./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-min.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/protection-ghost/popl20-three-array-min.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c ./goblint.2024-09-02_08-21-23.files/protection-ghost/popl20-three-array-min.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-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 00:17:49,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 00:17:49,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 00:17:49,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 00:17:49,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 00:17:49,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 00:17:49,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 00:17:49,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 00:17:49,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 00:17:49,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 00:17:49,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 00:17:49,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 00:17:49,316 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 00:17:49,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 00:17:49,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 00:17:49,320 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 00:17:49,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 00:17:49,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 00:17:49,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 00:17:49,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 00:17:49,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 00:17:49,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 00:17:49,326 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 00:17:49,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 00:17:49,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 00:17:49,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 00:17:49,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 00:17:49,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 00:17:49,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 00:17:49,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 00:17:49,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:17:49,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 00:17:49,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 00:17:49,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 00:17:49,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 00:17:49,331 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 00:17:49,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 00:17:49,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 00:17:49,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 00:17:49,332 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 00:17:49,332 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 00:17:49,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-08 00:17:49,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 00:17:49,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 00:17:49,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 00:17:49,620 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 00:17:49,621 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 00:17:49,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/popl20-three-array-min.wvr.yml/witness.yml [2024-09-08 00:17:49,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 00:17:49,721 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 00:17:49,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2024-09-08 00:17:51,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 00:17:51,395 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 00:17:51,396 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2024-09-08 00:17:51,404 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cb22da693/c10aabecfab843a0a32acf6ae8b86724/FLAG8c9f383a1 [2024-09-08 00:17:51,418 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/cb22da693/c10aabecfab843a0a32acf6ae8b86724 [2024-09-08 00:17:51,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 00:17:51,420 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 00:17:51,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 00:17:51,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 00:17:51,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 00:17:51,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:17:49" (1/2) ... [2024-09-08 00:17:51,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab4d821 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:17:51, skipping insertion in model container [2024-09-08 00:17:51,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:17:49" (1/2) ... [2024-09-08 00:17:51,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7adcda28 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:17:51, skipping insertion in model container [2024-09-08 00:17:51,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:17:51" (2/2) ... [2024-09-08 00:17:51,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab4d821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51, skipping insertion in model container [2024-09-08 00:17:51,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:17:51" (2/2) ... [2024-09-08 00:17:51,450 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 00:17:51,451 INFO L1541 ArrayList]: Location invariant before [L108-L108] (! multithreaded || 1 <= N) && (! multithreaded || 1 <= p) [2024-09-08 00:17:51,451 INFO L1541 ArrayList]: Location invariant before [L107-L107] (! multithreaded || 1 <= N) && (! multithreaded || 1 <= p) [2024-09-08 00:17:51,452 INFO L1541 ArrayList]: Location invariant before [L109-L109] (! multithreaded || 1 <= N) && (! multithreaded || 1 <= p) [2024-09-08 00:17:51,452 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 00:17:51,452 INFO L1541 ArrayList]: ghost_update [L106-L106] multithreaded = 1; [2024-09-08 00:17:51,473 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 00:17:51,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:17:51,736 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 00:17:51,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:17:51,835 INFO L204 MainTranslator]: Completed translation [2024-09-08 00:17:51,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51 WrapperNode [2024-09-08 00:17:51,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 00:17:51,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 00:17:51,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 00:17:51,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 00:17:51,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,900 INFO L138 Inliner]: procedures = 25, calls = 43, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 233 [2024-09-08 00:17:51,901 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 00:17:51,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 00:17:51,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 00:17:51,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 00:17:51,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 00:17:51,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 00:17:51,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 00:17:51,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 00:17:51,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (1/1) ... [2024-09-08 00:17:51,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:17:52,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:17:52,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 00:17:52,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 00:17:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 00:17:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 00:17:52,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 00:17:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 00:17:52,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 00:17:52,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 00:17:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 00:17:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 00:17:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 00:17:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 00:17:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 00:17:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 00:17:52,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 00:17:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 00:17:52,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 00:17:52,094 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 00:17:52,218 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 00:17:52,220 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 00:17:52,687 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 00:17:52,687 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 00:17:53,027 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 00:17:53,028 INFO L318 CfgBuilder]: Removed 6 assume(true) statements. [2024-09-08 00:17:53,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:17:53 BoogieIcfgContainer [2024-09-08 00:17:53,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 00:17:53,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 00:17:53,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 00:17:53,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 00:17:53,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:17:49" (1/4) ... [2024-09-08 00:17:53,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5843394b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 12:17:53, skipping insertion in model container [2024-09-08 00:17:53,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 12:17:51" (2/4) ... [2024-09-08 00:17:53,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5843394b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:17:53, skipping insertion in model container [2024-09-08 00:17:53,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:17:51" (3/4) ... [2024-09-08 00:17:53,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5843394b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:17:53, skipping insertion in model container [2024-09-08 00:17:53,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:17:53" (4/4) ... [2024-09-08 00:17:53,044 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2024-09-08 00:17:53,062 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 00:17:53,062 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-08 00:17:53,063 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 00:17:53,122 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-08 00:17:53,245 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 00:17:53,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 00:17:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:17:53,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 00:17:53,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 00:17:53,289 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 00:17:53,303 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 00:17:53,313 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;@62254e59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 00:17:53,313 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-08 00:17:53,422 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)] === [2024-09-08 00:17:53,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:17:53,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1228136176, now seen corresponding path program 1 times [2024-09-08 00:17:53,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:17:53,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131464447] [2024-09-08 00:17:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:53,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:17:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:17:53,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:17:53,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131464447] [2024-09-08 00:17:53,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131464447] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:17:53,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:17:53,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 00:17:53,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355930731] [2024-09-08 00:17:53,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:17:53,917 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 00:17:53,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:17:53,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 00:17:53,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 00:17:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:53,949 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:17:53,951 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-09-08 00:17:53,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:54,139 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 00:17:54,139 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 00:17:54,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:17:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash -82983477, now seen corresponding path program 1 times [2024-09-08 00:17:54,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:17:54,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963895255] [2024-09-08 00:17:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:54,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:17:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:54,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:17:54,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:17:54,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963895255] [2024-09-08 00:17:54,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963895255] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:17:54,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:17:54,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 00:17:54,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489550486] [2024-09-08 00:17:54,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:17:54,383 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 00:17:54,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:17:54,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 00:17:54,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-08 00:17:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:54,385 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:17:54,385 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 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) [2024-09-08 00:17:54,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:54,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:54,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:54,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:54,611 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 00:17:54,611 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-09-08 00:17:54,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:17:54,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1294440878, now seen corresponding path program 1 times [2024-09-08 00:17:54,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:17:54,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214309377] [2024-09-08 00:17:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:54,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:17:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:54,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 00:17:54,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:17:54,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214309377] [2024-09-08 00:17:54,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214309377] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:17:54,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:17:54,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 00:17:54,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713629231] [2024-09-08 00:17:54,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:17:54,764 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 00:17:54,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:17:54,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 00:17:54,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 00:17:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:54,766 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:17:54,766 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 00:17:54,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:54,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:54,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:54,836 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 00:17:54,837 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)] === [2024-09-08 00:17:54,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:17:54,837 INFO L85 PathProgramCache]: Analyzing trace with hash -167160643, now seen corresponding path program 1 times [2024-09-08 00:17:54,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:17:54,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734094979] [2024-09-08 00:17:54,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:54,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:17:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-08 00:17:54,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:17:54,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734094979] [2024-09-08 00:17:54,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734094979] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:17:54,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:17:54,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-08 00:17:54,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383765895] [2024-09-08 00:17:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:17:54,975 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 00:17:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:17:54,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 00:17:54,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-08 00:17:54,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:54,977 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:17:54,979 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 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) [2024-09-08 00:17:54,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:54,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:54,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:54,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 00:17:55,133 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-08 00:17:55,133 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)] === [2024-09-08 00:17:55,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:17:55,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1392660666, now seen corresponding path program 1 times [2024-09-08 00:17:55,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:17:55,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126862340] [2024-09-08 00:17:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:55,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:17:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 00:17:55,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:17:55,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126862340] [2024-09-08 00:17:55,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126862340] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:17:55,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419580735] [2024-09-08 00:17:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:55,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:17:55,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:17:55,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 00:17:55,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 00:17:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:55,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 00:17:55,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:17:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 00:17:55,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 00:17:55,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419580735] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:17:55,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 00:17:55,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-08 00:17:55,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619450125] [2024-09-08 00:17:55,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:17:55,577 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 00:17:55,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:17:55,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 00:17:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-09-08 00:17:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:55,581 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:17:55,581 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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) [2024-09-08 00:17:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 00:17:55,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 00:17:55,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:55,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 00:17:55,914 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:17:55,916 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)] === [2024-09-08 00:17:55,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:17:55,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1769504029, now seen corresponding path program 1 times [2024-09-08 00:17:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:17:55,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685758325] [2024-09-08 00:17:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:55,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:17:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 00:17:56,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:17:56,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685758325] [2024-09-08 00:17:56,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685758325] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:17:56,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845512184] [2024-09-08 00:17:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:56,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:17:56,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:17:56,114 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 00:17:56,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 00:17:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:56,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 00:17:56,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:17:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 00:17:56,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 00:17:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 00:17:56,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845512184] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 00:17:56,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 00:17:56,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-09-08 00:17:56,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41375884] [2024-09-08 00:17:56,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 00:17:56,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 00:17:56,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:17:56,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 00:17:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-09-08 00:17:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:56,517 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:17:56,517 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 00:17:56,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:56,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:56,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:56,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 00:17:56,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:56,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 00:17:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:56,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 00:17:56,890 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:17:56,891 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)] === [2024-09-08 00:17:56,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:17:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 831893137, now seen corresponding path program 2 times [2024-09-08 00:17:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:17:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812187032] [2024-09-08 00:17:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:17:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:17:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:17:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-09-08 00:17:57,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:17:57,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812187032] [2024-09-08 00:17:57,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812187032] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:17:57,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068878839] [2024-09-08 00:17:57,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 00:17:57,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:17:57,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:17:57,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 00:17:57,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 00:17:57,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 00:17:57,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 00:17:57,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 00:17:57,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:17:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 00:17:57,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 00:17:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 00:17:57,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068878839] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 00:17:57,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 00:17:57,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 16 [2024-09-08 00:17:57,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250912147] [2024-09-08 00:17:57,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 00:17:57,504 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-08 00:17:57,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:17:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-08 00:17:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-09-08 00:17:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:57,505 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:17:57,506 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.529411764705882) internal successors, (94), 16 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 00:17:57,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:57,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:57,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:57,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 00:17:57,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:57,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:57,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:17:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-08 00:17:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:17:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 00:17:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:17:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-08 00:17:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-08 00:17:58,868 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-09-08 00:17:58,869 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-09-08 00:17:58,869 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-09-08 00:17:58,869 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-09-08 00:17:58,869 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-09-08 00:17:58,869 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-09-08 00:17:58,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 00:17:59,073 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:17:59,083 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-09-08 00:17:59,087 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-08 00:17:59,087 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-08 00:17:59,089 INFO L469 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-09-08 00:17:59,089 INFO L470 ceAbstractionStarter]: WitnessConsidered=3 [2024-09-08 00:17:59,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 12:17:59 BasicIcfg [2024-09-08 00:17:59,090 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-08 00:17:59,091 INFO L158 Benchmark]: Toolchain (without parser) took 7671.54ms. Allocated memory was 142.6MB in the beginning and 239.1MB in the end (delta: 96.5MB). Free memory was 69.8MB in the beginning and 139.5MB in the end (delta: -69.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2024-09-08 00:17:59,091 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:17:59,091 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 142.6MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:17:59,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.73ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 69.5MB in the beginning and 156.6MB in the end (delta: -87.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2024-09-08 00:17:59,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.26ms. Allocated memory is still 190.8MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 00:17:59,095 INFO L158 Benchmark]: Boogie Preprocessor took 67.70ms. Allocated memory is still 190.8MB. Free memory was 154.5MB in the beginning and 151.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 00:17:59,095 INFO L158 Benchmark]: RCFGBuilder took 1060.34ms. Allocated memory is still 190.8MB. Free memory was 151.3MB in the beginning and 66.4MB in the end (delta: 84.9MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2024-09-08 00:17:59,095 INFO L158 Benchmark]: TraceAbstraction took 6056.60ms. Allocated memory was 190.8MB in the beginning and 239.1MB in the end (delta: 48.2MB). Free memory was 65.4MB in the beginning and 139.5MB in the end (delta: -74.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:17:59,097 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 0.19ms. Allocated memory is still 142.6MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 142.6MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.73ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 69.5MB in the beginning and 156.6MB in the end (delta: -87.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.26ms. Allocated memory is still 190.8MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.70ms. Allocated memory is still 190.8MB. Free memory was 154.5MB in the beginning and 151.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1060.34ms. Allocated memory is still 190.8MB. Free memory was 151.3MB in the beginning and 66.4MB in the end (delta: 84.9MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6056.60ms. Allocated memory was 190.8MB in the beginning and 239.1MB in the end (delta: 48.2MB). Free memory was 65.4MB in the beginning and 139.5MB in the end (delta: -74.1MB). There was no memory consumed. 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: 14655, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 1811, dependent conditional: 1796, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13112, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 268, dependent conditional: 253, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13112, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 268, dependent conditional: 253, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14923, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 2079, dependent conditional: 2064, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14923, independent: 12844, independent conditional: 404, independent unconditional: 12440, dependent: 2079, dependent conditional: 1214, dependent unconditional: 865, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14923, independent: 12844, independent conditional: 404, independent unconditional: 12440, dependent: 2079, dependent conditional: 1214, dependent unconditional: 865, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 817, independent: 732, independent conditional: 16, independent unconditional: 716, dependent: 85, dependent conditional: 68, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 817, independent: 714, independent conditional: 0, independent unconditional: 714, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 103, independent: 18, independent conditional: 16, independent unconditional: 2, dependent: 85, dependent conditional: 68, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 103, independent: 18, independent conditional: 16, independent unconditional: 2, dependent: 85, dependent conditional: 68, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 514, independent: 90, independent conditional: 57, independent unconditional: 33, dependent: 424, dependent conditional: 325, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 14923, independent: 12112, independent conditional: 388, independent unconditional: 11724, dependent: 1994, dependent conditional: 1146, dependent unconditional: 848, unknown: 817, unknown conditional: 84, unknown unconditional: 733] , Statistics on independence cache: Total cache size (in pairs): 817, Positive cache size: 732, Positive conditional cache size: 16, Positive unconditional cache size: 716, Negative cache size: 85, Negative conditional cache size: 68, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12487, Maximal queried relation: 6, Independence queries for same thread: 1543, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 237, Number of trivial persistent sets: 145, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 818, independent: 803, independent conditional: 0, independent unconditional: 803, 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: 14655, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 1811, dependent conditional: 1796, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13112, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 268, dependent conditional: 253, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 13112, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 268, dependent conditional: 253, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14923, independent: 12844, independent conditional: 12041, independent unconditional: 803, dependent: 2079, dependent conditional: 2064, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 14923, independent: 12844, independent conditional: 404, independent unconditional: 12440, dependent: 2079, dependent conditional: 1214, dependent unconditional: 865, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14923, independent: 12844, independent conditional: 404, independent unconditional: 12440, dependent: 2079, dependent conditional: 1214, dependent unconditional: 865, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 817, independent: 732, independent conditional: 16, independent unconditional: 716, dependent: 85, dependent conditional: 68, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 817, independent: 714, independent conditional: 0, independent unconditional: 714, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 103, independent: 18, independent conditional: 16, independent unconditional: 2, dependent: 85, dependent conditional: 68, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 103, independent: 18, independent conditional: 16, independent unconditional: 2, dependent: 85, dependent conditional: 68, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 514, independent: 90, independent conditional: 57, independent unconditional: 33, dependent: 424, dependent conditional: 325, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 14923, independent: 12112, independent conditional: 388, independent unconditional: 11724, dependent: 1994, dependent conditional: 1146, dependent unconditional: 848, unknown: 817, unknown conditional: 84, unknown unconditional: 733] , Statistics on independence cache: Total cache size (in pairs): 817, Positive cache size: 732, Positive conditional cache size: 16, Positive unconditional cache size: 716, Negative cache size: 85, Negative conditional cache size: 68, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12487, Maximal queried relation: 6, Independence queries for same thread: 1543 - PositiveResult [Line: 107]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 108]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 109]: 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, 59 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 2.4s, 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: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 1239 SizeOfPredicates, 6 NumberOfNonLiveVariables, 861 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 54/67 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-08 00:17:59,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-09-08 00:17:59,325 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