./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-simple-array-sum.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da 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-simple-array-sum.wvr.c ./goblint.2024-09-02_08-21-23.files/mutex-meet-ghost/popl20-simple-array-sum.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-23 00:50:58,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 00:50:58,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 00:50:58,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 00:50:58,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 00:50:58,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 00:50:58,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 00:50:58,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 00:50:58,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 00:50:58,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 00:50:58,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 00:50:58,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 00:50:58,621 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 00:50:58,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 00:50:58,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 00:50:58,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 00:50:58,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 00:50:58,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 00:50:58,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 00:50:58,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 00:50:58,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 00:50:58,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 00:50:58,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 00:50:58,630 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 00:50:58,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 00:50:58,630 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 00:50:58,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 00:50:58,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 00:50:58,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 00:50:58,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 00:50:58,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 00:50:58,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 00:50:58,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 00:50:58,632 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 00:50:58,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 00:50:58,633 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 00:50:58,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 00:50:58,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 00:50:58,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 00:50:58,635 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 00:50:58,635 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 00:50:58,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-23 00:50:58,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 00:50:58,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 00:50:58,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 00:50:58,908 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 00:50:58,909 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 00:50:58,911 INFO L431 ainManager$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-simple-array-sum.wvr.yml/witness.yml [2024-09-23 00:50:59,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 00:50:59,030 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 00:50:59,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-09-23 00:51:00,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 00:51:00,705 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 00:51:00,706 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-09-23 00:51:00,714 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/65784d1e8/394f9987e88f49239fe1998de2bd4dee/FLAG04f22fb3e [2024-09-23 00:51:00,729 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/65784d1e8/394f9987e88f49239fe1998de2bd4dee [2024-09-23 00:51:00,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 00:51:00,731 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 00:51:00,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 00:51:00,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 00:51:00,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 00:51:00,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:50:59" (1/2) ... [2024-09-23 00:51:00,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e17652 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 12:51:00, skipping insertion in model container [2024-09-23 00:51:00,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:50:59" (1/2) ... [2024-09-23 00:51:00,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@767eca1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 12:51:00, skipping insertion in model container [2024-09-23 00:51:00,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 12:51:00" (2/2) ... [2024-09-23 00:51:00,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e17652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:00, skipping insertion in model container [2024-09-23 00:51:00,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 12:51:00" (2/2) ... [2024-09-23 00:51:00,763 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 00:51:00,765 INFO L1541 ArrayList]: Location invariant before [L98-L98] ((! multithreaded || ((((1073741823LL - (long long )N) + (long long )p >= 0LL && (long long )N + (long long )p >= 0LL) && (1073741822LL + (long long )N) - (long long )p >= 0LL) && (2147483645LL - (long long )N) - (long long )p >= 0LL)) && (! multithreaded || 0 <= p)) && (! multithreaded || 0 <= p) [2024-09-23 00:51:00,765 INFO L1541 ArrayList]: Location invariant before [L96-L96] ((! multithreaded || ((((1073741823LL - (long long )N) + (long long )p >= 0LL && (long long )N + (long long )p >= 0LL) && (1073741822LL + (long long )N) - (long long )p >= 0LL) && (2147483645LL - (long long )N) - (long long )p >= 0LL)) && (! multithreaded || 0 <= p)) && (! multithreaded || 0 <= p) [2024-09-23 00:51:00,766 INFO L1541 ArrayList]: Location invariant before [L97-L97] ((! multithreaded || ((((1073741823LL - (long long )N) + (long long )p >= 0LL && (long long )N + (long long )p >= 0LL) && (1073741822LL + (long long )N) - (long long )p >= 0LL) && (2147483645LL - (long long )N) - (long long )p >= 0LL)) && (! multithreaded || 0 <= p)) && (! multithreaded || 0 <= p) [2024-09-23 00:51:00,766 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-23 00:51:00,770 INFO L1541 ArrayList]: ghost_update [L95-L95] multithreaded = 1; [2024-09-23 00:51:00,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 00:51:00,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 00:51:00,994 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-23 00:51:01,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 00:51:01,098 INFO L204 MainTranslator]: Completed translation [2024-09-23 00:51:01,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01 WrapperNode [2024-09-23 00:51:01,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 00:51:01,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 00:51:01,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 00:51:01,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 00:51:01,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,142 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 120 [2024-09-23 00:51:01,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 00:51:01,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 00:51:01,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 00:51:01,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 00:51:01,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 00:51:01,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 00:51:01,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 00:51:01,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 00:51:01,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (1/1) ... [2024-09-23 00:51:01,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 00:51:01,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:01,235 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) [2024-09-23 00:51:01,237 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 [2024-09-23 00:51:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 00:51:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-23 00:51:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-23 00:51:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-23 00:51:01,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-23 00:51:01,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-23 00:51:01,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-23 00:51:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 00:51:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-23 00:51:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-23 00:51:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-23 00:51:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-23 00:51:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 00:51:01,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 00:51:01,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-23 00:51:01,326 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 00:51:01,479 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 00:51:01,482 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 00:51:01,766 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 00:51:01,767 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 00:51:01,966 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 00:51:01,966 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-23 00:51:01,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 12:51:01 BoogieIcfgContainer [2024-09-23 00:51:01,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 00:51:01,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 00:51:01,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 00:51:01,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 00:51:01,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 12:50:59" (1/4) ... [2024-09-23 00:51:01,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17276ab4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 12:51:01, skipping insertion in model container [2024-09-23 00:51:01,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 12:51:00" (2/4) ... [2024-09-23 00:51:01,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17276ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 12:51:01, skipping insertion in model container [2024-09-23 00:51:01,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 12:51:01" (3/4) ... [2024-09-23 00:51:01,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17276ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 12:51:01, skipping insertion in model container [2024-09-23 00:51:01,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 12:51:01" (4/4) ... [2024-09-23 00:51:01,976 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2024-09-23 00:51:01,993 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 00:51:01,994 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-23 00:51:01,994 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 00:51:02,052 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-23 00:51:02,095 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 00:51:02,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 00:51:02,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:02,098 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) [2024-09-23 00:51:02,100 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 [2024-09-23 00:51:02,136 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 00:51:02,149 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-23 00:51:02,156 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;@6e6ee880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 00:51:02,158 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-23 00:51:02,245 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:02,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:02,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1056386022, now seen corresponding path program 1 times [2024-09-23 00:51:02,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:02,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694285767] [2024-09-23 00:51:02,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:02,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:51:02,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:02,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694285767] [2024-09-23 00:51:02,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694285767] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:51:02,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 00:51:02,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 00:51:02,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570822605] [2024-09-23 00:51:02,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:51:02,856 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-23 00:51:02,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:02,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-23 00:51:02,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-23 00:51:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:02,887 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:02,888 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-09-23 00:51:02,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:02,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:02,971 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 00:51:02,971 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:02,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash 575320007, now seen corresponding path program 1 times [2024-09-23 00:51:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:02,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091099044] [2024-09-23 00:51:02,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:51:03,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:03,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091099044] [2024-09-23 00:51:03,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091099044] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:03,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623203454] [2024-09-23 00:51:03,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:03,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:03,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:03,166 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) [2024-09-23 00:51:03,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-23 00:51:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:03,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-23 00:51:03,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:51:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:51:03,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:51:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:51:03,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623203454] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:03,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-23 00:51:03,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-09-23 00:51:03,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884052197] [2024-09-23 00:51:03,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:51:03,382 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 00:51:03,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:03,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 00:51:03,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-09-23 00:51:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:03,384 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:03,384 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-09-23 00:51:03,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:03,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:03,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-23 00:51:03,646 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 [2024-09-23 00:51:03,646 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:03,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:03,647 INFO L85 PathProgramCache]: Analyzing trace with hash -841251000, now seen corresponding path program 1 times [2024-09-23 00:51:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:03,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871111088] [2024-09-23 00:51:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:03,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 00:51:03,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:03,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871111088] [2024-09-23 00:51:03,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871111088] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:03,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38357601] [2024-09-23 00:51:03,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:03,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:03,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:03,859 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) [2024-09-23 00:51:03,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-23 00:51:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:03,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-23 00:51:03,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:51:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 00:51:04,025 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:51:04,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-23 00:51:04,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38357601] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:51:04,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:51:04,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-09-23 00:51:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634306338] [2024-09-23 00:51:04,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:51:04,231 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-23 00:51:04,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:04,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-23 00:51:04,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-09-23 00:51:04,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:04,233 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:04,233 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 00:51:04,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:04,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:04,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:04,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:04,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:04,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-23 00:51:04,836 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 [2024-09-23 00:51:04,837 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:04,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1831952094, now seen corresponding path program 1 times [2024-09-23 00:51:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:04,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299124130] [2024-09-23 00:51:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:04,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:51:05,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299124130] [2024-09-23 00:51:05,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299124130] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:05,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080588347] [2024-09-23 00:51:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:05,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:05,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:05,043 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) [2024-09-23 00:51:05,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-23 00:51:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:05,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-23 00:51:05,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:51:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:51:05,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:51:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 00:51:05,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080588347] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:51:05,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:51:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-23 00:51:05,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45842748] [2024-09-23 00:51:05,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:51:05,312 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-23 00:51:05,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:05,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-23 00:51:05,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-09-23 00:51:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:05,314 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:05,314 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 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) [2024-09-23 00:51:05,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:05,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:05,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:05,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:05,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:05,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-23 00:51:05,764 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 [2024-09-23 00:51:05,765 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:05,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1777468637, now seen corresponding path program 2 times [2024-09-23 00:51:05,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:05,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462636850] [2024-09-23 00:51:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:05,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-23 00:51:05,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:05,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462636850] [2024-09-23 00:51:05,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462636850] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:05,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347793580] [2024-09-23 00:51:05,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 00:51:05,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:05,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:06,001 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) [2024-09-23 00:51:06,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-23 00:51:06,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-23 00:51:06,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:51:06,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-23 00:51:06,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:51:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 00:51:06,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-23 00:51:06,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347793580] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 00:51:06,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-23 00:51:06,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2024-09-23 00:51:06,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864856572] [2024-09-23 00:51:06,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 00:51:06,427 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-23 00:51:06,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:06,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-23 00:51:06,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-09-23 00:51:06,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:06,428 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:06,428 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2024-09-23 00:51:06,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:06,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:06,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:06,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:06,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 00:51:06,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-23 00:51:06,896 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 [2024-09-23 00:51:06,896 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:06,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1215718405, now seen corresponding path program 3 times [2024-09-23 00:51:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:06,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632430415] [2024-09-23 00:51:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:06,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-23 00:51:07,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:07,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632430415] [2024-09-23 00:51:07,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632430415] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:07,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111995504] [2024-09-23 00:51:07,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-23 00:51:07,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:07,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:07,265 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) [2024-09-23 00:51:07,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-23 00:51:07,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-23 00:51:07,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:51:07,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-23 00:51:07,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:51:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 00:51:07,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:51:07,676 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-23 00:51:07,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111995504] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:51:07,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:51:07,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 19 [2024-09-23 00:51:07,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246792398] [2024-09-23 00:51:07,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:51:07,678 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-23 00:51:07,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:07,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-23 00:51:07,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-09-23 00:51:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:07,679 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:07,679 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.421052631578948) internal successors, (103), 19 states have internal predecessors, (103), 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) [2024-09-23 00:51:07,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:07,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:07,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-23 00:51:07,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 00:51:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:51:08,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-23 00:51:08,493 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 [2024-09-23 00:51:08,494 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:08,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1271961044, now seen corresponding path program 1 times [2024-09-23 00:51:08,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:08,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206851641] [2024-09-23 00:51:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:08,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:08,818 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 00:51:08,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:08,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206851641] [2024-09-23 00:51:08,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206851641] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:08,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123847835] [2024-09-23 00:51:08,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:08,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:08,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:08,821 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) [2024-09-23 00:51:08,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-23 00:51:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:08,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-23 00:51:08,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:51:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 00:51:09,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:51:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-23 00:51:09,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123847835] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:51:09,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:51:09,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-09-23 00:51:09,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790740820] [2024-09-23 00:51:09,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:51:09,641 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-23 00:51:09,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:09,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-23 00:51:09,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-09-23 00:51:09,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:09,644 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:09,644 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.4) internal successors, (88), 20 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 00:51:09,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:09,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:09,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:09,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:09,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-23 00:51:09,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:51:09,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:10,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 00:51:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:51:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-23 00:51:10,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-23 00:51:10,542 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,SelfDestructingSolverStorable6 [2024-09-23 00:51:10,543 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-23 00:51:10,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 00:51:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash 467999132, now seen corresponding path program 2 times [2024-09-23 00:51:10,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 00:51:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126030980] [2024-09-23 00:51:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 00:51:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 00:51:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 00:51:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-23 00:51:10,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 00:51:10,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126030980] [2024-09-23 00:51:10,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126030980] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-23 00:51:10,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82769306] [2024-09-23 00:51:10,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-23 00:51:10,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:10,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 00:51:10,926 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-23 00:51:10,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-23 00:51:11,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-23 00:51:11,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-23 00:51:11,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-23 00:51:11,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-23 00:51:11,581 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 17 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-23 00:51:11,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-23 00:51:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 5 proven. 34 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-23 00:51:12,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82769306] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-23 00:51:12,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-23 00:51:12,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 36 [2024-09-23 00:51:12,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922729247] [2024-09-23 00:51:12,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-23 00:51:12,648 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-23 00:51:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 00:51:12,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-23 00:51:12,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=1103, Unknown=0, NotChecked=0, Total=1406 [2024-09-23 00:51:12,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:12,650 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 00:51:12,650 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.378378378378378) internal successors, (162), 37 states have internal predecessors, (162), 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) [2024-09-23 00:51:12,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-23 00:51:12,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:12,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 00:51:12,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:12,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-23 00:51:12,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2024-09-23 00:51:12,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-23 00:51:12,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 00:51:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 00:51:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-23 00:51:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-23 00:51:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-09-23 00:51:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-23 00:51:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-09-23 00:51:21,803 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-09-23 00:51:21,804 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-09-23 00:51:21,804 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-09-23 00:51:21,804 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-09-23 00:51:21,804 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-09-23 00:51:21,804 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-09-23 00:51:21,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-23 00:51:22,005 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-23 00:51:22,011 INFO L408 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-09-23 00:51:22,015 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-23 00:51:22,015 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-23 00:51:22,017 INFO L469 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-09-23 00:51:22,017 INFO L470 ceAbstractionStarter]: WitnessConsidered=3 [2024-09-23 00:51:22,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 12:51:22 BasicIcfg [2024-09-23 00:51:22,018 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-23 00:51:22,019 INFO L158 Benchmark]: Toolchain (without parser) took 21288.19ms. Allocated memory was 161.5MB in the beginning and 457.2MB in the end (delta: 295.7MB). Free memory was 90.9MB in the beginning and 169.3MB in the end (delta: -78.4MB). Peak memory consumption was 220.8MB. Max. memory is 16.1GB. [2024-09-23 00:51:22,019 INFO L158 Benchmark]: Witness Parser took 0.23ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 78.5MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 00:51:22,019 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 161.5MB. Free memory was 135.7MB in the beginning and 135.4MB in the end (delta: 231.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 00:51:22,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.39ms. Allocated memory is still 161.5MB. Free memory was 90.7MB in the beginning and 75.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-23 00:51:22,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.49ms. Allocated memory is still 161.5MB. Free memory was 75.6MB in the beginning and 73.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 00:51:22,020 INFO L158 Benchmark]: Boogie Preprocessor took 47.92ms. Allocated memory is still 161.5MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 00:51:22,020 INFO L158 Benchmark]: RCFGBuilder took 775.23ms. Allocated memory is still 161.5MB. Free memory was 71.8MB in the beginning and 90.4MB in the end (delta: -18.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-09-23 00:51:22,021 INFO L158 Benchmark]: TraceAbstraction took 20049.59ms. Allocated memory was 161.5MB in the beginning and 457.2MB in the end (delta: 295.7MB). Free memory was 89.6MB in the beginning and 169.3MB in the end (delta: -79.7MB). Peak memory consumption was 220.3MB. Max. memory is 16.1GB. [2024-09-23 00:51:22,022 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 0.23ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 78.5MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 161.5MB. Free memory was 135.7MB in the beginning and 135.4MB in the end (delta: 231.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.39ms. Allocated memory is still 161.5MB. Free memory was 90.7MB in the beginning and 75.6MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.49ms. Allocated memory is still 161.5MB. Free memory was 75.6MB in the beginning and 73.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.92ms. Allocated memory is still 161.5MB. Free memory was 73.7MB in the beginning and 72.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 775.23ms. Allocated memory is still 161.5MB. Free memory was 71.8MB in the beginning and 90.4MB in the end (delta: -18.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * TraceAbstraction took 20049.59ms. Allocated memory was 161.5MB in the beginning and 457.2MB in the end (delta: 295.7MB). Free memory was 89.6MB in the beginning and 169.3MB in the end (delta: -79.7MB). Peak memory consumption was 220.3MB. 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: 332252, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 34367, dependent conditional: 34352, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 303454, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 5569, dependent conditional: 5554, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 303454, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 5569, dependent conditional: 5554, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 348152, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 50267, dependent conditional: 50252, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 348152, independent: 297885, independent conditional: 12021, independent unconditional: 285864, dependent: 50267, dependent conditional: 28869, dependent unconditional: 21398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 348152, independent: 297885, independent conditional: 12021, independent unconditional: 285864, dependent: 50267, dependent conditional: 28869, dependent unconditional: 21398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1091, independent: 826, independent conditional: 58, independent unconditional: 768, dependent: 265, dependent conditional: 248, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1091, independent: 766, independent conditional: 0, independent unconditional: 766, dependent: 325, dependent conditional: 0, dependent unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 325, independent: 60, independent conditional: 58, independent unconditional: 2, dependent: 265, dependent conditional: 248, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 325, independent: 60, independent conditional: 58, independent unconditional: 2, dependent: 265, dependent conditional: 248, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 794, independent: 136, independent conditional: 108, independent unconditional: 28, dependent: 659, dependent conditional: 610, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 348152, independent: 297059, independent conditional: 11963, independent unconditional: 285096, dependent: 50002, dependent conditional: 28621, dependent unconditional: 21381, unknown: 1091, unknown conditional: 306, unknown unconditional: 785] , Statistics on independence cache: Total cache size (in pairs): 1091, Positive cache size: 826, Positive conditional cache size: 58, Positive unconditional cache size: 768, Negative cache size: 265, Negative conditional cache size: 248, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 306381, Maximal queried relation: 8, Independence queries for same thread: 28798, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 293, Number of trivial persistent sets: 192, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 881, independent: 866, independent conditional: 0, independent unconditional: 866, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 332252, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 34367, dependent conditional: 34352, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 303454, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 5569, dependent conditional: 5554, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 303454, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 5569, dependent conditional: 5554, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 348152, independent: 297885, independent conditional: 297019, independent unconditional: 866, dependent: 50267, dependent conditional: 50252, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 348152, independent: 297885, independent conditional: 12021, independent unconditional: 285864, dependent: 50267, dependent conditional: 28869, dependent unconditional: 21398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 348152, independent: 297885, independent conditional: 12021, independent unconditional: 285864, dependent: 50267, dependent conditional: 28869, dependent unconditional: 21398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1091, independent: 826, independent conditional: 58, independent unconditional: 768, dependent: 265, dependent conditional: 248, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1091, independent: 766, independent conditional: 0, independent unconditional: 766, dependent: 325, dependent conditional: 0, dependent unconditional: 325, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 325, independent: 60, independent conditional: 58, independent unconditional: 2, dependent: 265, dependent conditional: 248, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 325, independent: 60, independent conditional: 58, independent unconditional: 2, dependent: 265, dependent conditional: 248, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 794, independent: 136, independent conditional: 108, independent unconditional: 28, dependent: 659, dependent conditional: 610, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 348152, independent: 297059, independent conditional: 11963, independent unconditional: 285096, dependent: 50002, dependent conditional: 28621, dependent unconditional: 21381, unknown: 1091, unknown conditional: 306, unknown unconditional: 785] , Statistics on independence cache: Total cache size (in pairs): 1091, Positive cache size: 826, Positive conditional cache size: 58, Positive unconditional cache size: 768, Negative cache size: 265, Negative conditional cache size: 248, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 306381, Maximal queried relation: 8, Independence queries for same thread: 28798 - PositiveResult [Line: 96]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 97]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 98]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 60 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 19.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 3, 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: 213, 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, 0.4s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 466 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 641 ConstructedInterpolants, 0 QuantifiedInterpolants, 5785 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1420 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 21 InterpolantComputations, 3 PerfectInterpolantSequences, 112/294 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! [2024-09-23 00:51:22,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-09-23 00:51:22,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE