./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-nonblocking-cntr-alt.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 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/weaver/popl20-nonblocking-cntr-alt.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-nonblocking-cntr-alt.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 09:19:33,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 09:19:33,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 09:19:33,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 09:19:33,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 09:19:33,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 09:19:33,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 09:19:33,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 09:19:33,540 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 09:19:33,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 09:19:33,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 09:19:33,542 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 09:19:33,542 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 09:19:33,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 09:19:33,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 09:19:33,545 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 09:19:33,545 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 09:19:33,545 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 09:19:33,546 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 09:19:33,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 09:19:33,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 09:19:33,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 09:19:33,547 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 09:19:33,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 09:19:33,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 09:19:33,550 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 09:19:33,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 09:19:33,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 09:19:33,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 09:19:33,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 09:19:33,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 09:19:33,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 09:19:33,552 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 09:19:33,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 09:19:33,553 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 09:19:33,553 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 09:19:33,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 09:19:33,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 09:19:33,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 09:19:33,554 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 09:19:33,554 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 09:19:33,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-09-08 09:19:33,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 09:19:33,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 09:19:33,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 09:19:33,861 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 09:19:33,862 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 09:19:33,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-nonblocking-cntr-alt.wvr.yml/witness.yml [2024-09-08 09:19:33,933 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 09:19:33,933 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 09:19:33,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-09-08 09:19:35,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 09:19:35,567 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 09:19:35,568 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-09-08 09:19:35,577 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d342becbb/cf8d036e4c4845f7aceb70db350b5786/FLAG2f0e1bbf3 [2024-09-08 09:19:35,600 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d342becbb/cf8d036e4c4845f7aceb70db350b5786 [2024-09-08 09:19:35,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 09:19:35,602 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 09:19:35,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 09:19:35,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 09:19:35,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 09:19:35,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:19:33" (1/2) ... [2024-09-08 09:19:35,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76093be1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:19:35, skipping insertion in model container [2024-09-08 09:19:35,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:19:33" (1/2) ... [2024-09-08 09:19:35,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2849800e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 09:19:35, skipping insertion in model container [2024-09-08 09:19:35,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:19:35" (2/2) ... [2024-09-08 09:19:35,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76093be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35, skipping insertion in model container [2024-09-08 09:19:35,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:19:35" (2/2) ... [2024-09-08 09:19:35,633 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 09:19:35,636 INFO L1541 ArrayList]: Location invariant before [L73-L73] ((! multithreaded || 0 <= counter) && (! multithreaded || (((4294967294LL + (long long )M1) + (long long )M2 >= 0LL && (4294967294LL - (long long )M1) + (long long )M2 >= 0LL) && (4294967294LL + (long long )M1) - (long long )M2 >= 0LL))) && (! multithreaded || 0 <= counter) [2024-09-08 09:19:35,636 INFO L1541 ArrayList]: Location invariant before [L74-L74] ((! multithreaded || 0 <= counter) && (! multithreaded || (((4294967294LL + (long long )M1) + (long long )M2 >= 0LL && (4294967294LL - (long long )M1) + (long long )M2 >= 0LL) && (4294967294LL + (long long )M1) - (long long )M2 >= 0LL))) && (! multithreaded || 0 <= counter) [2024-09-08 09:19:35,636 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 09:19:35,636 INFO L1541 ArrayList]: ghost_update [L72-L72] multithreaded = 1; [2024-09-08 09:19:35,658 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 09:19:35,864 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2124,2137] [2024-09-08 09:19:35,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 09:19:35,879 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 09:19:35,939 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr-alt.wvr.c[2124,2137] [2024-09-08 09:19:35,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 09:19:35,964 INFO L204 MainTranslator]: Completed translation [2024-09-08 09:19:35,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35 WrapperNode [2024-09-08 09:19:35,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 09:19:35,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 09:19:35,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 09:19:35,967 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 09:19:35,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:35,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,003 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2024-09-08 09:19:36,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 09:19:36,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 09:19:36,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 09:19:36,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 09:19:36,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 09:19:36,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 09:19:36,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 09:19:36,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 09:19:36,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (1/1) ... [2024-09-08 09:19:36,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 09:19:36,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:36,071 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) [2024-09-08 09:19:36,074 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 [2024-09-08 09:19:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 09:19:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 09:19:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 09:19:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 09:19:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 09:19:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 09:19:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 09:19:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 09:19:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 09:19:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 09:19:36,118 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 09:19:36,235 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 09:19:36,237 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 09:19:36,409 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 09:19:36,409 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 09:19:36,546 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 09:19:36,546 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-08 09:19:36,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:19:36 BoogieIcfgContainer [2024-09-08 09:19:36,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 09:19:36,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 09:19:36,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 09:19:36,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 09:19:36,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 09:19:33" (1/4) ... [2024-09-08 09:19:36,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c477e9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 09:19:36, skipping insertion in model container [2024-09-08 09:19:36,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:19:35" (2/4) ... [2024-09-08 09:19:36,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c477e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:19:36, skipping insertion in model container [2024-09-08 09:19:36,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:19:35" (3/4) ... [2024-09-08 09:19:36,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c477e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:19:36, skipping insertion in model container [2024-09-08 09:19:36,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:19:36" (4/4) ... [2024-09-08 09:19:36,562 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2024-09-08 09:19:36,580 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 09:19:36,580 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-08 09:19:36,580 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 09:19:36,631 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 09:19:36,677 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 09:19:36,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 09:19:36,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:36,682 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) [2024-09-08 09:19:36,684 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 [2024-09-08 09:19:36,724 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 09:19:36,738 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 09:19:36,745 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@484ee63f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 09:19:36,748 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-08 09:19:36,858 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:36,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:36,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1204611334, now seen corresponding path program 1 times [2024-09-08 09:19:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:36,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051253548] [2024-09-08 09:19:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:36,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:37,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:37,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:37,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051253548] [2024-09-08 09:19:37,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051253548] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:19:37,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 09:19:37,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-08 09:19:37,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841898132] [2024-09-08 09:19:37,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:19:37,273 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 09:19:37,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:37,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 09:19:37,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 09:19:37,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:37,301 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:37,302 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-09-08 09:19:37,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:37,454 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 09:19:37,455 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:37,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1377068381, now seen corresponding path program 1 times [2024-09-08 09:19:37,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:37,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308948101] [2024-09-08 09:19:37,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:37,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:38,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:38,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308948101] [2024-09-08 09:19:38,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308948101] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:19:38,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124149273] [2024-09-08 09:19:38,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:38,122 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) [2024-09-08 09:19:38,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 09:19:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:38,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 09:19:38,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:19:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:38,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:19:39,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:39,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124149273] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:19:39,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:19:39,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-09-08 09:19:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391176287] [2024-09-08 09:19:39,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:19:39,338 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-08 09:19:39,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:39,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-08 09:19:39,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-09-08 09:19:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:39,342 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:39,343 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4583333333333335) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:19:39,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:39,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:39,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-08 09:19:39,961 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-08 09:19:39,962 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:39,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash 718840741, now seen corresponding path program 2 times [2024-09-08 09:19:39,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:39,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103953691] [2024-09-08 09:19:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:39,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:40,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103953691] [2024-09-08 09:19:40,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103953691] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:19:40,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369083268] [2024-09-08 09:19:40,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 09:19:40,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:40,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:40,361 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) [2024-09-08 09:19:40,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 09:19:40,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 09:19:40,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:19:40,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 09:19:40,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:19:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:40,750 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:19:41,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:41,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369083268] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:19:41,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:19:41,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13] total 34 [2024-09-08 09:19:41,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108636487] [2024-09-08 09:19:41,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:19:41,269 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-08 09:19:41,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:41,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-08 09:19:41,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2024-09-08 09:19:41,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:41,273 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:41,274 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 34 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) [2024-09-08 09:19:41,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:41,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:41,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:42,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-09-08 09:19:42,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 09:19:42,965 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:42,966 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:42,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1227733791, now seen corresponding path program 3 times [2024-09-08 09:19:42,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:42,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006482288] [2024-09-08 09:19:42,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:42,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-09-08 09:19:43,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:43,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006482288] [2024-09-08 09:19:43,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006482288] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:19:43,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075879026] [2024-09-08 09:19:43,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 09:19:43,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:43,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:43,204 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) [2024-09-08 09:19:43,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 09:19:43,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-09-08 09:19:43,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:19:43,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-08 09:19:43,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:19:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-09-08 09:19:43,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:19:43,508 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-09-08 09:19:43,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075879026] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:19:43,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:19:43,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-09-08 09:19:43,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840306869] [2024-09-08 09:19:43,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:19:43,509 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-09-08 09:19:43,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:43,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-09-08 09:19:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-09-08 09:19:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:43,511 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:43,511 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 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) [2024-09-08 09:19:43,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:43,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:43,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2024-09-08 09:19:43,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:43,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:43,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:43,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-08 09:19:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:43,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 09:19:43,961 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:43,962 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:43,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1451492453, now seen corresponding path program 4 times [2024-09-08 09:19:43,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:43,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831615595] [2024-09-08 09:19:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:43,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 09:19:44,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:44,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831615595] [2024-09-08 09:19:44,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831615595] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:19:44,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641353801] [2024-09-08 09:19:44,386 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 09:19:44,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:44,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:44,388 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) [2024-09-08 09:19:44,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 09:19:44,452 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 09:19:44,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:19:44,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-08 09:19:44,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:19:44,888 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:44,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:19:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 09:19:45,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641353801] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:19:45,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:19:45,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 17] total 46 [2024-09-08 09:19:45,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368627586] [2024-09-08 09:19:45,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:19:45,368 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-09-08 09:19:45,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:45,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-09-08 09:19:45,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1923, Unknown=0, NotChecked=0, Total=2162 [2024-09-08 09:19:45,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:45,370 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:45,370 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.851063829787234) internal successors, (87), 46 states have internal predecessors, (87), 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) [2024-09-08 09:19:45,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:45,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:45,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2024-09-08 09:19:45,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:45,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-08 09:19:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-09-08 09:19:47,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 09:19:47,309 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:47,309 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:47,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:47,310 INFO L85 PathProgramCache]: Analyzing trace with hash -564654291, now seen corresponding path program 5 times [2024-09-08 09:19:47,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:47,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028081263] [2024-09-08 09:19:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:47,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 09:19:47,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:47,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028081263] [2024-09-08 09:19:47,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028081263] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:19:47,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489775401] [2024-09-08 09:19:47,743 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 09:19:47,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:47,744 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) [2024-09-08 09:19:47,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 09:19:47,793 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-09-08 09:19:47,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:19:47,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-08 09:19:47,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:19:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:48,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:19:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:48,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489775401] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:19:48,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:19:48,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 19, 17] total 45 [2024-09-08 09:19:48,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959371117] [2024-09-08 09:19:48,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:19:48,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-08 09:19:48,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:48,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-08 09:19:48,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1794, Unknown=0, NotChecked=0, Total=2070 [2024-09-08 09:19:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:48,711 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:48,712 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.826086956521739) internal successors, (84), 45 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 09:19:48,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:48,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 09:19:48,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2024-09-08 09:19:48,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:48,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-09-08 09:19:48,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-08 09:19:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-09-08 09:19:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-09-08 09:19:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2024-09-08 09:19:54,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 09:19:55,009 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:55,010 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:55,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:55,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1555627416, now seen corresponding path program 1 times [2024-09-08 09:19:55,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:55,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478446137] [2024-09-08 09:19:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:55,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 09:19:55,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:55,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478446137] [2024-09-08 09:19:55,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478446137] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 09:19:55,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 09:19:55,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 09:19:55,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876619972] [2024-09-08 09:19:55,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 09:19:55,110 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 09:19:55,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:55,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 09:19:55,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 09:19:55,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:55,111 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:55,111 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-09-08 09:19:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-08 09:19:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2024-09-08 09:19:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2024-09-08 09:19:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2024-09-08 09:19:55,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-09-08 09:19:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-09-08 09:19:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-09-08 09:19:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-09-08 09:19:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:19:55,386 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-08 09:19:55,386 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-09-08 09:19:55,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 09:19:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1302148765, now seen corresponding path program 6 times [2024-09-08 09:19:55,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 09:19:55,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803059821] [2024-09-08 09:19:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 09:19:55,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 09:19:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 09:19:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:55,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 09:19:55,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803059821] [2024-09-08 09:19:55,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803059821] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 09:19:55,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479030159] [2024-09-08 09:19:55,668 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 09:19:55,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 09:19:55,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 09:19:55,669 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 09:19:55,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 09:19:55,712 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-09-08 09:19:55,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 09:19:55,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-08 09:19:55,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 09:19:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:56,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 09:19:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 09:19:56,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479030159] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 09:19:56,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 09:19:56,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2024-09-08 09:19:56,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852877705] [2024-09-08 09:19:56,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 09:19:56,696 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-08 09:19:56,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 09:19:56,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-08 09:19:56,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1358, Unknown=0, NotChecked=0, Total=1560 [2024-09-08 09:19:56,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:56,697 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 09:19:56,698 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.0) internal successors, (80), 39 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) [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:19:56,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 09:19:57,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 09:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 09:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-08 09:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-08 09:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-09-08 09:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-09-08 09:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 09:19:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-09-08 09:19:57,789 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-09-08 09:19:57,790 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-09-08 09:19:57,790 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-09-08 09:19:57,790 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-09-08 09:19:57,790 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-09-08 09:19:57,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-08 09:19:57,990 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-09-08 09:19:57,997 INFO L408 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2024-09-08 09:19:58,000 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-08 09:19:58,000 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-08 09:19:58,002 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-08 09:19:58,002 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-08 09:19:58,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 09:19:58 BasicIcfg [2024-09-08 09:19:58,003 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-08 09:19:58,004 INFO L158 Benchmark]: Toolchain (without parser) took 22401.71ms. Allocated memory was 140.5MB in the beginning and 264.2MB in the end (delta: 123.7MB). Free memory was 96.9MB in the beginning and 123.1MB in the end (delta: -26.1MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2024-09-08 09:19:58,006 INFO L158 Benchmark]: Witness Parser took 0.71ms. Allocated memory is still 98.6MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 09:19:58,007 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 98.6MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 09:19:58,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.71ms. Allocated memory is still 140.5MB. Free memory was 96.5MB in the beginning and 82.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-08 09:19:58,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.66ms. Allocated memory is still 140.5MB. Free memory was 82.6MB in the beginning and 81.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 09:19:58,008 INFO L158 Benchmark]: Boogie Preprocessor took 29.68ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 938.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 09:19:58,008 INFO L158 Benchmark]: RCFGBuilder took 511.47ms. Allocated memory is still 140.5MB. Free memory was 79.7MB in the beginning and 89.0MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-08 09:19:58,008 INFO L158 Benchmark]: TraceAbstraction took 21450.72ms. Allocated memory was 140.5MB in the beginning and 264.2MB in the end (delta: 123.7MB). Free memory was 89.0MB in the beginning and 123.1MB in the end (delta: -34.1MB). Peak memory consumption was 90.5MB. Max. memory is 16.1GB. [2024-09-08 09:19:58,010 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 0.71ms. Allocated memory is still 98.6MB. Free memory was 68.3MB in the beginning and 68.2MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 98.6MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.71ms. Allocated memory is still 140.5MB. Free memory was 96.5MB in the beginning and 82.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.66ms. Allocated memory is still 140.5MB. Free memory was 82.6MB in the beginning and 81.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.68ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 938.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.47ms. Allocated memory is still 140.5MB. Free memory was 79.7MB in the beginning and 89.0MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 21450.72ms. Allocated memory was 140.5MB in the beginning and 264.2MB in the end (delta: 123.7MB). Free memory was 89.0MB in the beginning and 123.1MB in the end (delta: -34.1MB). Peak memory consumption was 90.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7993, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 1025, dependent conditional: 1017, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7081, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7081, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8067, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 1099, dependent conditional: 1091, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8067, independent: 6968, independent conditional: 272, independent unconditional: 6696, dependent: 1099, dependent conditional: 713, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8067, independent: 6968, independent conditional: 272, independent unconditional: 6696, dependent: 1099, dependent conditional: 713, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 362, independent: 303, independent conditional: 54, independent unconditional: 249, dependent: 59, dependent conditional: 51, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 362, independent: 240, independent conditional: 0, independent unconditional: 240, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 122, independent: 63, independent conditional: 54, independent unconditional: 9, dependent: 59, dependent conditional: 51, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 122, independent: 63, independent conditional: 54, independent unconditional: 9, dependent: 59, dependent conditional: 51, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 338, independent: 195, independent conditional: 114, independent unconditional: 81, dependent: 142, dependent conditional: 106, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8067, independent: 6665, independent conditional: 218, independent unconditional: 6447, dependent: 1040, dependent conditional: 662, dependent unconditional: 378, unknown: 362, unknown conditional: 105, unknown unconditional: 257] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 303, Positive conditional cache size: 54, Positive unconditional cache size: 249, Negative cache size: 59, Negative conditional cache size: 51, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6793, Maximal queried relation: 8, Independence queries for same thread: 912, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 114, Number of trivial persistent sets: 105, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 289, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7993, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 1025, dependent conditional: 1017, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7081, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7081, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 113, dependent conditional: 105, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8067, independent: 6968, independent conditional: 6687, independent unconditional: 281, dependent: 1099, dependent conditional: 1091, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8067, independent: 6968, independent conditional: 272, independent unconditional: 6696, dependent: 1099, dependent conditional: 713, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8067, independent: 6968, independent conditional: 272, independent unconditional: 6696, dependent: 1099, dependent conditional: 713, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 362, independent: 303, independent conditional: 54, independent unconditional: 249, dependent: 59, dependent conditional: 51, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 362, independent: 240, independent conditional: 0, independent unconditional: 240, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 122, independent: 63, independent conditional: 54, independent unconditional: 9, dependent: 59, dependent conditional: 51, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 122, independent: 63, independent conditional: 54, independent unconditional: 9, dependent: 59, dependent conditional: 51, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 338, independent: 195, independent conditional: 114, independent unconditional: 81, dependent: 142, dependent conditional: 106, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8067, independent: 6665, independent conditional: 218, independent unconditional: 6447, dependent: 1040, dependent conditional: 662, dependent unconditional: 378, unknown: 362, unknown conditional: 105, unknown unconditional: 257] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 303, Positive conditional cache size: 54, Positive unconditional cache size: 249, Negative cache size: 59, Negative conditional cache size: 51, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6793, Maximal queried relation: 8, Independence queries for same thread: 912 - PositiveResult [Line: 73]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 74]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 78]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 37 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 21.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 11.6s, 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: 380, 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, 0.3s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 393 NumberOfCodeBlocks, 393 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 557 ConstructedInterpolants, 0 QuantifiedInterpolants, 6055 SizeOfPredicates, 26 NumberOfNonLiveVariables, 706 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 83/400 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-08 09:19:58,039 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 [2024-09-08 09:19:58,240 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 Result: TRUE