/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stack_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 07:45:13,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 07:45:13,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 07:45:13,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-05-04 07:45:13,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 07:45:13,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 07:45:13,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 07:45:13,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 07:45:13,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 07:45:13,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 07:45:13,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 07:45:13,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 07:45:13,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 07:45:13,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 07:45:13,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 07:45:13,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 07:45:13,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-05-04 07:45:13,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 07:45:13,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 07:45:13,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 07:45:13,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 07:45:13,338 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 07:45:13,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 07:45:13,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 07:45:13,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 07:45:13,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 07:45:13,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 07:45:13,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 07:45:13,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 07:45:13,341 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 07:45:13,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 07:45:13,342 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 07:45:13,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 07:45:13,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 07:45:13,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 07:45:13,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 07:45:13,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 07:45:13,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 07:45:13,343 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 07:45:13,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 07:45:13,343 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 07:45:13,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 07:45:13,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 07:45:13,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 07:45:13,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 07:45:13,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 07:45:13,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 07:45:13,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 07:45:13,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 07:45:13,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 07:45:13,344 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 07:45:13,345 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 07:45:13,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 07:45:13,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 07:45:13,345 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 07:45:13,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 07:45:13,345 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 07:45:13,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-04 07:45:13,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 07:45:13,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 07:45:13,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 07:45:13,601 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 07:45:13,601 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 07:45:13,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-2.i [2023-05-04 07:45:13,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b047fe137/17a0716413ee4f73b784ad55719b1725/FLAGe1c78e61b [2023-05-04 07:45:14,209 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 07:45:14,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i [2023-05-04 07:45:14,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b047fe137/17a0716413ee4f73b784ad55719b1725/FLAGe1c78e61b [2023-05-04 07:45:14,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b047fe137/17a0716413ee4f73b784ad55719b1725 [2023-05-04 07:45:14,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 07:45:14,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 07:45:14,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 07:45:14,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 07:45:14,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 07:45:14,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 07:45:14" (1/1) ... [2023-05-04 07:45:14,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4474d69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:14, skipping insertion in model container [2023-05-04 07:45:14,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 07:45:14" (1/1) ... [2023-05-04 07:45:14,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 07:45:14,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 07:45:15,166 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/stack_longest-2.i[41530,41543] [2023-05-04 07:45:15,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 07:45:15,207 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 07:45:15,255 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/stack_longest-2.i[41530,41543] [2023-05-04 07:45:15,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 07:45:15,334 INFO L208 MainTranslator]: Completed translation [2023-05-04 07:45:15,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15 WrapperNode [2023-05-04 07:45:15,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 07:45:15,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 07:45:15,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 07:45:15,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 07:45:15,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,409 INFO L138 Inliner]: procedures = 277, calls = 40, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 150 [2023-05-04 07:45:15,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 07:45:15,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 07:45:15,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 07:45:15,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 07:45:15,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,456 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 07:45:15,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 07:45:15,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 07:45:15,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 07:45:15,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (1/1) ... [2023-05-04 07:45:15,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 07:45:15,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:15,498 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 07:45:15,521 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 07:45:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-05-04 07:45:15,539 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-05-04 07:45:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-05-04 07:45:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-05-04 07:45:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 07:45:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 07:45:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 07:45:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 07:45:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-05-04 07:45:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 07:45:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 07:45:15,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 07:45:15,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 07:45:15,542 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 07:45:15,740 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 07:45:15,742 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 07:45:15,964 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 07:45:15,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 07:45:15,975 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-04 07:45:15,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 07:45:15 BoogieIcfgContainer [2023-05-04 07:45:15,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 07:45:15,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 07:45:15,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 07:45:15,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 07:45:15,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 07:45:14" (1/3) ... [2023-05-04 07:45:15,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4f6b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 07:45:15, skipping insertion in model container [2023-05-04 07:45:15,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 07:45:15" (2/3) ... [2023-05-04 07:45:15,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4f6b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 07:45:15, skipping insertion in model container [2023-05-04 07:45:15,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 07:45:15" (3/3) ... [2023-05-04 07:45:15,991 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2023-05-04 07:45:15,999 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 07:45:16,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 07:45:16,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-05-04 07:45:16,020 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 07:45:16,151 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-04 07:45:16,191 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 07:45:16,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 07:45:16,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:16,196 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 07:45:16,197 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 07:45:16,224 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 07:45:16,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2023-05-04 07:45:16,259 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;@7138f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 07:45:16,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 07:45:16,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:16,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:16,484 INFO L85 PathProgramCache]: Analyzing trace with hash 91762984, now seen corresponding path program 1 times [2023-05-04 07:45:16,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:16,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421366666] [2023-05-04 07:45:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:16,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:16,806 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 07:45:16,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:16,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421366666] [2023-05-04 07:45:16,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421366666] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 07:45:16,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 07:45:16,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 07:45:16,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173874892] [2023-05-04 07:45:16,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 07:45:16,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 07:45:16,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:16,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 07:45:16,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 07:45:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:16,838 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:16,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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 07:45:16,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:16,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 07:45:16,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:16,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1006308451, now seen corresponding path program 1 times [2023-05-04 07:45:16,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:16,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324121910] [2023-05-04 07:45:16,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:16,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:17,080 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 07:45:17,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:17,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324121910] [2023-05-04 07:45:17,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324121910] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 07:45:17,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 07:45:17,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 07:45:17,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941144140] [2023-05-04 07:45:17,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 07:45:17,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 07:45:17,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:17,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 07:45:17,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 07:45:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,085 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:17,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 07:45:17,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 07:45:17,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1614477829, now seen corresponding path program 1 times [2023-05-04 07:45:17,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:17,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055064603] [2023-05-04 07:45:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:17,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:17,408 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 07:45:17,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:17,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055064603] [2023-05-04 07:45:17,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055064603] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 07:45:17,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 07:45:17,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 07:45:17,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220414872] [2023-05-04 07:45:17,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 07:45:17,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 07:45:17,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 07:45:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 07:45:17,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,413 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:17,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 07:45:17,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 07:45:17,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:17,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:17,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1254827326, now seen corresponding path program 1 times [2023-05-04 07:45:17,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:17,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824728895] [2023-05-04 07:45:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:17,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:17,563 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 07:45:17,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:17,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824728895] [2023-05-04 07:45:17,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824728895] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 07:45:17,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 07:45:17,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 07:45:17,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611218327] [2023-05-04 07:45:17,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 07:45:17,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 07:45:17,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:17,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 07:45:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 07:45:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,566 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:17,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 07:45:17,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 07:45:17,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:17,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash 699446509, now seen corresponding path program 1 times [2023-05-04 07:45:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:17,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415414362] [2023-05-04 07:45:17,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:17,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:17,758 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 07:45:17,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415414362] [2023-05-04 07:45:17,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415414362] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 07:45:17,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 07:45:17,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 07:45:17,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636875750] [2023-05-04 07:45:17,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 07:45:17,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 07:45:17,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:17,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 07:45:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-04 07:45:17,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,761 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:17,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 07:45:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:17,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 07:45:17,879 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:17,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:17,880 INFO L85 PathProgramCache]: Analyzing trace with hash -395012057, now seen corresponding path program 1 times [2023-05-04 07:45:17,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:17,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449058516] [2023-05-04 07:45:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-05-04 07:45:17,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:17,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449058516] [2023-05-04 07:45:17,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449058516] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 07:45:17,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 07:45:17,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 07:45:17,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819064158] [2023-05-04 07:45:17,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 07:45:18,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 07:45:18,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:18,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 07:45:18,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 07:45:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:18,002 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:18,002 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 07:45:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:18,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:18,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-05-04 07:45:18,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:18,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1163548993, now seen corresponding path program 1 times [2023-05-04 07:45:18,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854787589] [2023-05-04 07:45:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:18,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 07:45:18,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:18,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854787589] [2023-05-04 07:45:18,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854787589] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:45:18,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397794995] [2023-05-04 07:45:18,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:18,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:45:18,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:18,242 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 07:45:18,268 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 07:45:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:18,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 07:45:18,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:45:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-04 07:45:18,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:45:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-04 07:45:18,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397794995] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:45:18,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:45:18,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2023-05-04 07:45:18,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562447994] [2023-05-04 07:45:18,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:45:18,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-05-04 07:45:18,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:18,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-05-04 07:45:18,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-05-04 07:45:18,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:18,860 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:18,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 28.923076923076923) internal successors, (376), 13 states have internal predecessors, (376), 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 07:45:18,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:18,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:18,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:18,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-05-04 07:45:19,102 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 07:45:19,297 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,SelfDestructingSolverStorable6 [2023-05-04 07:45:19,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:19,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:19,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1555843433, now seen corresponding path program 1 times [2023-05-04 07:45:19,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:19,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550280529] [2023-05-04 07:45:19,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:19,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 110 proven. 10 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-05-04 07:45:19,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:19,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550280529] [2023-05-04 07:45:19,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550280529] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:45:19,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638447467] [2023-05-04 07:45:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:19,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:45:19,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:19,586 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 07:45:19,587 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 07:45:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:19,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 07:45:19,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:45:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 110 proven. 10 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-05-04 07:45:19,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:45:20,046 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 110 proven. 10 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-05-04 07:45:20,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638447467] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:45:20,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:45:20,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-05-04 07:45:20,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401699708] [2023-05-04 07:45:20,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:45:20,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 07:45:20,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:20,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 07:45:20,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-05-04 07:45:20,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:20,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:20,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 23.928571428571427) internal successors, (335), 14 states have internal predecessors, (335), 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 07:45:20,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:20,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:20,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-05-04 07:45:20,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:20,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:20,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 07:45:20,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:45:20,436 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:20,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:20,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1523695831, now seen corresponding path program 2 times [2023-05-04 07:45:20,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:20,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708287002] [2023-05-04 07:45:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:20,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:21,131 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 344 proven. 268 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-05-04 07:45:21,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:21,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708287002] [2023-05-04 07:45:21,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708287002] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:45:21,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449361581] [2023-05-04 07:45:21,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 07:45:21,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:45:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:21,136 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 07:45:21,153 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 07:45:21,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 07:45:21,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 07:45:21,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 12 conjunts are in the unsatisfiable core [2023-05-04 07:45:21,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:45:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 344 proven. 268 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-05-04 07:45:21,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:45:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 344 proven. 268 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-05-04 07:45:22,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449361581] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:45:22,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:45:22,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2023-05-04 07:45:22,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270590248] [2023-05-04 07:45:22,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:45:22,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-05-04 07:45:22,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:22,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-05-04 07:45:22,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2023-05-04 07:45:22,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:22,031 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:22,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 25.26923076923077) internal successors, (657), 26 states have internal predecessors, (657), 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 07:45:22,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:22,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:22,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:22,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:22,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:45:22,479 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 07:45:22,677 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 07:45:22,678 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:22,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1744274585, now seen corresponding path program 3 times [2023-05-04 07:45:22,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:22,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273427420] [2023-05-04 07:45:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:22,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 698 proven. 1426 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-05-04 07:45:24,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:24,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273427420] [2023-05-04 07:45:24,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273427420] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:45:24,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3133992] [2023-05-04 07:45:24,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 07:45:24,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:45:24,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:24,352 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 07:45:24,357 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 07:45:24,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-05-04 07:45:24,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 07:45:24,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 10 conjunts are in the unsatisfiable core [2023-05-04 07:45:24,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:45:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 1007 proven. 135 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2023-05-04 07:45:24,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:45:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 1007 proven. 135 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2023-05-04 07:45:25,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3133992] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:45:25,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:45:25,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 8, 8] total 37 [2023-05-04 07:45:25,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386493351] [2023-05-04 07:45:25,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:45:25,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-05-04 07:45:25,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:25,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-05-04 07:45:25,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1118, Unknown=0, NotChecked=0, Total=1332 [2023-05-04 07:45:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:25,258 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:25,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 25.756756756756758) internal successors, (953), 37 states have internal predecessors, (953), 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 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:45:25,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:26,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:45:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-05-04 07:45:26,821 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 07:45:27,013 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 07:45:27,013 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:27,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:27,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1580767302, now seen corresponding path program 4 times [2023-05-04 07:45:27,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:27,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559490849] [2023-05-04 07:45:27,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:27,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3497 backedges. 1457 proven. 1520 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-05-04 07:45:28,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:28,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559490849] [2023-05-04 07:45:28,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559490849] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:45:28,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591553141] [2023-05-04 07:45:28,825 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 07:45:28,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:45:28,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:28,829 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 07:45:28,852 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 07:45:30,172 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 07:45:30,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 07:45:30,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 26 conjunts are in the unsatisfiable core [2023-05-04 07:45:30,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:45:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3497 backedges. 1457 proven. 1520 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-05-04 07:45:30,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:45:31,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3497 backedges. 1457 proven. 1520 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-05-04 07:45:31,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591553141] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:45:31,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:45:31,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 54 [2023-05-04 07:45:31,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957858072] [2023-05-04 07:45:31,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:45:31,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-05-04 07:45:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:31,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-05-04 07:45:31,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=756, Invalid=2106, Unknown=0, NotChecked=0, Total=2862 [2023-05-04 07:45:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:31,978 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:31,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 21.944444444444443) internal successors, (1185), 54 states have internal predecessors, (1185), 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 07:45:31,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:31,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:31,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:31,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:31,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:31,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:31,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:31,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:31,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:45:31,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2023-05-04 07:45:31,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:33,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:45:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:45:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:45:33,458 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 07:45:33,653 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 07:45:33,653 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:33,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:33,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1929763864, now seen corresponding path program 5 times [2023-05-04 07:45:33,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:33,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309794078] [2023-05-04 07:45:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:45:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11353 backedges. 3165 proven. 7663 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2023-05-04 07:45:39,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:45:39,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309794078] [2023-05-04 07:45:39,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309794078] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:45:39,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626634318] [2023-05-04 07:45:39,371 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 07:45:39,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:45:39,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:45:39,373 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 07:45:39,374 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 07:45:41,264 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2023-05-04 07:45:41,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 07:45:41,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 52 conjunts are in the unsatisfiable core [2023-05-04 07:45:41,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:45:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 11353 backedges. 3165 proven. 7663 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2023-05-04 07:45:42,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:45:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 11353 backedges. 3165 proven. 7663 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2023-05-04 07:45:45,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626634318] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:45:45,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:45:45,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 106 [2023-05-04 07:45:45,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013788062] [2023-05-04 07:45:45,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:45:45,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2023-05-04 07:45:45,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:45:45,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2023-05-04 07:45:45,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2862, Invalid=8268, Unknown=0, NotChecked=0, Total=11130 [2023-05-04 07:45:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:45,823 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:45:45,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 22.235849056603772) internal successors, (2357), 106 states have internal predecessors, (2357), 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 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:45:45,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:45:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:45:50,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2023-05-04 07:45:50,561 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 07:45:50,755 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 07:45:50,755 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:45:50,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:45:50,756 INFO L85 PathProgramCache]: Analyzing trace with hash 261040984, now seen corresponding path program 6 times [2023-05-04 07:45:50,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:45:50,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72549646] [2023-05-04 07:45:50,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:45:50,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:45:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:46:12,268 INFO L134 CoverageAnalysis]: Checked inductivity of 39238 backedges. 6337 proven. 32376 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2023-05-04 07:46:12,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:46:12,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72549646] [2023-05-04 07:46:12,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72549646] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:46:12,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327519825] [2023-05-04 07:46:12,269 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-04 07:46:12,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:46:12,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:46:12,271 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 07:46:12,292 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 07:46:13,850 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2023-05-04 07:46:13,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 07:46:13,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 16 conjunts are in the unsatisfiable core [2023-05-04 07:46:13,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:46:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 39238 backedges. 8172 proven. 690 refuted. 0 times theorem prover too weak. 30376 trivial. 0 not checked. [2023-05-04 07:46:14,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:46:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 39238 backedges. 8172 proven. 690 refuted. 0 times theorem prover too weak. 30376 trivial. 0 not checked. [2023-05-04 07:46:15,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327519825] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:46:15,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:46:15,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 14, 14] total 129 [2023-05-04 07:46:15,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519314933] [2023-05-04 07:46:15,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:46:15,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2023-05-04 07:46:15,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:46:15,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2023-05-04 07:46:15,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2968, Invalid=13544, Unknown=0, NotChecked=0, Total=16512 [2023-05-04 07:46:15,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:46:15,624 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:46:15,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 129 states have (on average 22.51937984496124) internal successors, (2905), 129 states have internal predecessors, (2905), 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 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2023-05-04 07:46:15,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:46:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2023-05-04 07:46:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2023-05-04 07:46:31,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 07:46:31,275 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 07:46:31,275 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:46:31,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:46:31,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1815145468, now seen corresponding path program 7 times [2023-05-04 07:46:31,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:46:31,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374613911] [2023-05-04 07:46:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:46:31,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:46:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:46:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 48221 backedges. 12881 proven. 32810 refuted. 0 times theorem prover too weak. 2530 trivial. 0 not checked. [2023-05-04 07:46:55,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:46:55,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374613911] [2023-05-04 07:46:55,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374613911] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:46:55,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465663532] [2023-05-04 07:46:55,868 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-04 07:46:55,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:46:55,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:46:55,873 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 07:46:55,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-04 07:46:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:46:56,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 5187 conjuncts, 106 conjunts are in the unsatisfiable core [2023-05-04 07:46:56,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:46:58,982 INFO L134 CoverageAnalysis]: Checked inductivity of 48221 backedges. 12881 proven. 32810 refuted. 0 times theorem prover too weak. 2530 trivial. 0 not checked. [2023-05-04 07:46:58,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:47:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 48221 backedges. 12881 proven. 32810 refuted. 0 times theorem prover too weak. 2530 trivial. 0 not checked. [2023-05-04 07:47:08,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465663532] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:47:08,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:47:08,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 214 [2023-05-04 07:47:08,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088412973] [2023-05-04 07:47:08,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:47:08,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 214 states [2023-05-04 07:47:08,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:47:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 214 interpolants. [2023-05-04 07:47:08,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11556, Invalid=34026, Unknown=0, NotChecked=0, Total=45582 [2023-05-04 07:47:08,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:47:08,163 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:47:08,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 214 states, 214 states have (on average 21.425233644859812) internal successors, (4585), 214 states have internal predecessors, (4585), 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 07:47:08,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:47:08,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:08,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:08,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:08,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:47:08,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:08,166 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:47:08,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:47:08,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:47:08,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:47:08,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:47:08,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2023-05-04 07:47:08,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 317 states. [2023-05-04 07:47:08,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:47:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2023-05-04 07:47:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2023-05-04 07:47:30,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2023-05-04 07:47:30,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-04 07:47:30,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-05-04 07:47:30,624 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:47:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:47:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash 119682214, now seen corresponding path program 8 times [2023-05-04 07:47:30,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:47:30,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307739746] [2023-05-04 07:47:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:47:30,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:47:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 07:49:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 167071 backedges. 26287 proven. 138243 refuted. 0 times theorem prover too weak. 2541 trivial. 0 not checked. [2023-05-04 07:49:52,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 07:49:52,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307739746] [2023-05-04 07:49:52,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307739746] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 07:49:52,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440289577] [2023-05-04 07:49:52,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 07:49:52,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 07:49:52,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 07:49:52,392 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 07:49:52,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-04 07:49:53,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 07:49:53,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 07:49:53,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 9460 conjuncts, 212 conjunts are in the unsatisfiable core [2023-05-04 07:49:53,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 07:49:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 167071 backedges. 26287 proven. 138243 refuted. 0 times theorem prover too weak. 2541 trivial. 0 not checked. [2023-05-04 07:49:58,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 07:50:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 167071 backedges. 26287 proven. 138243 refuted. 0 times theorem prover too weak. 2541 trivial. 0 not checked. [2023-05-04 07:50:29,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440289577] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 07:50:29,175 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 07:50:29,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 213, 213] total 426 [2023-05-04 07:50:29,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674019268] [2023-05-04 07:50:29,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 07:50:29,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 426 states [2023-05-04 07:50:29,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 07:50:29,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 426 interpolants. [2023-05-04 07:50:29,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45582, Invalid=135468, Unknown=0, NotChecked=0, Total=181050 [2023-05-04 07:50:29,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:50:29,208 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 07:50:29,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 426 states, 426 states have (on average 21.495305164319248) internal successors, (9157), 426 states have internal predecessors, (9157), 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 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:50:29,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:50:29,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:50:29,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2023-05-04 07:50:29,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 319 states. [2023-05-04 07:50:29,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 315 states. [2023-05-04 07:50:29,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 07:52:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 07:52:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-05-04 07:52:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-05-04 07:52:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2023-05-04 07:52:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2023-05-04 07:52:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2023-05-04 07:52:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 633 states. [2023-05-04 07:52:54,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-04 07:52:54,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-05-04 07:52:54,470 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 07:52:54,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 07:52:54,472 INFO L85 PathProgramCache]: Analyzing trace with hash -308147178, now seen corresponding path program 9 times [2023-05-04 07:52:54,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 07:52:54,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704963774] [2023-05-04 07:52:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 07:52:54,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 07:52:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-05-04 07:58:38,378 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 07:58:38,378 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 07:58:38,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-05-04 07:58:38,468 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:152) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:260) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:237) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:848) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:776) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-05-04 07:58:38,471 INFO L158 Benchmark]: Toolchain (without parser) took 803833.36ms. Allocated memory was 191.9MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 161.5MB in the beginning and 585.0MB in the end (delta: -423.4MB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-05-04 07:58:38,471 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 07:58:38,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.39ms. Allocated memory was 191.9MB in the beginning and 271.6MB in the end (delta: 79.7MB). Free memory was 161.5MB in the beginning and 219.9MB in the end (delta: -58.4MB). Peak memory consumption was 24.7MB. Max. memory is 8.0GB. [2023-05-04 07:58:38,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.71ms. Allocated memory is still 271.6MB. Free memory was 219.9MB in the beginning and 217.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-05-04 07:58:38,473 INFO L158 Benchmark]: Boogie Preprocessor took 49.61ms. Allocated memory is still 271.6MB. Free memory was 217.4MB in the beginning and 215.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 07:58:38,473 INFO L158 Benchmark]: RCFGBuilder took 516.78ms. Allocated memory is still 271.6MB. Free memory was 215.3MB in the beginning and 197.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-05-04 07:58:38,473 INFO L158 Benchmark]: TraceAbstraction took 802487.39ms. Allocated memory was 271.6MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 196.4MB in the beginning and 585.0MB in the end (delta: -388.5MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-05-04 07:58:38,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 191.9MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 697.39ms. Allocated memory was 191.9MB in the beginning and 271.6MB in the end (delta: 79.7MB). Free memory was 161.5MB in the beginning and 219.9MB in the end (delta: -58.4MB). Peak memory consumption was 24.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.71ms. Allocated memory is still 271.6MB. Free memory was 219.9MB in the beginning and 217.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.61ms. Allocated memory is still 271.6MB. Free memory was 217.4MB in the beginning and 215.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 516.78ms. Allocated memory is still 271.6MB. Free memory was 215.3MB in the beginning and 197.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 802487.39ms. Allocated memory was 271.6MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 196.4MB in the beginning and 585.0MB in the end (delta: -388.5MB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkResolutionNode(Interpolator.java:275) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown