./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i --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/circular_buffer_ok.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/pthread-deagle/circular_buffer_ok.i ./goblint.2024-09-02_08-21-23.files/protection-ghost/circular_buffer_ok.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 00:18:05,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 00:18:05,569 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 00:18:05,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 00:18:05,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 00:18:05,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 00:18:05,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 00:18:05,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 00:18:05,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 00:18:05,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 00:18:05,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 00:18:05,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 00:18:05,607 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 00:18:05,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 00:18:05,609 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 00:18:05,609 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 00:18:05,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 00:18:05,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 00:18:05,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 00:18:05,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 00:18:05,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 00:18:05,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 00:18:05,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 00:18:05,618 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 00:18:05,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 00:18:05,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 00:18:05,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 00:18:05,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 00:18:05,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 00:18:05,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 00:18:05,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:18:05,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 00:18:05,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 00:18:05,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 00:18:05,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 00:18:05,619 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 00:18:05,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 00:18:05,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 00:18:05,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 00:18:05,620 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 00:18:05,620 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 00:18:05,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-08 00:18:05,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 00:18:05,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 00:18:05,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 00:18:05,927 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-08 00:18:05,928 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-08 00:18:05,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/protection-ghost/circular_buffer_ok.yml/witness.yml [2024-09-08 00:18:06,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 00:18:06,059 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 00:18:06,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2024-09-08 00:18:07,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 00:18:08,118 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 00:18:08,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2024-09-08 00:18:08,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a9f9d511f/419976fc1c0946ba86c5f1d9f48d939f/FLAG3f149d665 [2024-09-08 00:18:08,152 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a9f9d511f/419976fc1c0946ba86c5f1d9f48d939f [2024-09-08 00:18:08,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 00:18:08,154 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-08 00:18:08,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 00:18:08,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 00:18:08,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 00:18:08,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:18:06" (1/2) ... [2024-09-08 00:18:08,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773302d5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:18:08, skipping insertion in model container [2024-09-08 00:18:08,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:18:06" (1/2) ... [2024-09-08 00:18:08,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@105cb4ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 08.09 12:18:08, skipping insertion in model container [2024-09-08 00:18:08,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:18:08" (2/2) ... [2024-09-08 00:18:08,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@773302d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08, skipping insertion in model container [2024-09-08 00:18:08,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:18:08" (2/2) ... [2024-09-08 00:18:08,207 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-08 00:18:08,208 INFO L1541 ArrayList]: Location invariant before [L765-L765] ! multithreaded || (0 <= value && value <= 6) [2024-09-08 00:18:08,209 INFO L1541 ArrayList]: Location invariant before [L764-L764] ! multithreaded || (0 <= value && value <= 6) [2024-09-08 00:18:08,209 INFO L1541 ArrayList]: ghost_variable multithreaded = 0 [2024-09-08 00:18:08,209 INFO L1541 ArrayList]: ghost_variable m_locked = 0 [2024-09-08 00:18:08,209 INFO L1541 ArrayList]: ghost_update [L745-L745] m_locked = 1; [2024-09-08 00:18:08,210 INFO L1541 ArrayList]: ghost_update [L745-L745] m_locked = 1; [2024-09-08 00:18:08,210 INFO L1541 ArrayList]: ghost_update [L745-L745] m_locked = 1; [2024-09-08 00:18:08,210 INFO L1541 ArrayList]: ghost_update [L745-L745] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L745-L745] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L745-L745] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L727-L727] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L727-L727] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L727-L727] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L727-L727] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L727-L727] m_locked = 1; [2024-09-08 00:18:08,211 INFO L1541 ArrayList]: ghost_update [L727-L727] m_locked = 1; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L753-L753] m_locked = 0; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L753-L753] m_locked = 0; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L753-L753] m_locked = 0; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L753-L753] m_locked = 0; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L753-L753] m_locked = 0; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L753-L753] m_locked = 0; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L736-L736] m_locked = 0; [2024-09-08 00:18:08,212 INFO L1541 ArrayList]: ghost_update [L736-L736] m_locked = 0; [2024-09-08 00:18:08,213 INFO L1541 ArrayList]: ghost_update [L736-L736] m_locked = 0; [2024-09-08 00:18:08,213 INFO L1541 ArrayList]: ghost_update [L736-L736] m_locked = 0; [2024-09-08 00:18:08,213 INFO L1541 ArrayList]: ghost_update [L736-L736] m_locked = 0; [2024-09-08 00:18:08,213 INFO L1541 ArrayList]: ghost_update [L736-L736] m_locked = 0; [2024-09-08 00:18:08,213 INFO L1541 ArrayList]: ghost_update [L763-L763] multithreaded = 1; [2024-09-08 00:18:08,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 00:18:08,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:18:08,758 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-08 00:18:08,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 00:18:08,991 INFO L204 MainTranslator]: Completed translation [2024-09-08 00:18:08,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08 WrapperNode [2024-09-08 00:18:08,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 00:18:08,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 00:18:08,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 00:18:08,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 00:18:09,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,086 INFO L138 Inliner]: procedures = 168, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 174 [2024-09-08 00:18:09,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 00:18:09,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 00:18:09,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 00:18:09,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 00:18:09,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 00:18:09,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 00:18:09,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 00:18:09,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 00:18:09,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (1/1) ... [2024-09-08 00:18:09,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 00:18:09,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:18:09,204 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 00:18:09,207 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 00:18:09,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 00:18:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-08 00:18:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-08 00:18:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-08 00:18:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-08 00:18:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 00:18:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-08 00:18:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 00:18:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-09-08 00:18:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 00:18:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-08 00:18:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 00:18:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 00:18:09,259 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 00:18:09,428 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 00:18:09,430 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 00:18:09,825 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 00:18:09,826 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 00:18:10,176 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 00:18:10,176 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-08 00:18:10,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:18:10 BoogieIcfgContainer [2024-09-08 00:18:10,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 00:18:10,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 00:18:10,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 00:18:10,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 00:18:10,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 08.09 12:18:06" (1/4) ... [2024-09-08 00:18:10,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731dde81 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 08.09 12:18:10, skipping insertion in model container [2024-09-08 00:18:10,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 12:18:08" (2/4) ... [2024-09-08 00:18:10,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731dde81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:18:10, skipping insertion in model container [2024-09-08 00:18:10,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:18:08" (3/4) ... [2024-09-08 00:18:10,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731dde81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:18:10, skipping insertion in model container [2024-09-08 00:18:10,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:18:10" (4/4) ... [2024-09-08 00:18:10,199 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2024-09-08 00:18:10,231 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 00:18:10,231 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-08 00:18:10,231 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 00:18:10,278 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 00:18:10,315 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 00:18:10,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 00:18:10,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:18:10,317 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 00:18:10,319 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 00:18:10,346 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 00:18:10,363 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 00:18:10,370 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;@11fee38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 00:18:10,371 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-08 00:18:10,445 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:18:10,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:18:10,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1100392114, now seen corresponding path program 1 times [2024-09-08 00:18:10,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:18:10,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707645562] [2024-09-08 00:18:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:18:10,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:18:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:18:10,757 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 00:18:10,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:18:10,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707645562] [2024-09-08 00:18:10,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707645562] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:18:10,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:18:10,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-08 00:18:10,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657927928] [2024-09-08 00:18:10,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:18:10,764 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 00:18:10,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:18:10,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 00:18:10,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 00:18:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:18:10,793 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:18:10,794 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 00:18:10,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:18:10,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:18:10,959 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 00:18:10,959 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:18:10,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:18:10,960 INFO L85 PathProgramCache]: Analyzing trace with hash -395241688, now seen corresponding path program 1 times [2024-09-08 00:18:10,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:18:10,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377884821] [2024-09-08 00:18:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:18:10,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:18:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:18:11,341 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 00:18:11,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:18:11,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377884821] [2024-09-08 00:18:11,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377884821] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:18:11,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 00:18:11,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 00:18:11,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083284955] [2024-09-08 00:18:11,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:18:11,344 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 00:18:11,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:18:11,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 00:18:11,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-08 00:18:11,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:18:11,346 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:18:11,346 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 00:18:11,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:18:11,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:18:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:18:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:18:11,504 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 00:18:11,505 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:18:11,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:18:11,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1864164271, now seen corresponding path program 1 times [2024-09-08 00:18:11,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:18:11,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357576075] [2024-09-08 00:18:11,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:18:11,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:18:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:18:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:18:12,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:18:12,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357576075] [2024-09-08 00:18:12,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357576075] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:18:12,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61624897] [2024-09-08 00:18:12,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:18:12,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:18:12,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:18:12,192 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 00:18:12,194 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 00:18:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:18:12,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 00:18:12,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:18:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:18:12,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 00:18:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:18:13,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61624897] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 00:18:13,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 00:18:13,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-09-08 00:18:13,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131862349] [2024-09-08 00:18:13,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 00:18:13,916 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-08 00:18:13,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:18:13,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-08 00:18:13,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-09-08 00:18:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:18:13,919 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:18:13,919 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 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 00:18:13,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:18:13,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:18:13,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:18:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:18:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:18:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:18:14,369 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 00:18:14,552 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,SelfDestructingSolverStorable2 [2024-09-08 00:18:14,553 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:18:14,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:18:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1433717123, now seen corresponding path program 2 times [2024-09-08 00:18:14,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:18:14,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996070470] [2024-09-08 00:18:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:18:14,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:18:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:18:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:18:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:18:16,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996070470] [2024-09-08 00:18:16,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996070470] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:18:16,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157197947] [2024-09-08 00:18:16,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 00:18:16,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:18:16,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:18:16,904 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 00:18:16,916 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 00:18:17,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 00:18:17,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 00:18:17,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-08 00:18:17,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:18:17,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:18:17,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:18:17,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:18:18,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:18:18,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:18:18,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2024-09-08 00:18:18,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-09-08 00:18:18,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-09-08 00:18:21,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:18:21,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2024-09-08 00:18:21,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-09-08 00:18:21,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-09-08 00:18:21,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:18:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:18:26,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 00:18:29,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2024-09-08 00:18:29,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:18:34,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:18:34,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2024-09-08 00:18:55,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2024-09-08 00:18:56,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:18:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:18:57,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157197947] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 00:18:57,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 00:18:57,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 38 [2024-09-08 00:18:57,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942066523] [2024-09-08 00:18:57,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 00:18:57,999 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-08 00:18:57,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:18:58,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-08 00:18:58,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1182, Unknown=0, NotChecked=0, Total=1560 [2024-09-08 00:18:58,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:18:58,002 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:18:58,002 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 39 states have internal predecessors, (132), 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 00:18:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:18:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:18:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:18:58,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:19:05,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-09-08 00:19:15,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:19:15,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:19:15,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:19:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 00:19:15,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 00:19:15,372 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:19:15,372 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:19:15,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:19:15,373 INFO L85 PathProgramCache]: Analyzing trace with hash 818479897, now seen corresponding path program 3 times [2024-09-08 00:19:15,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:19:15,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082643260] [2024-09-08 00:19:15,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:19:15,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:19:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:19:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 200 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:19:15,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:19:15,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082643260] [2024-09-08 00:19:15,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082643260] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:19:15,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084959420] [2024-09-08 00:19:15,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 00:19:15,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:19:15,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:19:15,796 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 00:19:15,799 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 00:19:18,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-09-08 00:19:18,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 00:19:18,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-08 00:19:18,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:19:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:19:18,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 00:19:18,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084959420] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:19:18,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 00:19:18,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 11 [2024-09-08 00:19:18,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727530722] [2024-09-08 00:19:18,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:19:18,583 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 00:19:18,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:19:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 00:19:18,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2024-09-08 00:19:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:19:18,585 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:19:18,586 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 00:19:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:19:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:19:18,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:19:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 00:19:18,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:19:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:19:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:19:19,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:19:19,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 00:19:19,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 00:19:19,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 00:19:19,437 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:19:19,438 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:19:19,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:19:19,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1138458622, now seen corresponding path program 4 times [2024-09-08 00:19:19,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:19:19,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67439582] [2024-09-08 00:19:19,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:19:19,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:19:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:19:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-09-08 00:19:19,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:19:19,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67439582] [2024-09-08 00:19:19,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67439582] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:19:19,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777924564] [2024-09-08 00:19:19,811 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 00:19:19,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:19:19,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:19:19,813 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 00:19:19,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 00:19:19,939 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 00:19:19,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 00:19:19,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-08 00:19:19,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:19:19,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-09-08 00:19:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-09-08 00:19:19,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 00:19:19,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777924564] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 00:19:19,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 00:19:19,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-09-08 00:19:19,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328542673] [2024-09-08 00:19:19,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 00:19:19,965 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 00:19:19,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:19:19,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 00:19:19,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-08 00:19:19,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:19:19,966 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:19:19,966 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 00:19:19,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:19:19,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:19:19,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:19:19,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 00:19:19,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 00:19:19,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:19:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:19:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:19:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:19:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 00:19:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 00:19:20,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:19:20,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 00:19:20,227 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-09-08 00:19:20,227 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-09-08 00:19:20,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 00:19:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1515551952, now seen corresponding path program 5 times [2024-09-08 00:19:20,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 00:19:20,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219923876] [2024-09-08 00:19:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 00:19:20,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 00:19:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 00:19:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:19:21,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 00:19:21,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219923876] [2024-09-08 00:19:21,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219923876] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 00:19:21,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132251493] [2024-09-08 00:19:21,706 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 00:19:21,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:19:21,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 00:19:21,708 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 00:19:21,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 00:19:22,607 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-09-08 00:19:22,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 00:19:22,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-09-08 00:19:22,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 00:19:22,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:22,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:22,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:23,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2024-09-08 00:19:23,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-09-08 00:19:23,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-09-08 00:19:23,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:23,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:26,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:26,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2024-09-08 00:19:26,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-09-08 00:19:26,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-09-08 00:19:27,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:33,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:33,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:33,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2024-09-08 00:19:33,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-09-08 00:19:33,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-09-08 00:19:46,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:19:46,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2024-09-08 00:19:46,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2024-09-08 00:19:46,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-09-08 00:19:46,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:20:08,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:20:08,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 00:20:08,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 238 [2024-09-08 00:20:08,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 3 [2024-09-08 00:20:08,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 3 [2024-09-08 00:20:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 00:20:23,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 00:20:25,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2024-09-08 00:20:25,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:20:32,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2024-09-08 00:20:32,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:20:51,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:20:51,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2024-09-08 00:21:32,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2024-09-08 00:21:32,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:21:53,473 WARN L293 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:22:25,774 WARN L293 SmtUtils]: Spent 11.04s on a formula simplification. DAG size of input: 160 DAG size of output: 157 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:22:51,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2024-09-08 00:22:51,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2024-09-08 00:22:51,425 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-09-08 00:22:51,432 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-09-08 00:22:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 00:22:55,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132251493] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 00:22:55,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 00:22:55,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20, 19] total 52 [2024-09-08 00:22:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619477153] [2024-09-08 00:22:55,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 00:22:55,351 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-09-08 00:22:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 00:22:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-09-08 00:22:55,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=540, Invalid=2321, Unknown=1, NotChecked=0, Total=2862 [2024-09-08 00:22:55,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:22:55,358 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 00:22:55,358 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 3.9056603773584904) internal successors, (207), 53 states have internal predecessors, (207), 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 00:22:55,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:22:55,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:22:55,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:22:55,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 00:22:55,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-09-08 00:22:55,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:22:55,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 00:23:44,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-09-08 00:24:06,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-09-08 00:24:19,156 WARN L293 SmtUtils]: Spent 9.59s on a formula simplification. DAG size of input: 243 DAG size of output: 200 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:24:27,086 WARN L293 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 245 DAG size of output: 184 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:24:34,532 WARN L293 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 258 DAG size of output: 194 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:24:36,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-09-08 00:24:50,198 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 256 DAG size of output: 209 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:24:53,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-09-08 00:25:01,255 WARN L293 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 246 DAG size of output: 184 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:25:09,812 WARN L293 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 258 DAG size of output: 193 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:25:28,985 WARN L293 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 240 DAG size of output: 209 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:25:48,682 WARN L293 SmtUtils]: Spent 7.45s on a formula simplification. DAG size of input: 257 DAG size of output: 210 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:26:08,081 WARN L293 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 239 DAG size of output: 208 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-09-08 00:26:10,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-09-08 00:26:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:26:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 00:26:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 00:26:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-09-08 00:26:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-08 00:26:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 00:26:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-08 00:26:16,734 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-08 00:26:16,735 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-08 00:26:16,735 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-08 00:26:16,735 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-08 00:26:16,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-08 00:26:16,939 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 00:26:16,952 INFO L408 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2024-09-08 00:26:16,960 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-08 00:26:16,964 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-08 00:26:16,966 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-08 00:26:16,966 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-08 00:26:16,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 12:26:16 BasicIcfg [2024-09-08 00:26:16,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-08 00:26:16,968 INFO L158 Benchmark]: Toolchain (without parser) took 488814.03ms. Allocated memory was 207.6MB in the beginning and 752.9MB in the end (delta: 545.3MB). Free memory was 136.6MB in the beginning and 666.4MB in the end (delta: -529.8MB). Peak memory consumption was 428.5MB. Max. memory is 16.1GB. [2024-09-08 00:26:16,968 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:26:16,968 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 207.6MB. Free memory is still 183.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 00:26:16,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 836.69ms. Allocated memory is still 207.6MB. Free memory was 136.4MB in the beginning and 168.0MB in the end (delta: -31.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2024-09-08 00:26:16,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.80ms. Allocated memory is still 207.6MB. Free memory was 168.0MB in the beginning and 164.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 00:26:16,972 INFO L158 Benchmark]: Boogie Preprocessor took 70.15ms. Allocated memory is still 207.6MB. Free memory was 164.7MB in the beginning and 162.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 00:26:16,973 INFO L158 Benchmark]: RCFGBuilder took 1018.89ms. Allocated memory is still 207.6MB. Free memory was 162.6MB in the beginning and 110.5MB in the end (delta: 52.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-09-08 00:26:16,973 INFO L158 Benchmark]: TraceAbstraction took 486784.00ms. Allocated memory was 207.6MB in the beginning and 752.9MB in the end (delta: 545.3MB). Free memory was 109.2MB in the beginning and 666.4MB in the end (delta: -557.1MB). Peak memory consumption was 399.5MB. Max. memory is 16.1GB. [2024-09-08 00:26:16,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 207.6MB. Free memory is still 183.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 836.69ms. Allocated memory is still 207.6MB. Free memory was 136.4MB in the beginning and 168.0MB in the end (delta: -31.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.80ms. Allocated memory is still 207.6MB. Free memory was 168.0MB in the beginning and 164.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.15ms. Allocated memory is still 207.6MB. Free memory was 164.7MB in the beginning and 162.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1018.89ms. Allocated memory is still 207.6MB. Free memory was 162.6MB in the beginning and 110.5MB in the end (delta: 52.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 486784.00ms. Allocated memory was 207.6MB in the beginning and 752.9MB in the end (delta: 545.3MB). Free memory was 109.2MB in the beginning and 666.4MB in the end (delta: -557.1MB). Peak memory consumption was 399.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9027, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 717, dependent conditional: 705, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8378, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 68, dependent conditional: 56, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8378, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 68, dependent conditional: 56, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9115, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 805, dependent conditional: 793, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9115, independent: 8310, independent conditional: 460, independent unconditional: 7850, dependent: 805, dependent conditional: 101, dependent unconditional: 704, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9115, independent: 8310, independent conditional: 460, independent unconditional: 7850, dependent: 805, dependent conditional: 101, dependent unconditional: 704, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 484, independent: 445, independent conditional: 91, independent unconditional: 354, dependent: 39, dependent conditional: 25, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 484, independent: 349, independent conditional: 0, independent unconditional: 349, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 135, independent: 96, independent conditional: 91, independent unconditional: 5, dependent: 39, dependent conditional: 25, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 135, independent: 96, independent conditional: 91, independent unconditional: 5, dependent: 39, dependent conditional: 25, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 947, independent: 533, independent conditional: 497, independent unconditional: 36, dependent: 414, dependent conditional: 279, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9115, independent: 7865, independent conditional: 369, independent unconditional: 7496, dependent: 766, dependent conditional: 76, dependent unconditional: 690, unknown: 484, unknown conditional: 116, unknown unconditional: 368] , Statistics on independence cache: Total cache size (in pairs): 484, Positive cache size: 445, Positive conditional cache size: 91, Positive unconditional cache size: 354, Negative cache size: 39, Negative conditional cache size: 25, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8144, Maximal queried relation: 7, Independence queries for same thread: 649, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 88, Number of trivial persistent sets: 75, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 410, independent: 398, independent conditional: 0, independent unconditional: 398, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9027, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 717, dependent conditional: 705, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8378, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 68, dependent conditional: 56, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8378, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 68, dependent conditional: 56, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9115, independent: 8310, independent conditional: 7912, independent unconditional: 398, dependent: 805, dependent conditional: 793, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9115, independent: 8310, independent conditional: 460, independent unconditional: 7850, dependent: 805, dependent conditional: 101, dependent unconditional: 704, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9115, independent: 8310, independent conditional: 460, independent unconditional: 7850, dependent: 805, dependent conditional: 101, dependent unconditional: 704, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 484, independent: 445, independent conditional: 91, independent unconditional: 354, dependent: 39, dependent conditional: 25, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 484, independent: 349, independent conditional: 0, independent unconditional: 349, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 135, independent: 96, independent conditional: 91, independent unconditional: 5, dependent: 39, dependent conditional: 25, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 135, independent: 96, independent conditional: 91, independent unconditional: 5, dependent: 39, dependent conditional: 25, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 947, independent: 533, independent conditional: 497, independent unconditional: 36, dependent: 414, dependent conditional: 279, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9115, independent: 7865, independent conditional: 369, independent unconditional: 7496, dependent: 766, dependent conditional: 76, dependent unconditional: 690, unknown: 484, unknown conditional: 116, unknown unconditional: 368] , Statistics on independence cache: Total cache size (in pairs): 484, Positive cache size: 445, Positive conditional cache size: 91, Positive unconditional cache size: 354, Negative cache size: 39, Negative conditional cache size: 25, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 8144, Maximal queried relation: 7, Independence queries for same thread: 649 - PositiveResult [Line: 764]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 765]: 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 5 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 486.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 220.1s, 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: 127, 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: 0.2s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 260.6s InterpolantComputationTime, 612 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 735 ConstructedInterpolants, 101 QuantifiedInterpolants, 41978 SizeOfPredicates, 92 NumberOfNonLiveVariables, 1768 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 737/1368 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-08 00:26:16,999 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 00:26:17,391 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-09-08 00:26:17,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE