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:32,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-05-04 02:08:32,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:32,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870079235] [2023-05-04 02:08:32,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870079235] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:32,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:32,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 02:08:32,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71708026] [2023-05-04 02:08:32,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:32,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:32,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:32,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:32,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:32,371 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:32,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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 02:08:32,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:32,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:32,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:32,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:32,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:32,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-05-04 02:08:32,611 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:32,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:32,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1100683980, now seen corresponding path program 1 times [2023-05-04 02:08:32,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:32,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148450741] [2023-05-04 02:08:32,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:32,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:33,138 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-05-04 02:08:33,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:33,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148450741] [2023-05-04 02:08:33,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148450741] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:33,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:33,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 02:08:33,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411259362] [2023-05-04 02:08:33,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:33,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 02:08:33,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:33,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 02:08:33,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 02:08:33,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:33,141 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:33,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 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 02:08:33,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:33,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:33,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:33,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:33,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:33,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:33,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-05-04 02:08:33,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:33,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:33,376 INFO L85 PathProgramCache]: Analyzing trace with hash 424130317, now seen corresponding path program 1 times [2023-05-04 02:08:33,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:33,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57511020] [2023-05-04 02:08:33,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:33,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-05-04 02:08:33,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:33,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57511020] [2023-05-04 02:08:33,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57511020] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:33,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:33,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 02:08:33,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208560335] [2023-05-04 02:08:33,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:33,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 02:08:33,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:33,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 02:08:33,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 02:08:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:33,990 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:33,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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 02:08:33,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:33,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:33,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:33,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:33,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:33,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:33,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:34,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:34,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-05-04 02:08:34,237 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:34,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1520712098, now seen corresponding path program 1 times [2023-05-04 02:08:34,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:34,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960541909] [2023-05-04 02:08:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:34,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 67 proven. 14 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-05-04 02:08:34,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:34,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960541909] [2023-05-04 02:08:34,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960541909] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:34,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399123137] [2023-05-04 02:08:34,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:34,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:34,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:34,516 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:34,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-05-04 02:08:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:34,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 7 conjunts are in the unsatisfiable core [2023-05-04 02:08:34,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-05-04 02:08:35,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:08:35,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399123137] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:35,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:08:35,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2023-05-04 02:08:35,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343854315] [2023-05-04 02:08:35,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:35,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-05-04 02:08:35,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-05-04 02:08:35,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-05-04 02:08:35,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:35,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:35,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 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 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:35,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:35,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:35,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:35,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:35,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-05-04 02:08:35,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:35,566 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:35,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:35,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1081270874, now seen corresponding path program 1 times [2023-05-04 02:08:35,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:35,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125307797] [2023-05-04 02:08:35,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:35,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-05-04 02:08:35,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:35,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125307797] [2023-05-04 02:08:35,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125307797] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:35,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:35,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 02:08:35,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173031843] [2023-05-04 02:08:35,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:35,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 02:08:35,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:35,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 02:08:35,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 02:08:35,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:35,818 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:35,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.333333333333336) internal successors, (302), 6 states have internal predecessors, (302), 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 02:08:35,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:35,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:35,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:35,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:35,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:35,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:35,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:35,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:35,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-05-04 02:08:35,999 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:35,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:36,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1400124864, now seen corresponding path program 1 times [2023-05-04 02:08:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:36,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42798868] [2023-05-04 02:08:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:36,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-05-04 02:08:36,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:36,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42798868] [2023-05-04 02:08:36,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42798868] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:36,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:36,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 02:08:36,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729155543] [2023-05-04 02:08:36,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:36,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 02:08:36,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 02:08:36,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-05-04 02:08:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:36,280 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:36,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 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 02:08:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:36,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-05-04 02:08:36,471 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:36,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:36,472 INFO L85 PathProgramCache]: Analyzing trace with hash -444388495, now seen corresponding path program 1 times [2023-05-04 02:08:36,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:36,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625594150] [2023-05-04 02:08:36,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:36,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2023-05-04 02:08:36,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:36,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625594150] [2023-05-04 02:08:36,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625594150] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:08:36,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:08:36,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 02:08:36,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070560077] [2023-05-04 02:08:36,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:08:36,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:08:36,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:36,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:08:36,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:08:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:36,923 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:36,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 59.0) internal successors, (236), 5 states have internal predecessors, (236), 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 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:36,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:37,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-05-04 02:08:37,632 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:37,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash -381939909, now seen corresponding path program 1 times [2023-05-04 02:08:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:37,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810723540] [2023-05-04 02:08:37,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 154 proven. 187 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 02:08:38,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:38,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810723540] [2023-05-04 02:08:38,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810723540] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:38,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015487617] [2023-05-04 02:08:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:38,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:38,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:38,008 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:38,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-05-04 02:08:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:38,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-04 02:08:38,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 154 proven. 187 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 02:08:38,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 154 proven. 187 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 02:08:39,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015487617] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:39,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:39,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2023-05-04 02:08:39,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146981350] [2023-05-04 02:08:39,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:39,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-05-04 02:08:39,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:39,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-05-04 02:08:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2023-05-04 02:08:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:39,214 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:39,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 46.588235294117645) internal successors, (792), 17 states have internal predecessors, (792), 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 02:08:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:39,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:39,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:08:39,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:39,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-05-04 02:08:39,908 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:39,909 INFO L85 PathProgramCache]: Analyzing trace with hash -589822287, now seen corresponding path program 2 times [2023-05-04 02:08:39,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:39,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333649261] [2023-05-04 02:08:39,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:39,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2681 backedges. 499 proven. 2157 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 02:08:41,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:41,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333649261] [2023-05-04 02:08:41,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333649261] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:41,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492237740] [2023-05-04 02:08:41,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 02:08:41,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:41,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:41,321 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:41,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-05-04 02:08:42,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 02:08:42,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:08:42,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2999 conjuncts, 18 conjunts are in the unsatisfiable core [2023-05-04 02:08:42,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:08:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2681 backedges. 499 proven. 2157 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 02:08:42,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:08:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2681 backedges. 499 proven. 2157 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 02:08:43,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492237740] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:08:43,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:08:43,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2023-05-04 02:08:43,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071235926] [2023-05-04 02:08:43,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:08:43,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-05-04 02:08:43,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:08:43,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-05-04 02:08:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2023-05-04 02:08:43,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:43,972 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:08:43,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 45.729729729729726) internal successors, (1692), 37 states have internal predecessors, (1692), 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 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:08:43,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:08:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:08:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:08:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:08:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:08:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:08:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:08:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:08:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:08:45,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:08:45,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-05-04 02:08:45,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-05-04 02:08:45,573 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:08:45,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:08:45,574 INFO L85 PathProgramCache]: Analyzing trace with hash 849532189, now seen corresponding path program 3 times [2023-05-04 02:08:45,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:08:45,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848669589] [2023-05-04 02:08:45,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:08:45,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:08:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:08:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 14061 backedges. 1189 proven. 12847 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 02:08:52,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:08:52,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848669589] [2023-05-04 02:08:52,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848669589] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:08:52,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45856294] [2023-05-04 02:08:52,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 02:08:52,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:08:52,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:08:52,649 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:08:52,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-05-04 02:08:53,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-05-04 02:08:53,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:08:53,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 58 conjunts are in the unsatisfiable core [2023-05-04 02:08:53,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:09:00,582 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2023-05-04 02:09:00,583 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 23 [2023-05-04 02:09:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 14061 backedges. 850 proven. 0 refuted. 0 times theorem prover too weak. 13211 trivial. 0 not checked. [2023-05-04 02:09:00,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:09:00,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45856294] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:09:00,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:09:00,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [39] total 49 [2023-05-04 02:09:00,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509739418] [2023-05-04 02:09:00,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:09:00,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-05-04 02:09:00,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:09:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-05-04 02:09:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=776, Invalid=1576, Unknown=0, NotChecked=0, Total=2352 [2023-05-04 02:09:00,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:00,927 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:09:00,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 24.90909090909091) internal successors, (274), 12 states have internal predecessors, (274), 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 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:09:00,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:09:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:09:01,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:09:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:09:01,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-05-04 02:09:01,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-05-04 02:09:01,724 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:09:01,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:09:01,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2020760393, now seen corresponding path program 4 times [2023-05-04 02:09:01,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:09:01,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337807154] [2023-05-04 02:09:01,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:09:01,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:09:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:09:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 14367 backedges. 1477 proven. 12847 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-05-04 02:09:08,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:09:08,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337807154] [2023-05-04 02:09:08,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337807154] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:09:08,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838695958] [2023-05-04 02:09:08,319 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 02:09:08,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:09:08,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:09:08,321 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:09:08,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-05-04 02:09:09,666 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 02:09:09,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:09:09,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 5716 conjuncts, 33 conjunts are in the unsatisfiable core [2023-05-04 02:09:09,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:09:13,612 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 02:09:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 14367 backedges. 1803 proven. 14 refuted. 0 times theorem prover too weak. 12550 trivial. 0 not checked. [2023-05-04 02:09:13,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:09:13,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14367 backedges. 1798 proven. 0 refuted. 0 times theorem prover too weak. 12569 trivial. 0 not checked. [2023-05-04 02:09:13,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838695958] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-04 02:09:13,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-05-04 02:09:13,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [39, 6] total 44 [2023-05-04 02:09:13,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815511932] [2023-05-04 02:09:13,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:09:13,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 02:09:13,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:09:13,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 02:09:13,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=755, Invalid=1137, Unknown=0, NotChecked=0, Total=1892 [2023-05-04 02:09:13,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:13,758 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:09:13,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:09:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:09:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:14,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-05-04 02:09:14,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:09:14,585 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:09:14,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:09:14,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1121729870, now seen corresponding path program 1 times [2023-05-04 02:09:14,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:09:14,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722903861] [2023-05-04 02:09:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:09:14,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:09:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:09:20,297 INFO L134 CoverageAnalysis]: Checked inductivity of 15578 backedges. 674 proven. 252 refuted. 0 times theorem prover too weak. 14652 trivial. 0 not checked. [2023-05-04 02:09:20,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:09:20,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722903861] [2023-05-04 02:09:20,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722903861] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:09:20,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466163659] [2023-05-04 02:09:20,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:09:20,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:09:20,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:09:20,333 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:09:20,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-05-04 02:09:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:09:21,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 6435 conjuncts, 41 conjunts are in the unsatisfiable core [2023-05-04 02:09:21,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:09:31,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 02:09:31,179 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 02:09:31,298 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-05-04 02:09:31,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2023-05-04 02:09:31,302 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 02:09:31,306 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 02:09:31,329 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:09:31,329 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:09:31,330 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 5 [2023-05-04 02:09:31,332 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 02:09:31,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 7 [2023-05-04 02:09:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 15578 backedges. 1358 proven. 252 refuted. 0 times theorem prover too weak. 13968 trivial. 0 not checked. [2023-05-04 02:09:31,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:09:31,372 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 5 treesize of output 3 [2023-05-04 02:09:31,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 18 treesize of output 14 [2023-05-04 02:09:33,998 INFO L134 CoverageAnalysis]: Checked inductivity of 15578 backedges. 674 proven. 252 refuted. 0 times theorem prover too weak. 14652 trivial. 0 not checked. [2023-05-04 02:09:33,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466163659] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:09:33,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:09:33,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 19 [2023-05-04 02:09:33,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296123412] [2023-05-04 02:09:33,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:09:34,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-05-04 02:09:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:09:34,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-05-04 02:09:34,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=266, Unknown=2, NotChecked=0, Total=342 [2023-05-04 02:09:34,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:34,002 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:09:34,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 38.36842105263158) internal successors, (729), 19 states have internal predecessors, (729), 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 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:09:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:09:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:09:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:34,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:09:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:09:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:09:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:09:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:09:34,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-05-04 02:09:34,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:09:34,871 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:09:34,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:09:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash 617488826, now seen corresponding path program 2 times [2023-05-04 02:09:34,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:09:34,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509642797] [2023-05-04 02:09:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:09:34,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:09:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:09:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15578 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 15547 trivial. 0 not checked. [2023-05-04 02:09:44,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:09:44,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509642797] [2023-05-04 02:09:44,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509642797] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:09:44,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655481817] [2023-05-04 02:09:44,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 02:09:44,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:09:44,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:09:44,446 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:09:44,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-05-04 02:09:46,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 02:09:46,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 02:09:46,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 6435 conjuncts, 177 conjunts are in the unsatisfiable core [2023-05-04 02:09:46,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:10:04,833 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-05-04 02:10:04,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2023-05-04 02:10:04,849 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 02:10:04,863 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 02:10:04,909 INFO L173 IndexEqualityManager]: detected equality via solver [2023-05-04 02:10:04,910 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 5 [2023-05-04 02:10:04,918 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 02:10:05,078 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-05-04 02:10:05,078 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 1 case distinctions, treesize of input 14 treesize of output 20 [2023-05-04 02:10:05,096 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 02:10:05,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 11 [2023-05-04 02:10:05,990 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-05-04 02:10:05,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-05-04 02:10:05,997 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 02:10:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 15578 backedges. 0 proven. 15578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 02:10:06,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 02:10:06,824 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:10:06,824 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-05-04 02:10:06,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 25 [2023-05-04 02:10:06,829 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 02:10:07,316 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-05-04 02:10:07,317 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2023-05-04 02:10:07,355 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select (select |c_#memory_int| |c_~#top~0.base|) |c_~#top~0.offset|) |c_thr1Thread3of3ForFork0_push_~oldTop~0#1|))) (let ((.cse1 (not .cse0))) (and (or (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9508 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9508) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |c_~#top~0.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1))) .cse0) (or (not (= |c_thr1Thread3of3ForFork0_push_~newTop~0#1| 0)) (and (or (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9508 (Array Int Int)) (|thr1Thread3of3ForFork0_push_~#casret~0#1.base| Int) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |thr1Thread3of3ForFork0_push_~#casret~0#1.base| v_ArrVal_9508) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1))) .cse0) (or .cse1 (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9510 (Array Int Int)) (|thr1Thread3of3ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_9507 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9507) |thr1Thread3of3ForFork0_push_~#casret~0#1.base| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9510) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset| 1)) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1)))))) (or .cse1 (forall ((v_ArrVal_9512 (Array Int Int)) (v_arrayElimArr_31 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_arrayElimArr_31) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |c_~#top~0.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1) (not (= (select v_arrayElimArr_31 |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1)))))))) is different from false [2023-05-04 02:10:07,764 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 02:10:07,771 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 02:10:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 15578 backedges. 385 proven. 15118 refuted. 18 times theorem prover too weak. 0 trivial. 57 not checked. [2023-05-04 02:10:16,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655481817] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 02:10:16,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 02:10:16,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 61, 61] total 137 [2023-05-04 02:10:16,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143814475] [2023-05-04 02:10:16,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 02:10:16,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2023-05-04 02:10:16,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:10:16,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2023-05-04 02:10:16,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2862, Invalid=15439, Unknown=63, NotChecked=268, Total=18632 [2023-05-04 02:10:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:10:16,894 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:10:16,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 137 states have (on average 28.656934306569344) internal successors, (3926), 137 states have internal predecessors, (3926), 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 02:10:16,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:16,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:16,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:10:16,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:10:16,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:16,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:16,896 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:10:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:10:20,066 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse6 (select (select |c_#memory_int| |c_~#top~0.base|) |c_~#top~0.offset|))) (let ((.cse1 (= .cse6 |c_thr1Thread3of3ForFork0_push_~oldTop~0#1|))) (let ((.cse2 (not (= |c_thr1Thread3of3ForFork0_push_~newTop~0#1| 0))) (.cse0 (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9508 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9508) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |c_~#top~0.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1)))) (.cse5 (= .cse6 |c_thr1Thread3of3ForFork0_push_#t~mem8#1|)) (.cse3 (not .cse1)) (.cse4 (forall ((v_ArrVal_9512 (Array Int Int)) (v_arrayElimArr_31 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_arrayElimArr_31) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |c_~#top~0.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1) (not (= (select v_arrayElimArr_31 |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1)))))) (and (or .cse0 .cse1) .cse2 (or .cse2 (and (or (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9508 (Array Int Int)) (|thr1Thread3of3ForFork0_push_~#casret~0#1.base| Int) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |thr1Thread3of3ForFork0_push_~#casret~0#1.base| v_ArrVal_9508) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1))) .cse1) (or .cse3 (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9510 (Array Int Int)) (|thr1Thread3of3ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_9507 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9507) |thr1Thread3of3ForFork0_push_~#casret~0#1.base| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9510) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset| 1)) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1)))))) (= |c_~#top~0.offset| 0) (< |c_~#top~0.base| |c_~#m~0.base|) (or .cse4 (not .cse5)) (or .cse0 .cse5) (= c_~next_alloc_idx~0 9) (or .cse3 .cse4) (<= 5 |c_~#m~0.base|) (= 3 |c_~#top~0.base|))))) is different from false [2023-05-04 02:10:20,076 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (= (select (select |c_#memory_int| |c_~#top~0.base|) |c_~#top~0.offset|) |c_thr1Thread3of3ForFork0_push_~oldTop~0#1|))) (let ((.cse2 (not .cse0)) (.cse1 (< |c_~#top~0.base| |c_~#m~0.base|))) (and (or (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9508 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9508) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |c_~#top~0.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1))) .cse0) (or .cse1 (= (+ c_~next_alloc_idx~0 4) 0)) (or (not (= |c_thr1Thread3of3ForFork0_push_~newTop~0#1| 0)) (and (or (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9508 (Array Int Int)) (|thr1Thread3of3ForFork0_push_~#casret~0#1.base| Int) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |thr1Thread3of3ForFork0_push_~#casret~0#1.base| v_ArrVal_9508) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1))) .cse0) (or .cse2 (forall ((v_ArrVal_9512 (Array Int Int)) (v_ArrVal_9510 (Array Int Int)) (|thr1Thread3of3ForFork0_push_~#casret~0#1.base| Int) (v_ArrVal_9507 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9507) |thr1Thread3of3ForFork0_push_~#casret~0#1.base| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_9510) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset| 1)) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |thr1Thread3of3ForFork0_push_~#casret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1)))))) (or .cse1 (= (+ c_~next_alloc_idx~0 24) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 36) 0)) (or .cse1 (= 0 (+ c_~next_alloc_idx~0 48))) (or .cse1 (= (+ 56 c_~next_alloc_idx~0) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 32) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 20) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 12) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 60) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 68) 0)) (or .cse2 (forall ((v_ArrVal_9512 (Array Int Int)) (v_arrayElimArr_31 (Array Int Int)) (|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| Int)) (or (< |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| |c_~#m~0.base|) (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| v_arrayElimArr_31) |v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_~m#1.base_53| v_ArrVal_9512) |c_~#top~0.base|) |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1) (not (= (select v_arrayElimArr_31 |c_thr1Thread3of3ForFork0_push_~#casret~0#1.offset|) 1))))) (or .cse1 (= (+ c_~next_alloc_idx~0 8) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 52) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 16) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 28) 0)) (or .cse1 (= (+ c_~next_alloc_idx~0 40) 0)) (or (= (+ c_~next_alloc_idx~0 64) 0) .cse1) (or .cse1 (= (+ c_~next_alloc_idx~0 44) 0)) (or .cse1 (= c_~next_alloc_idx~0 0))))) is different from false [2023-05-04 02:10:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:10:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:10:23,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 02:10:23,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-05-04 02:10:24,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-05-04 02:10:24,097 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:10:24,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:10:24,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1273742180, now seen corresponding path program 1 times [2023-05-04 02:10:24,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:10:24,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385408286] [2023-05-04 02:10:24,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:10:24,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:10:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:10:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 15392 backedges. 51 proven. 12 refuted. 0 times theorem prover too weak. 15329 trivial. 0 not checked. [2023-05-04 02:10:26,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:10:26,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385408286] [2023-05-04 02:10:26,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385408286] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 02:10:26,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310539412] [2023-05-04 02:10:26,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:10:26,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 02:10:26,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 02:10:26,273 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 02:10:26,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-05-04 02:10:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:10:27,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 6520 conjuncts, 4 conjunts are in the unsatisfiable core [2023-05-04 02:10:27,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 02:10:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 15392 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 15331 trivial. 0 not checked. [2023-05-04 02:10:27,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 02:10:27,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310539412] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:10:27,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 02:10:27,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-05-04 02:10:27,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831647075] [2023-05-04 02:10:27,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:10:27,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:10:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:10:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:10:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-05-04 02:10:27,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:10:27,794 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:10:27,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:10:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:10:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:10:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:10:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 02:10:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:10:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 02:10:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:28,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-05-04 02:10:28,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-05-04 02:10:28,493 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 02:10:28,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 02:10:28,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2026131776, now seen corresponding path program 1 times [2023-05-04 02:10:28,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 02:10:28,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410693515] [2023-05-04 02:10:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 02:10:28,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 02:10:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 02:10:31,089 INFO L134 CoverageAnalysis]: Checked inductivity of 15392 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 14885 trivial. 0 not checked. [2023-05-04 02:10:31,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 02:10:31,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410693515] [2023-05-04 02:10:31,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410693515] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 02:10:31,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 02:10:31,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 02:10:31,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524658460] [2023-05-04 02:10:31,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 02:10:31,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 02:10:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 02:10:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 02:10:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-05-04 02:10:31,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 02:10:31,091 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 02:10:31,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 02:10:31,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 02:10:31,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-04 02:10:31,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.