./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.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/mutex-meet-local/read_write_lock-1-pthread.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e94c40da Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i ./goblint.2024-09-02_08-21-23.files/mutex-meet-local/read_write_lock-1-pthread.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-23 23:23:50,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-23 23:23:50,764 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-23 23:23:50,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-23 23:23:50,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-23 23:23:50,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-23 23:23:50,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-23 23:23:50,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-23 23:23:50,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-23 23:23:50,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-23 23:23:50,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-23 23:23:50,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-23 23:23:50,802 INFO L153 SettingsManager]: * Use SBE=true [2024-09-23 23:23:50,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-23 23:23:50,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-23 23:23:50,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-23 23:23:50,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-23 23:23:50,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-23 23:23:50,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-23 23:23:50,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-23 23:23:50,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-23 23:23:50,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-23 23:23:50,809 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-23 23:23:50,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-23 23:23:50,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-23 23:23:50,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-23 23:23:50,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-23 23:23:50,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-23 23:23:50,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-23 23:23:50,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-23 23:23:50,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 23:23:50,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-23 23:23:50,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-23 23:23:50,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-23 23:23:50,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-23 23:23:50,811 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-23 23:23:50,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-23 23:23:50,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-23 23:23:50,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-23 23:23:50,813 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-23 23:23:50,814 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-23 23:23:50,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-09-23 23:23:51,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-23 23:23:51,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-23 23:23:51,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-23 23:23:51,066 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-23 23:23:51,067 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-23 23:23:51,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-09-02_08-21-23.files/mutex-meet-local/read_write_lock-1-pthread.yml/witness.yml [2024-09-23 23:23:51,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-23 23:23:51,142 INFO L274 PluginConnector]: CDTParser initialized [2024-09-23 23:23:51,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-09-23 23:23:52,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-23 23:23:52,814 INFO L384 CDTParser]: Found 1 translation units. [2024-09-23 23:23:52,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1-pthread.i [2024-09-23 23:23:52,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2e0c06983/44c05309378c4e9f801ad4470f1294bb/FLAGe81d30360 [2024-09-23 23:23:52,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2e0c06983/44c05309378c4e9f801ad4470f1294bb [2024-09-23 23:23:52,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-23 23:23:52,845 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-23 23:23:52,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-23 23:23:52,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-23 23:23:52,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-23 23:23:52,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 11:23:51" (1/2) ... [2024-09-23 23:23:52,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a3dac0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 11:23:52, skipping insertion in model container [2024-09-23 23:23:52,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 11:23:51" (1/2) ... [2024-09-23 23:23:52,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@307e4b23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 23.09 11:23:52, skipping insertion in model container [2024-09-23 23:23:52,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 11:23:52" (2/2) ... [2024-09-23 23:23:52,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a3dac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:52, skipping insertion in model container [2024-09-23 23:23:52,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.09 11:23:52" (2/2) ... [2024-09-23 23:23:52,883 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-23 23:23:52,884 INFO L1541 ArrayList]: Location invariant before [L705-L705] (x == 0 || x == 3) && (y == 0 || y == 3) [2024-09-23 23:23:52,885 INFO L1541 ArrayList]: Location invariant before [L708-L708] (x == 0 || x == 3) && (y == 0 || y == 3) [2024-09-23 23:23:52,885 INFO L1541 ArrayList]: Location invariant before [L699-L699] (x == 0 || x == 3) && (y == 0 || y == 3) [2024-09-23 23:23:52,885 INFO L1541 ArrayList]: Location invariant before [L698-L698] x == 0 || x == 3 [2024-09-23 23:23:52,885 INFO L1541 ArrayList]: Location invariant before [L702-L702] (x == 0 || x == 3) && (y == 0 || y == 3) [2024-09-23 23:23:52,885 INFO L1541 ArrayList]: Location invariant before [L691-L691] x == 0 || x == 3 [2024-09-23 23:23:52,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-23 23:23:53,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 23:23:53,358 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-23 23:23:53,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-23 23:23:53,489 INFO L204 MainTranslator]: Completed translation [2024-09-23 23:23:53,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53 WrapperNode [2024-09-23 23:23:53,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-23 23:23:53,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-23 23:23:53,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-23 23:23:53,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-23 23:23:53,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,542 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-09-23 23:23:53,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-23 23:23:53,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-23 23:23:53,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-23 23:23:53,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-23 23:23:53,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,573 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-23 23:23:53,574 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-23 23:23:53,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-23 23:23:53,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-23 23:23:53,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (1/1) ... [2024-09-23 23:23:53,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-23 23:23:53,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 23:23:53,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-23 23:23:53,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-23 23:23:53,648 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-09-23 23:23:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-23 23:23:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-23 23:23:53,649 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-09-23 23:23:53,650 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-09-23 23:23:53,651 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-23 23:23:53,776 INFO L242 CfgBuilder]: Building ICFG [2024-09-23 23:23:53,778 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-23 23:23:53,950 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-23 23:23:53,950 INFO L291 CfgBuilder]: Performing block encoding [2024-09-23 23:23:54,117 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-23 23:23:54,118 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-23 23:23:54,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 11:23:54 BoogieIcfgContainer [2024-09-23 23:23:54,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-23 23:23:54,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-23 23:23:54,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-23 23:23:54,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-23 23:23:54,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 23.09 11:23:51" (1/4) ... [2024-09-23 23:23:54,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3557f886 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 23.09 11:23:54, skipping insertion in model container [2024-09-23 23:23:54,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.09 11:23:52" (2/4) ... [2024-09-23 23:23:54,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3557f886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 11:23:54, skipping insertion in model container [2024-09-23 23:23:54,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.09 11:23:53" (3/4) ... [2024-09-23 23:23:54,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3557f886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 11:23:54, skipping insertion in model container [2024-09-23 23:23:54,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 11:23:54" (4/4) ... [2024-09-23 23:23:54,130 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1-pthread.i [2024-09-23 23:23:54,146 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-23 23:23:54,147 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-09-23 23:23:54,147 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-23 23:23:54,210 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-09-23 23:23:54,257 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:23:54,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 23:23:54,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 23:23:54,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 23:23:54,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-23 23:23:54,294 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 23:23:54,312 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork2 ======== [2024-09-23 23:23:54,320 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;@1592dd12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:23:54,321 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-23 23:23:54,484 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:54,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:54,492 INFO L85 PathProgramCache]: Analyzing trace with hash 81009815, now seen corresponding path program 1 times [2024-09-23 23:23:54,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:54,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83543054] [2024-09-23 23:23:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:54,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:54,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:54,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83543054] [2024-09-23 23:23:54,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83543054] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:54,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:54,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 23:23:54,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180283854] [2024-09-23 23:23:54,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:54,793 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:54,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:54,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:54,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:54,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:54,824 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:54,826 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:54,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:54,911 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-23 23:23:54,912 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:54,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash 86409089, now seen corresponding path program 1 times [2024-09-23 23:23:54,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:54,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303315935] [2024-09-23 23:23:54,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:55,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:55,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303315935] [2024-09-23 23:23:55,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303315935] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:55,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:55,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 23:23:55,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748807799] [2024-09-23 23:23:55,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:55,146 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:55,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:55,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:55,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:55,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:55,148 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:55,148 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:55,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,366 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-23 23:23:55,367 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:55,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1078772641, now seen corresponding path program 1 times [2024-09-23 23:23:55,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:55,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521774523] [2024-09-23 23:23:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:55,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:55,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521774523] [2024-09-23 23:23:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521774523] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:55,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:55,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-23 23:23:55,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223090656] [2024-09-23 23:23:55,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:55,436 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:55,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:55,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:55,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:55,437 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:55,437 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:55,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,564 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-23 23:23:55,565 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:55,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:55,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1613380479, now seen corresponding path program 1 times [2024-09-23 23:23:55,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:55,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187189334] [2024-09-23 23:23:55,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:55,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:55,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:55,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:55,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187189334] [2024-09-23 23:23:55,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187189334] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:55,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:55,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 23:23:55,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638526044] [2024-09-23 23:23:55,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:55,677 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 23:23:55,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:55,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 23:23:55,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-23 23:23:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:55,678 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:55,679 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:55,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 23:23:55,997 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-23 23:23:55,997 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:55,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash 956995777, now seen corresponding path program 1 times [2024-09-23 23:23:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:55,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530082080] [2024-09-23 23:23:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:55,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:56,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530082080] [2024-09-23 23:23:56,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530082080] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:56,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:56,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 23:23:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230700198] [2024-09-23 23:23:56,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:56,081 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 23:23:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 23:23:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-23 23:23:56,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:56,082 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:56,083 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 23:23:56,083 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 23:23:56,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:23:56,581 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-23 23:23:56,581 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:56,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:56,582 INFO L85 PathProgramCache]: Analyzing trace with hash -163023245, now seen corresponding path program 1 times [2024-09-23 23:23:56,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:56,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407974162] [2024-09-23 23:23:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:56,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:56,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:56,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407974162] [2024-09-23 23:23:56,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407974162] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:56,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:56,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 23:23:56,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232383222] [2024-09-23 23:23:56,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:56,658 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:56,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:56,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:56,659 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:56,659 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:56,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 23:23:56,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:23:56,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:23:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:23:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:56,840 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-09-23 23:23:56,840 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-09-23 23:23:56,840 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-09-23 23:23:56,841 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 5 remaining) [2024-09-23 23:23:56,841 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 5 remaining) [2024-09-23 23:23:56,841 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-23 23:23:56,847 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-09-23 23:23:56,850 INFO L312 ceAbstractionStarter]: Result for error location readerThread1of1ForFork2 was SAFE,SAFE,SAFE,SAFE,SAFE (1/5) [2024-09-23 23:23:56,854 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:23:56,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 23:23:56,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 23:23:56,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 23:23:56,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-09-23 23:23:56,862 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 23:23:56,862 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == readerThread1of1ForFork1 ======== [2024-09-23 23:23:56,863 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;@1592dd12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:23:56,863 INFO L337 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-09-23 23:23:56,936 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:56,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1219825590, now seen corresponding path program 1 times [2024-09-23 23:23:56,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:56,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114704474] [2024-09-23 23:23:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:56,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:56,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:56,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114704474] [2024-09-23 23:23:56,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114704474] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:56,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:56,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 23:23:56,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837019403] [2024-09-23 23:23:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:56,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:56,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:56,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:56,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:56,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:56,962 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:56,962 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:56,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,011 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-23 23:23:57,011 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:57,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash -119651276, now seen corresponding path program 1 times [2024-09-23 23:23:57,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666834420] [2024-09-23 23:23:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:57,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:57,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:57,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666834420] [2024-09-23 23:23:57,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666834420] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:57,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:57,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 23:23:57,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511105363] [2024-09-23 23:23:57,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:57,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:57,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:57,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:57,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,099 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:57,100 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:57,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,259 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-23 23:23:57,259 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:57,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1993382558, now seen corresponding path program 1 times [2024-09-23 23:23:57,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:57,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759403988] [2024-09-23 23:23:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:57,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:57,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:57,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759403988] [2024-09-23 23:23:57,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759403988] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:57,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:57,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 23:23:57,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980448327] [2024-09-23 23:23:57,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:57,308 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:57,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:57,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,310 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:57,310 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:57,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,403 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-23 23:23:57,403 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:57,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:57,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1506336832, now seen corresponding path program 1 times [2024-09-23 23:23:57,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:57,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528141059] [2024-09-23 23:23:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:57,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:57,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:57,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528141059] [2024-09-23 23:23:57,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528141059] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:57,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:57,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 23:23:57,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379359744] [2024-09-23 23:23:57,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:57,470 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 23:23:57,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:57,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 23:23:57,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-23 23:23:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,471 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:57,472 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:57,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-23 23:23:57,638 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-23 23:23:57,638 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT, readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 2 more)] === [2024-09-23 23:23:57,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1309357541, now seen corresponding path program 1 times [2024-09-23 23:23:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103044212] [2024-09-23 23:23:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:57,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:57,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:57,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103044212] [2024-09-23 23:23:57,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103044212] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:57,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:57,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 23:23:57,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195405156] [2024-09-23 23:23:57,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:57,720 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 23:23:57,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:57,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 23:23:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-23 23:23:57,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:57,721 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:57,721 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 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) [2024-09-23 23:23:57,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:57,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-23 23:23:57,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:58,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:23:58,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:23:58,348 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-09-23 23:23:58,349 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-09-23 23:23:58,349 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-09-23 23:23:58,349 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 5 remaining) [2024-09-23 23:23:58,349 INFO L785 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 5 remaining) [2024-09-23 23:23:58,349 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-09-23 23:23:58,351 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-23 23:23:58,351 INFO L312 ceAbstractionStarter]: Result for error location readerThread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE,SAFE (2/5) [2024-09-23 23:23:58,359 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:23:58,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 23:23:58,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 23:23:58,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 23:23:58,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2024-09-23 23:23:58,366 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 23:23:58,367 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writerThread1of1ForFork0 ======== [2024-09-23 23:23:58,367 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;@1592dd12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:23:58,367 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-23 23:23:58,420 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 23:23:58,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash -461686630, now seen corresponding path program 1 times [2024-09-23 23:23:58,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:58,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711441828] [2024-09-23 23:23:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:58,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:58,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711441828] [2024-09-23 23:23:58,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711441828] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:58,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:58,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-23 23:23:58,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29820355] [2024-09-23 23:23:58,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:58,440 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:58,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:58,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:58,441 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:58,441 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) [2024-09-23 23:23:58,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:59,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:59,207 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-09-23 23:23:59,243 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 23:23:59,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1785054630, now seen corresponding path program 1 times [2024-09-23 23:23:59,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:59,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707903353] [2024-09-23 23:23:59,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:59,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:59,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:59,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707903353] [2024-09-23 23:23:59,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707903353] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:59,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:59,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 23:23:59,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904092184] [2024-09-23 23:23:59,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:59,279 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:23:59,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:23:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:23:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:59,280 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:59,281 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:59,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:59,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:59,572 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-09-23 23:23:59,573 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 23:23:59,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:23:59,573 INFO L85 PathProgramCache]: Analyzing trace with hash -428460988, now seen corresponding path program 1 times [2024-09-23 23:23:59,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:23:59,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521919015] [2024-09-23 23:23:59,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:23:59,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:23:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:23:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:23:59,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:23:59,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521919015] [2024-09-23 23:23:59,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521919015] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:23:59,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:23:59,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-23 23:23:59,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166336581] [2024-09-23 23:23:59,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:23:59,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-23 23:23:59,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:23:59,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-23 23:23:59,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-23 23:23:59,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:23:59,637 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:23:59,637 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:23:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:59,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:23:59,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:24:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:24:00,060 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-09-23 23:24:00,061 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 23:24:00,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:24:00,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2101637153, now seen corresponding path program 1 times [2024-09-23 23:24:00,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:24:00,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145501078] [2024-09-23 23:24:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:24:00,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:24:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:24:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:24:00,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:24:00,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145501078] [2024-09-23 23:24:00,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145501078] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:24:00,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:24:00,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 23:24:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652942376] [2024-09-23 23:24:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:24:00,087 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:24:00,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:24:00,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:24:00,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:24:00,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:24:00,088 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:24:00,089 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:24:00,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:00,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:00,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:24:00,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:24:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-23 23:24:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:01,161 INFO L785 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-23 23:24:01,161 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-09-23 23:24:01,163 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-23 23:24:01,163 INFO L312 ceAbstractionStarter]: Result for error location writerThread1of1ForFork0 was SAFE (3/5) [2024-09-23 23:24:01,165 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:24:01,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 23:24:01,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 23:24:01,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 23:24:01,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2024-09-23 23:24:01,172 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 23:24:01,172 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-23 23:24:01,173 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;@1592dd12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:24:01,173 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-23 23:24:01,701 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2024-09-23 23:24:01,702 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-09-23 23:24:01,702 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-09-23 23:24:01,702 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-09-23 23:24:01,703 INFO L408 BasicCegarLoop]: Path program histogram: [] [2024-09-23 23:24:01,704 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE,SAFE (4/5) [2024-09-23 23:24:01,705 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:24:01,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-23 23:24:01,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-23 23:24:01,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-23 23:24:01,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2024-09-23 23:24:01,711 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-23 23:24:01,712 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writerThread1of1ForFork3 ======== [2024-09-23 23:24:01,712 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;@1592dd12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-23 23:24:01,712 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-23 23:24:01,770 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 23:24:01,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:24:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash 70489771, now seen corresponding path program 1 times [2024-09-23 23:24:01,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:24:01,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684015138] [2024-09-23 23:24:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:24:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:24:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:24:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:24:01,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:24:01,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684015138] [2024-09-23 23:24:01,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684015138] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:24:01,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:24:01,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-23 23:24:01,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752114078] [2024-09-23 23:24:01,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:24:01,796 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:24:01,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:24:01,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:24:01,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:24:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:24:01,799 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:24:01,799 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:24:01,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:24:01,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:01,833 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-09-23 23:24:01,834 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT] === [2024-09-23 23:24:01,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-23 23:24:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2082906645, now seen corresponding path program 1 times [2024-09-23 23:24:01,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-23 23:24:01,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551929350] [2024-09-23 23:24:01,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-23 23:24:01,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-23 23:24:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-23 23:24:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-23 23:24:01,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-23 23:24:01,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551929350] [2024-09-23 23:24:01,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551929350] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-23 23:24:01,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-23 23:24:01,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-23 23:24:01,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112135485] [2024-09-23 23:24:01,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-23 23:24:01,893 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-23 23:24:01,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-23 23:24:01,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-23 23:24:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-23 23:24:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:24:01,894 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-23 23:24:01,894 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-23 23:24:01,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:01,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-23 23:24:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-23 23:24:02,553 INFO L785 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 1 remaining) [2024-09-23 23:24:02,553 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-09-23 23:24:02,554 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-23 23:24:02,554 INFO L312 ceAbstractionStarter]: Result for error location writerThread1of1ForFork3 was SAFE (5/5) [2024-09-23 23:24:02,555 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-23 23:24:02,555 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-23 23:24:02,558 INFO L469 ceAbstractionStarter]: Automizer considered 6 witness invariants [2024-09-23 23:24:02,558 INFO L470 ceAbstractionStarter]: WitnessConsidered=6 [2024-09-23 23:24:02,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 11:24:02 BasicIcfg [2024-09-23 23:24:02,560 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-23 23:24:02,560 INFO L158 Benchmark]: Toolchain (without parser) took 9715.77ms. Allocated memory was 163.6MB in the beginning and 318.8MB in the end (delta: 155.2MB). Free memory was 102.8MB in the beginning and 117.2MB in the end (delta: -14.3MB). Peak memory consumption was 182.0MB. Max. memory is 16.1GB. [2024-09-23 23:24:02,560 INFO L158 Benchmark]: Witness Parser took 0.28ms. Allocated memory is still 94.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 23:24:02,560 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-23 23:24:02,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.75ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 120.6MB in the end (delta: -18.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-23 23:24:02,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.62ms. Allocated memory is still 163.6MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 23:24:02,561 INFO L158 Benchmark]: Boogie Preprocessor took 29.82ms. Allocated memory is still 163.6MB. Free memory was 118.5MB in the beginning and 117.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-23 23:24:02,561 INFO L158 Benchmark]: RCFGBuilder took 545.63ms. Allocated memory is still 163.6MB. Free memory was 117.4MB in the beginning and 85.0MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-09-23 23:24:02,562 INFO L158 Benchmark]: TraceAbstraction took 8438.03ms. Allocated memory was 163.6MB in the beginning and 318.8MB in the end (delta: 155.2MB). Free memory was 83.8MB in the beginning and 117.2MB in the end (delta: -33.3MB). Peak memory consumption was 164.7MB. Max. memory is 16.1GB. [2024-09-23 23:24:02,563 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 0.28ms. Allocated memory is still 94.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.75ms. Allocated memory is still 163.6MB. Free memory was 102.4MB in the beginning and 120.6MB in the end (delta: -18.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.62ms. Allocated memory is still 163.6MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.82ms. Allocated memory is still 163.6MB. Free memory was 118.5MB in the beginning and 117.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.63ms. Allocated memory is still 163.6MB. Free memory was 117.4MB in the beginning and 85.0MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8438.03ms. Allocated memory was 163.6MB in the beginning and 318.8MB in the end (delta: 155.2MB). Free memory was 83.8MB in the beginning and 117.2MB in the end (delta: -33.3MB). Peak memory consumption was 164.7MB. 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: 9532, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 450, dependent conditional: 383, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9195, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 113, dependent conditional: 46, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9195, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 113, dependent conditional: 46, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9471, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 389, dependent conditional: 322, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9471, independent: 9082, independent conditional: 60, independent unconditional: 9022, dependent: 389, dependent conditional: 125, dependent unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9471, independent: 9082, independent conditional: 60, independent unconditional: 9022, dependent: 389, dependent conditional: 125, dependent unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2557, independent: 2457, independent conditional: 15, independent unconditional: 2442, dependent: 100, dependent conditional: 30, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2557, independent: 2385, independent conditional: 0, independent unconditional: 2385, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 172, independent: 72, independent conditional: 15, independent unconditional: 57, dependent: 100, dependent conditional: 30, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 172, independent: 72, independent conditional: 15, independent unconditional: 57, dependent: 100, dependent conditional: 30, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 393, independent: 189, independent conditional: 30, independent unconditional: 159, dependent: 204, dependent conditional: 54, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9471, independent: 6625, independent conditional: 45, independent unconditional: 6580, dependent: 289, dependent conditional: 95, dependent unconditional: 194, unknown: 2557, unknown conditional: 45, unknown unconditional: 2512] , Statistics on independence cache: Total cache size (in pairs): 2557, Positive cache size: 2457, Positive conditional cache size: 15, Positive unconditional cache size: 2442, Negative cache size: 100, Negative conditional cache size: 30, Negative unconditional cache size: 70, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6780, Maximal queried relation: 5, Independence queries for same thread: 337, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 545, Number of trivial persistent sets: 161, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2506, independent: 2439, independent conditional: 0, independent unconditional: 2439, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9532, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 450, dependent conditional: 383, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9195, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 113, dependent conditional: 46, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9195, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 113, dependent conditional: 46, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9471, independent: 9082, independent conditional: 6643, independent unconditional: 2439, dependent: 389, dependent conditional: 322, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9471, independent: 9082, independent conditional: 60, independent unconditional: 9022, dependent: 389, dependent conditional: 125, dependent unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9471, independent: 9082, independent conditional: 60, independent unconditional: 9022, dependent: 389, dependent conditional: 125, dependent unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2557, independent: 2457, independent conditional: 15, independent unconditional: 2442, dependent: 100, dependent conditional: 30, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2557, independent: 2385, independent conditional: 0, independent unconditional: 2385, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 172, independent: 72, independent conditional: 15, independent unconditional: 57, dependent: 100, dependent conditional: 30, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 172, independent: 72, independent conditional: 15, independent unconditional: 57, dependent: 100, dependent conditional: 30, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 393, independent: 189, independent conditional: 30, independent unconditional: 159, dependent: 204, dependent conditional: 54, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 9471, independent: 6625, independent conditional: 45, independent unconditional: 6580, dependent: 289, dependent conditional: 95, dependent unconditional: 194, unknown: 2557, unknown conditional: 45, unknown unconditional: 2512] , Statistics on independence cache: Total cache size (in pairs): 2557, Positive cache size: 2457, Positive conditional cache size: 15, Positive unconditional cache size: 2442, Negative cache size: 100, Negative conditional cache size: 30, Negative unconditional cache size: 70, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6780, Maximal queried relation: 5, Independence queries for same thread: 337 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12819, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 471, dependent conditional: 403, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12466, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 118, dependent conditional: 50, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12466, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 118, dependent conditional: 50, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12703, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 355, dependent conditional: 287, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12703, independent: 12348, independent conditional: 50, independent unconditional: 12298, dependent: 355, dependent conditional: 114, dependent unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12703, independent: 12348, independent conditional: 50, independent unconditional: 12298, dependent: 355, dependent conditional: 114, dependent unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2647, independent: 2546, independent conditional: 14, independent unconditional: 2532, dependent: 101, dependent conditional: 30, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2647, independent: 2475, independent conditional: 0, independent unconditional: 2475, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 172, independent: 71, independent conditional: 14, independent unconditional: 57, dependent: 101, dependent conditional: 30, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 172, independent: 71, independent conditional: 14, independent unconditional: 57, dependent: 101, dependent conditional: 30, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 248, independent: 118, independent conditional: 18, independent unconditional: 100, dependent: 129, dependent conditional: 40, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 12703, independent: 9802, independent conditional: 36, independent unconditional: 9766, dependent: 254, dependent conditional: 84, dependent unconditional: 170, unknown: 2647, unknown conditional: 44, unknown unconditional: 2603] , Statistics on independence cache: Total cache size (in pairs): 2647, Positive cache size: 2546, Positive conditional cache size: 14, Positive unconditional cache size: 2532, Negative cache size: 101, Negative conditional cache size: 30, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9942, Maximal queried relation: 5, Independence queries for same thread: 353, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 1259, Number of trivial persistent sets: 511, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2597, independent: 2529, independent conditional: 0, independent unconditional: 2529, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12819, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 471, dependent conditional: 403, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12466, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 118, dependent conditional: 50, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 12466, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 118, dependent conditional: 50, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12703, independent: 12348, independent conditional: 9819, independent unconditional: 2529, dependent: 355, dependent conditional: 287, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 12703, independent: 12348, independent conditional: 50, independent unconditional: 12298, dependent: 355, dependent conditional: 114, dependent unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 12703, independent: 12348, independent conditional: 50, independent unconditional: 12298, dependent: 355, dependent conditional: 114, dependent unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2647, independent: 2546, independent conditional: 14, independent unconditional: 2532, dependent: 101, dependent conditional: 30, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2647, independent: 2475, independent conditional: 0, independent unconditional: 2475, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 172, independent: 71, independent conditional: 14, independent unconditional: 57, dependent: 101, dependent conditional: 30, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 172, independent: 71, independent conditional: 14, independent unconditional: 57, dependent: 101, dependent conditional: 30, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 248, independent: 118, independent conditional: 18, independent unconditional: 100, dependent: 129, dependent conditional: 40, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 12703, independent: 9802, independent conditional: 36, independent unconditional: 9766, dependent: 254, dependent conditional: 84, dependent unconditional: 170, unknown: 2647, unknown conditional: 44, unknown unconditional: 2603] , Statistics on independence cache: Total cache size (in pairs): 2647, Positive cache size: 2546, Positive conditional cache size: 14, Positive unconditional cache size: 2532, Negative cache size: 101, Negative conditional cache size: 30, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9942, Maximal queried relation: 5, Independence queries for same thread: 353 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 155272, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 7926, dependent conditional: 7861, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149278, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 1932, dependent conditional: 1867, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 149278, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 1932, dependent conditional: 1867, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 153610, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 6264, dependent conditional: 6199, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 153610, independent: 147346, independent conditional: 1749, independent unconditional: 145597, dependent: 6264, dependent conditional: 1349, dependent unconditional: 4915, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153610, independent: 147346, independent conditional: 1749, independent unconditional: 145597, dependent: 6264, dependent conditional: 1349, dependent unconditional: 4915, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2734, independent: 2607, independent conditional: 29, independent unconditional: 2578, dependent: 127, dependent conditional: 57, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2734, independent: 2520, independent conditional: 0, independent unconditional: 2520, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 214, independent: 87, independent conditional: 29, independent unconditional: 58, dependent: 127, dependent conditional: 57, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 214, independent: 87, independent conditional: 29, independent unconditional: 58, dependent: 127, dependent conditional: 57, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 310, independent: 130, independent conditional: 32, independent unconditional: 97, dependent: 180, dependent conditional: 85, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 153610, independent: 144739, independent conditional: 1720, independent unconditional: 143019, dependent: 6137, dependent conditional: 1292, dependent unconditional: 4845, unknown: 2734, unknown conditional: 86, unknown unconditional: 2648] , Statistics on independence cache: Total cache size (in pairs): 2734, Positive cache size: 2607, Positive conditional cache size: 29, Positive unconditional cache size: 2578, Negative cache size: 127, Negative conditional cache size: 57, Negative unconditional cache size: 70, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 147873, Maximal queried relation: 3, Independence queries for same thread: 5994, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 4451, Number of trivial persistent sets: 435, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2639, independent: 2574, independent conditional: 0, independent unconditional: 2574, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 155272, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 7926, dependent conditional: 7861, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 149278, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 1932, dependent conditional: 1867, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 149278, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 1932, dependent conditional: 1867, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 153610, independent: 147346, independent conditional: 144772, independent unconditional: 2574, dependent: 6264, dependent conditional: 6199, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 153610, independent: 147346, independent conditional: 1749, independent unconditional: 145597, dependent: 6264, dependent conditional: 1349, dependent unconditional: 4915, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153610, independent: 147346, independent conditional: 1749, independent unconditional: 145597, dependent: 6264, dependent conditional: 1349, dependent unconditional: 4915, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2734, independent: 2607, independent conditional: 29, independent unconditional: 2578, dependent: 127, dependent conditional: 57, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2734, independent: 2520, independent conditional: 0, independent unconditional: 2520, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 214, independent: 87, independent conditional: 29, independent unconditional: 58, dependent: 127, dependent conditional: 57, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 214, independent: 87, independent conditional: 29, independent unconditional: 58, dependent: 127, dependent conditional: 57, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 310, independent: 130, independent conditional: 32, independent unconditional: 97, dependent: 180, dependent conditional: 85, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 153610, independent: 144739, independent conditional: 1720, independent unconditional: 143019, dependent: 6137, dependent conditional: 1292, dependent unconditional: 4845, unknown: 2734, unknown conditional: 86, unknown unconditional: 2648] , Statistics on independence cache: Total cache size (in pairs): 2734, Positive cache size: 2607, Positive conditional cache size: 29, Positive unconditional cache size: 2578, Negative cache size: 127, Negative conditional cache size: 57, Negative unconditional cache size: 70, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 147873, Maximal queried relation: 3, Independence queries for same thread: 5994 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11880, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 622, dependent conditional: 577, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 203, dependent conditional: 158, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 203, dependent conditional: 158, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 203, dependent conditional: 158, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 0, independent unconditional: 11258, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 0, independent unconditional: 11258, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2209, independent: 2162, independent conditional: 0, independent unconditional: 2162, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2209, independent: 2122, independent conditional: 0, independent unconditional: 2122, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 87, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 87, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, independent: 71, independent conditional: 0, independent unconditional: 71, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11461, independent: 9096, independent conditional: 0, independent unconditional: 9096, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 2209, unknown conditional: 0, unknown unconditional: 2209] , Statistics on independence cache: Total cache size (in pairs): 2209, Positive cache size: 2162, Positive conditional cache size: 0, Positive unconditional cache size: 2162, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9258, Maximal queried relation: 0, Independence queries for same thread: 419, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 3080, Number of trivial persistent sets: 3080, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2203, independent: 2158, independent conditional: 0, independent unconditional: 2158, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11880, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 622, dependent conditional: 577, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 203, dependent conditional: 158, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 203, dependent conditional: 158, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 9100, independent unconditional: 2158, dependent: 203, dependent conditional: 158, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 0, independent unconditional: 11258, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11461, independent: 11258, independent conditional: 0, independent unconditional: 11258, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2209, independent: 2162, independent conditional: 0, independent unconditional: 2162, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2209, independent: 2122, independent conditional: 0, independent unconditional: 2122, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 87, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 87, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, independent: 71, independent conditional: 0, independent unconditional: 71, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 11461, independent: 9096, independent conditional: 0, independent unconditional: 9096, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 2209, unknown conditional: 0, unknown unconditional: 2209] , Statistics on independence cache: Total cache size (in pairs): 2209, Positive cache size: 2162, Positive conditional cache size: 0, Positive unconditional cache size: 2162, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9258, Maximal queried relation: 0, Independence queries for same thread: 419 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18210, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 911, dependent conditional: 847, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17536, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 237, dependent conditional: 173, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 17536, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 237, dependent conditional: 173, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17761, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 462, dependent conditional: 398, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17761, independent: 17299, independent conditional: 20, independent unconditional: 17279, dependent: 462, dependent conditional: 64, dependent unconditional: 398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17761, independent: 17299, independent conditional: 20, independent unconditional: 17279, dependent: 462, dependent conditional: 64, dependent unconditional: 398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2717, independent: 2634, independent conditional: 5, independent unconditional: 2629, dependent: 83, dependent conditional: 16, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2717, independent: 2572, independent conditional: 0, independent unconditional: 2572, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 145, independent: 62, independent conditional: 5, independent unconditional: 57, dependent: 83, dependent conditional: 16, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 145, independent: 62, independent conditional: 5, independent unconditional: 57, dependent: 83, dependent conditional: 16, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 181, independent: 89, independent conditional: 5, independent unconditional: 84, dependent: 92, dependent conditional: 19, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 17761, independent: 14665, independent conditional: 15, independent unconditional: 14650, dependent: 379, dependent conditional: 48, dependent unconditional: 331, unknown: 2717, unknown conditional: 21, unknown unconditional: 2696] , Statistics on independence cache: Total cache size (in pairs): 2717, Positive cache size: 2634, Positive conditional cache size: 5, Positive unconditional cache size: 2629, Negative cache size: 83, Negative conditional cache size: 16, Negative unconditional cache size: 67, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14987, Maximal queried relation: 2, Independence queries for same thread: 674, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 2047, Number of trivial persistent sets: 365, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2690, independent: 2626, independent conditional: 0, independent unconditional: 2626, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18210, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 911, dependent conditional: 847, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17536, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 237, dependent conditional: 173, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 17536, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 237, dependent conditional: 173, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17761, independent: 17299, independent conditional: 14673, independent unconditional: 2626, dependent: 462, dependent conditional: 398, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17761, independent: 17299, independent conditional: 20, independent unconditional: 17279, dependent: 462, dependent conditional: 64, dependent unconditional: 398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17761, independent: 17299, independent conditional: 20, independent unconditional: 17279, dependent: 462, dependent conditional: 64, dependent unconditional: 398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2717, independent: 2634, independent conditional: 5, independent unconditional: 2629, dependent: 83, dependent conditional: 16, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2717, independent: 2572, independent conditional: 0, independent unconditional: 2572, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 145, independent: 62, independent conditional: 5, independent unconditional: 57, dependent: 83, dependent conditional: 16, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 145, independent: 62, independent conditional: 5, independent unconditional: 57, dependent: 83, dependent conditional: 16, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 181, independent: 89, independent conditional: 5, independent unconditional: 84, dependent: 92, dependent conditional: 19, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 17761, independent: 14665, independent conditional: 15, independent unconditional: 14650, dependent: 379, dependent conditional: 48, dependent unconditional: 331, unknown: 2717, unknown conditional: 21, unknown unconditional: 2696] , Statistics on independence cache: Total cache size (in pairs): 2717, Positive cache size: 2634, Positive conditional cache size: 5, Positive unconditional cache size: 2629, Negative cache size: 83, Negative conditional cache size: 16, Negative unconditional cache size: 67, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14987, Maximal queried relation: 2, Independence queries for same thread: 674 - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: 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: readerThread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 97 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 24, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: readerThread1of1ForFork1 with 1 thread instances CFG has 7 procedures, 97 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.2s, 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: 21, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: writerThread1of1ForFork0 with 1 thread instances CFG has 7 procedures, 97 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 97 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.5s, 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: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: writerThread1of1ForFork3 with 1 thread instances CFG has 7 procedures, 97 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.7s, 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: 6, 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-23 23:24:02,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Ended with exit code 0 [2024-09-23 23:24:02,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Ended with exit code 0 [2024-09-23 23:24:03,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2024-09-23 23:24:03,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2024-09-23 23:24:03,408 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 [2024-09-23 23:24:03,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE