./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/fib_unsafe-6.i --full-output --validate ./goblint.2024-08-08_07-59-58.files/protection-ghost/fib_unsafe-6.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/fib_unsafe-6.i ./goblint.2024-08-08_07-59-58.files/protection-ghost/fib_unsafe-6.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-c091e2e-m [2024-08-14 03:01:16,283 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 03:01:16,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-14 03:01:16,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 03:01:16,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 03:01:16,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 03:01:16,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 03:01:16,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 03:01:16,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 03:01:16,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 03:01:16,365 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 03:01:16,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 03:01:16,365 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 03:01:16,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 03:01:16,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 03:01:16,367 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 03:01:16,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 03:01:16,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 03:01:16,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 03:01:16,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 03:01:16,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 03:01:16,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 03:01:16,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 03:01:16,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 03:01:16,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 03:01:16,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 03:01:16,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 03:01:16,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 03:01:16,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 03:01:16,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 03:01:16,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 03:01:16,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 03:01:16,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 03:01:16,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 03:01:16,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 03:01:16,374 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-14 03:01:16,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 03:01:16,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 03:01:16,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-14 03:01:16,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 03:01:16,375 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-14 03:01:16,386 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-14 03:01:16,386 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-14 03:01:16,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 03:01:16,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 03:01:16,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 03:01:16,609 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 03:01:16,610 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 03:01:16,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-ghost/fib_unsafe-6.yml/witness.yml [2024-08-14 03:01:16,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 03:01:16,703 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 03:01:16,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/fib_unsafe-6.i [2024-08-14 03:01:17,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 03:01:18,110 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 03:01:18,111 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-6.i [2024-08-14 03:01:18,119 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f5439029a/df885be0a1504b05833aa3e62c69ae0d/FLAG201c0a87a [2024-08-14 03:01:18,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f5439029a/df885be0a1504b05833aa3e62c69ae0d [2024-08-14 03:01:18,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 03:01:18,130 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-14 03:01:18,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 03:01:18,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 03:01:18,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 03:01:18,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 03:01:16" (1/2) ... [2024-08-14 03:01:18,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e42d5e5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 03:01:18, skipping insertion in model container [2024-08-14 03:01:18,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 03:01:16" (1/2) ... [2024-08-14 03:01:18,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@925c9d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 03:01:18, skipping insertion in model container [2024-08-14 03:01:18,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 03:01:18" (2/2) ... [2024-08-14 03:01:18,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e42d5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18, skipping insertion in model container [2024-08-14 03:01:18,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 03:01:18" (2/2) ... [2024-08-14 03:01:18,138 INFO L81 nessWitnessExtractor]: Only extracting loop invariants from correctness witness [2024-08-14 03:01:18,152 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-14 03:01:18,153 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-14 03:01:18,153 INFO L106 edCorrectnessWitness]: ghost_update [L720-L720] multithreaded = 1; [2024-08-14 03:01:18,182 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-14 03:01:18,396 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-6.i[30243,30256] [2024-08-14 03:01:18,415 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 03:01:18,422 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-08-14 03:01:18,487 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_unsafe-6.i[30243,30256] Start Parsing Local [2024-08-14 03:01:18,495 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 03:01:18,521 INFO L206 MainTranslator]: Completed translation [2024-08-14 03:01:18,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18 WrapperNode [2024-08-14 03:01:18,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 03:01:18,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-14 03:01:18,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-14 03:01:18,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-14 03:01:18,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,547 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-08-14 03:01:18,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-14 03:01:18,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 03:01:18,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 03:01:18,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 03:01:18,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 03:01:18,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-14 03:01:18,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-14 03:01:18,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-14 03:01:18,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (1/1) ... [2024-08-14 03:01:18,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 03:01:18,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 03:01:18,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-14 03:01:18,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-14 03:01:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-08-14 03:01:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-08-14 03:01:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-08-14 03:01:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-08-14 03:01:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-08-14 03:01:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 03:01:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-14 03:01:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-08-14 03:01:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 03:01:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 03:01:18,613 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-08-14 03:01:18,701 INFO L244 CfgBuilder]: Building ICFG [2024-08-14 03:01:18,702 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 03:01:18,813 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-08-14 03:01:18,813 INFO L293 CfgBuilder]: Performing block encoding [2024-08-14 03:01:18,914 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 03:01:18,914 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-08-14 03:01:18,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 03:01:18 BoogieIcfgContainer [2024-08-14 03:01:18,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-14 03:01:18,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 03:01:18,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 03:01:18,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 03:01:18,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 03:01:16" (1/4) ... [2024-08-14 03:01:18,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9db7eb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.08 03:01:18, skipping insertion in model container [2024-08-14 03:01:18,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 03:01:18" (2/4) ... [2024-08-14 03:01:18,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9db7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 03:01:18, skipping insertion in model container [2024-08-14 03:01:18,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 03:01:18" (3/4) ... [2024-08-14 03:01:18,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9db7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 03:01:18, skipping insertion in model container [2024-08-14 03:01:18,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 03:01:18" (4/4) ... [2024-08-14 03:01:18,926 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-6.i [2024-08-14 03:01:18,939 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 03:01:18,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 03:01:18,940 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-14 03:01:18,968 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-08-14 03:01:19,000 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 03:01:19,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-14 03:01:19,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 03:01:19,003 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-14 03:01:19,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-14 03:01:19,032 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-14 03:01:19,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-08-14 03:01:19,044 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=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@34d60b66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 03:01:19,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-14 03:01:19,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-14 03:01:19,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 03:01:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1765294180, now seen corresponding path program 1 times [2024-08-14 03:01:19,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 03:01:19,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287672544] [2024-08-14 03:01:19,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:19,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 03:01:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:19,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 03:01:19,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287672544] [2024-08-14 03:01:19,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287672544] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 03:01:19,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 03:01:19,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 03:01:19,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923505004] [2024-08-14 03:01:19,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 03:01:19,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 03:01:19,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 03:01:19,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 03:01:19,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 03:01:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:19,436 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 03:01:19,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-08-14 03:01:19,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:19,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:19,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 03:01:19,483 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-14 03:01:19,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 03:01:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash -923735379, now seen corresponding path program 1 times [2024-08-14 03:01:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 03:01:19,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248470180] [2024-08-14 03:01:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:19,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 03:01:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:19,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 03:01:19,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248470180] [2024-08-14 03:01:19,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248470180] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 03:01:19,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524531363] [2024-08-14 03:01:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:19,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:19,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 03:01:19,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 03:01:19,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-08-14 03:01:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:19,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 3 conjunts are in the unsatisfiable core [2024-08-14 03:01:19,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 03:01:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:19,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 03:01:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:19,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524531363] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 03:01:19,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 03:01:19,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-08-14 03:01:19,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511220948] [2024-08-14 03:01:19,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 03:01:19,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-08-14 03:01:19,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 03:01:19,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-08-14 03:01:19,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-08-14 03:01:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:19,785 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 03:01:19,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2024-08-14 03:01:19,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:19,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:19,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:19,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:19,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-08-14 03:01:20,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-08-14 03:01:20,071 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-14 03:01:20,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 03:01:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash 514485596, now seen corresponding path program 2 times [2024-08-14 03:01:20,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 03:01:20,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460342489] [2024-08-14 03:01:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:20,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 03:01:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:20,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 03:01:20,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460342489] [2024-08-14 03:01:20,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460342489] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 03:01:20,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738932460] [2024-08-14 03:01:20,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-08-14 03:01:20,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:20,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 03:01:20,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 03:01:20,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-08-14 03:01:20,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-08-14 03:01:20,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 03:01:20,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2024-08-14 03:01:20,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 03:01:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:20,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 03:01:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:20,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738932460] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 03:01:20,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 03:01:20,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-08-14 03:01:20,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965759480] [2024-08-14 03:01:20,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 03:01:20,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-14 03:01:20,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 03:01:20,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-14 03:01:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-08-14 03:01:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:20,475 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 03:01:20,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 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) [2024-08-14 03:01:20,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:20,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:20,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-14 03:01:20,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-08-14 03:01:20,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:20,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-14 03:01:20,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 03:01:20,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1254984196, now seen corresponding path program 3 times [2024-08-14 03:01:20,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 03:01:20,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765791997] [2024-08-14 03:01:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:20,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 03:01:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:21,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 03:01:21,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765791997] [2024-08-14 03:01:21,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765791997] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 03:01:21,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993390154] [2024-08-14 03:01:21,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-08-14 03:01:21,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:21,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 03:01:21,153 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 03:01:21,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-08-14 03:01:21,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-08-14 03:01:21,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-08-14 03:01:21,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-14 03:01:21,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 03:01:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:21,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 03:01:21,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993390154] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 03:01:21,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 03:01:21,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2024-08-14 03:01:21,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033480993] [2024-08-14 03:01:21,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 03:01:21,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-08-14 03:01:21,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 03:01:21,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-08-14 03:01:21,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-08-14 03:01:21,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:21,450 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 03:01:21,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.076923076923077) internal successors, (92), 13 states have internal predecessors, (92), 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) [2024-08-14 03:01:21,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:21,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:21,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-14 03:01:21,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:21,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:21,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:21,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-14 03:01:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:21,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-08-14 03:01:21,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:21,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-14 03:01:21,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 03:01:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 102540656, now seen corresponding path program 1 times [2024-08-14 03:01:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 03:01:21,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188233209] [2024-08-14 03:01:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:21,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 03:01:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:21,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 03:01:21,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188233209] [2024-08-14 03:01:21,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188233209] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 03:01:21,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962556389] [2024-08-14 03:01:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:21,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:21,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 03:01:21,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 03:01:21,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-08-14 03:01:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:21,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 8 conjunts are in the unsatisfiable core [2024-08-14 03:01:21,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 03:01:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-08-14 03:01:22,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-08-14 03:01:22,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962556389] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 03:01:22,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-08-14 03:01:22,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2024-08-14 03:01:22,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387836032] [2024-08-14 03:01:22,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 03:01:22,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-08-14 03:01:22,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 03:01:22,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-08-14 03:01:22,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2024-08-14 03:01:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:22,107 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 03:01:22,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 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) [2024-08-14 03:01:22,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:22,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:22,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-14 03:01:22,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:22,107 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-14 03:01:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:22,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:22,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-08-14 03:01:22,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:22,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-14 03:01:22,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 03:01:22,404 INFO L85 PathProgramCache]: Analyzing trace with hash 587624348, now seen corresponding path program 1 times [2024-08-14 03:01:22,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 03:01:22,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069344449] [2024-08-14 03:01:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:22,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 03:01:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:22,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 03:01:22,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069344449] [2024-08-14 03:01:22,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069344449] provided 0 perfect and 1 imperfect interpolant sequences [2024-08-14 03:01:22,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333431976] [2024-08-14 03:01:22,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:22,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:22,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-14 03:01:22,571 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-08-14 03:01:22,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-08-14 03:01:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 03:01:22,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 12 conjunts are in the unsatisfiable core [2024-08-14 03:01:22,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-08-14 03:01:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:22,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-08-14 03:01:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-14 03:01:22,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333431976] provided 0 perfect and 2 imperfect interpolant sequences [2024-08-14 03:01:22,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-08-14 03:01:22,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 17 [2024-08-14 03:01:22,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004131085] [2024-08-14 03:01:22,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-08-14 03:01:22,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-08-14 03:01:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 03:01:22,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-08-14 03:01:22,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-08-14 03:01:22,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:22,831 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-14 03:01:22,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 17 states have internal predecessors, (97), 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) [2024-08-14 03:01:22,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:22,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:22,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-08-14 03:01:22,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:22,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:22,831 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-14 03:01:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 03:01:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-08-14 03:01:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-08-14 03:01:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-08-14 03:01:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-08-14 03:01:22,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-08-14 03:01:23,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-08-14 03:01:23,094 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-08-14 03:01:23,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 03:01:23,095 INFO L85 PathProgramCache]: Analyzing trace with hash 785790236, now seen corresponding path program 2 times [2024-08-14 03:01:23,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 03:01:23,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143512092] [2024-08-14 03:01:23,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 03:01:23,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 03:01:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 03:01:23,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 03:01:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 03:01:23,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 03:01:23,184 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 03:01:23,186 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-08-14 03:01:23,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-08-14 03:01:23,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-08-14 03:01:23,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-08-14 03:01:23,194 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-08-14 03:01:23,200 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-14 03:01:23,200 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 03:01:23,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 03:01:23 BasicIcfg [2024-08-14 03:01:23,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 03:01:23,292 INFO L158 Benchmark]: Toolchain (without parser) took 5161.81ms. Allocated memory was 184.5MB in the beginning and 278.9MB in the end (delta: 94.4MB). Free memory was 122.2MB in the beginning and 149.4MB in the end (delta: -27.2MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2024-08-14 03:01:23,292 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 03:01:23,292 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 184.5MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 03:01:23,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.27ms. Allocated memory is still 184.5MB. Free memory was 122.2MB in the beginning and 98.3MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-08-14 03:01:23,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.75ms. Allocated memory is still 184.5MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 03:01:23,294 INFO L158 Benchmark]: Boogie Preprocessor took 16.20ms. Allocated memory is still 184.5MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 03:01:23,295 INFO L158 Benchmark]: RCFGBuilder took 349.30ms. Allocated memory is still 184.5MB. Free memory was 94.8MB in the beginning and 72.7MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-08-14 03:01:23,295 INFO L158 Benchmark]: TraceAbstraction took 4373.90ms. Allocated memory was 184.5MB in the beginning and 278.9MB in the end (delta: 94.4MB). Free memory was 71.9MB in the beginning and 149.4MB in the end (delta: -77.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-08-14 03:01:23,296 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.64ms. Allocated memory is still 184.5MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.27ms. Allocated memory is still 184.5MB. Free memory was 122.2MB in the beginning and 98.3MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.75ms. Allocated memory is still 184.5MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.20ms. Allocated memory is still 184.5MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.30ms. Allocated memory is still 184.5MB. Free memory was 94.8MB in the beginning and 72.7MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4373.90ms. Allocated memory was 184.5MB in the beginning and 278.9MB in the end (delta: 94.4MB). Free memory was 71.9MB in the beginning and 149.4MB in the end (delta: -77.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3097, independent: 2597, independent conditional: 2350, independent unconditional: 247, dependent: 500, dependent conditional: 493, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 2350, independent unconditional: 247, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 2350, independent unconditional: 247, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 0, independent unconditional: 2597, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 0, independent unconditional: 2597, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 0, independent unconditional: 2597, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 231, independent conditional: 0, independent unconditional: 231, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 230, independent conditional: 0, independent unconditional: 230, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2604, independent: 2366, independent conditional: 0, independent unconditional: 2366, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 493 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 35, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 254, independent: 247, independent conditional: 0, independent unconditional: 247, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3097, independent: 2597, independent conditional: 2350, independent unconditional: 247, dependent: 500, dependent conditional: 493, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 2350, independent unconditional: 247, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 2350, independent unconditional: 247, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 0, independent unconditional: 2597, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 0, independent unconditional: 2597, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2604, independent: 2597, independent conditional: 0, independent unconditional: 2597, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 238, independent: 231, independent conditional: 0, independent unconditional: 231, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 238, independent: 230, independent conditional: 0, independent unconditional: 230, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2604, independent: 2366, independent conditional: 0, independent unconditional: 2366, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 238, unknown conditional: 0, unknown unconditional: 238] , Statistics on independence cache: Total cache size (in pairs): 238, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 493 - CounterExampleResult [Line: 681]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int multithreaded = 0; [L682] 0 int i, j; [L685] 0 int p, q; [L702] 0 int cur = 1, prev = 0, next = 0; [L703] 0 int x; [L713] 0 pthread_t id1, id2; VAL [\old(argc)=611, \old(argv)={612:613}, argc=611, cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L715] 0 i = 1 VAL [\old(argc)=611, \old(argv)={612:613}, argc=611, cur=1, i=1, j=0, next=0, p=0, prev=0, q=0, x=0] [L718] 0 j = 1 VAL [\old(argc)=611, \old(argv)={612:613}, argc=611, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L720] 0 //@ ghost multithreaded = 1; VAL [\old(argc)=611, \old(argv)={612:613}, argc=611, cur=1, i=1, id1=-2, j=1, next=0, p=0, prev=0, q=0, x=0] [L720] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=611, \old(argv)={612:613}, argc=611, cur=1, i=1, id1=-2, j=1, next=0, p=0, prev=0, q=0, x=0] [L687] 1 p = 0 VAL [\old(arg)={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=611, \old(argv)={612:613}, arg={0:0}, argc=611, cur=1, i=1, id1=-2, id2=-1, j=1, next=0, p=0, prev=0, q=0, x=0] [L695] 2 q = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] CALL, EXPR 0 fib() [L705] 0 x = 0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L687] COND TRUE 1 p < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L689] 1 i = i + j VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=1, next=0, p=0, prev=0, q=0, x=0] [L687] 1 p++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=1, next=0, p=1, prev=0, q=0, x=0] [L695] COND TRUE 2 q < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=1, next=0, p=1, prev=0, q=0, x=0] [L697] 2 j = j + i VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=0, p=1, prev=0, q=0, x=0] [L695] 2 q++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=0, p=1, prev=0, q=1, x=0] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=1, p=1, prev=1, q=1, x=1] [L687] COND TRUE 1 p < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=2, j=3, next=1, p=1, prev=1, q=1, x=1] [L689] 1 i = i + j VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=3, next=1, p=1, prev=1, q=1, x=1] [L687] 1 p++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=3, next=1, p=2, prev=1, q=1, x=1] [L695] COND TRUE 2 q < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=3, next=1, p=2, prev=1, q=1, x=1] [L697] 2 j = j + i VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=8, next=1, p=2, prev=1, q=1, x=1] [L695] 2 q++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=1, i=5, j=8, next=1, p=2, prev=1, q=2, x=1] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=2, i=5, j=8, next=2, p=2, prev=1, q=2, x=2] [L687] COND TRUE 1 p < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=2, i=5, j=8, next=2, p=2, prev=1, q=2, x=2] [L689] 1 i = i + j VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=8, next=2, p=2, prev=1, q=2, x=2] [L687] 1 p++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=8, next=2, p=3, prev=1, q=2, x=2] [L695] COND TRUE 2 q < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=8, next=2, p=3, prev=1, q=2, x=2] [L697] 2 j = j + i VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=21, next=2, p=3, prev=1, q=2, x=2] [L695] 2 q++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=2, i=13, j=21, next=2, p=3, prev=1, q=3, x=2] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=3, i=13, j=21, next=3, p=3, prev=2, q=3, x=3] [L687] COND TRUE 1 p < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=3, i=13, j=21, next=3, p=3, prev=2, q=3, x=3] [L689] 1 i = i + j VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=21, next=3, p=3, prev=2, q=3, x=3] [L687] 1 p++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=21, next=3, p=4, prev=2, q=3, x=3] [L695] COND TRUE 2 q < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=21, next=3, p=4, prev=2, q=3, x=3] [L697] 2 j = j + i VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=55, next=3, p=4, prev=2, q=3, x=3] [L695] 2 q++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=3, i=34, j=55, next=3, p=4, prev=2, q=4, x=3] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=5, i=34, j=55, next=5, p=4, prev=3, q=4, x=4] [L687] COND TRUE 1 p < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=5, i=34, j=55, next=5, p=4, prev=3, q=4, x=4] [L689] 1 i = i + j VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=55, next=5, p=4, prev=3, q=4, x=4] [L687] 1 p++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=55, next=5, p=5, prev=3, q=4, x=4] [L695] COND TRUE 2 q < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=55, next=5, p=5, prev=3, q=4, x=4] [L697] 2 j = j + i VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=144, next=5, p=5, prev=3, q=4, x=4] [L695] 2 q++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=5, i=89, j=144, next=5, p=5, prev=3, q=5, x=4] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L687] COND TRUE 1 p < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=8, i=89, j=144, next=8, p=5, prev=5, q=5, x=5] [L689] 1 i = i + j VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=144, next=8, p=5, prev=5, q=5, x=5] [L687] 1 p++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=144, next=8, p=6, prev=5, q=5, x=5] [L695] COND TRUE 2 q < 6 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=144, next=8, p=6, prev=5, q=5, x=5] [L697] 2 j = j + i VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=377, next=8, p=6, prev=5, q=5, x=5] [L695] 2 q++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=8, i=233, j=377, next=8, p=6, prev=5, q=6, x=5] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, cur=13, i=233, j=377, next=13, p=6, prev=8, q=6, x=6] [L687] COND FALSE 1 !(p < 6) [L692] 1 return ((void *)0); [L695] COND FALSE 2 !(q < 6) [L700] 2 return ((void *)0); [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=21, i=233, j=377, next=21, p=6, prev=13, q=6, x=7] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=34, i=233, j=377, next=34, p=6, prev=21, q=6, x=8] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=55, i=233, j=377, next=55, p=6, prev=34, q=6, x=9] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=89, i=233, j=377, next=89, p=6, prev=55, q=6, x=10] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=144, i=233, j=377, next=144, p=6, prev=89, q=6, x=11] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=233, i=233, j=377, next=233, p=6, prev=144, q=6, x=12] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=377, i=233, j=377, next=377, p=6, prev=233, q=6, x=13] [L705] COND TRUE 0 x < 14 [L706] 0 next = prev + cur [L707] 0 prev = cur [L708] 0 cur = next [L705] 0 x++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=610, i=233, j=377, next=610, p=6, prev=377, q=6, x=14] [L705] COND FALSE 0 !(x < 14) [L710] 0 return prev; [L722] RET, EXPR 0 fib() [L722] 0 int correct = fib(); [L724] 0 _Bool assert_cond = i < correct && j < correct; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=611, \old(argv)={612:613}, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, argc=611, assert_cond=0, correct=377, cur=610, i=233, id1=-2, id2=-1, j=377, next=610, p=6, prev=377, q=6, x=14] [L726] CALL 0 __VERIFIER_assert(assert_cond) [L681] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=610, expression=0, i=233, j=377, next=610, p=6, prev=377, q=6, x=14] [L681] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, cur=610, expression=0, i=233, j=377, next=610, p=6, prev=377, q=6, x=14] - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 39 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 716 NumberOfCodeBlocks, 716 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 777 ConstructedInterpolants, 0 QuantifiedInterpolants, 1899 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1200 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 656/2014 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-14 03:01:23,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-08-14 03:01:23,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE