./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking NONE -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 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/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking NONE -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-16 21:34:05,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-16 21:34:05,406 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-16 21:34:05,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-16 21:34:05,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-16 21:34:05,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-16 21:34:05,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-16 21:34:05,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-16 21:34:05,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-16 21:34:05,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-16 21:34:05,434 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-16 21:34:05,434 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-16 21:34:05,434 INFO L153 SettingsManager]: * Use SBE=true [2024-10-16 21:34:05,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-16 21:34:05,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-16 21:34:05,435 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-16 21:34:05,435 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-16 21:34:05,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-16 21:34:05,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-16 21:34:05,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-16 21:34:05,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-16 21:34:05,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-16 21:34:05,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-16 21:34:05,437 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-16 21:34:05,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-16 21:34:05,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-16 21:34:05,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-16 21:34:05,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-16 21:34:05,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-16 21:34:05,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-16 21:34:05,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 21:34:05,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-16 21:34:05,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-16 21:34:05,439 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-16 21:34:05,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-16 21:34:05,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-16 21:34:05,440 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-16 21:34:05,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-16 21:34:05,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-16 21:34:05,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-16 21:34:05,441 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-16 21:34:05,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> NONE [2024-10-16 21:34:05,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-16 21:34:05,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-16 21:34:05,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-16 21:34:05,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-16 21:34:05,657 INFO L274 PluginConnector]: CDTParser initialized [2024-10-16 21:34:05,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2024-10-16 21:34:06,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-16 21:34:07,059 INFO L384 CDTParser]: Found 1 translation units. [2024-10-16 21:34:07,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2024-10-16 21:34:07,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/099e79a8e/2d5afc5ec63a4f689ce2b5ac3b7394ec/FLAGb934af873 [2024-10-16 21:34:07,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/099e79a8e/2d5afc5ec63a4f689ce2b5ac3b7394ec [2024-10-16 21:34:07,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-16 21:34:07,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-16 21:34:07,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-16 21:34:07,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-16 21:34:07,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-16 21:34:07,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cf582c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07, skipping insertion in model container [2024-10-16 21:34:07,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,480 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-16 21:34:07,617 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2024-10-16 21:34:07,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 21:34:07,745 INFO L200 MainTranslator]: Completed pre-run [2024-10-16 21:34:07,754 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2024-10-16 21:34:07,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 21:34:07,815 INFO L204 MainTranslator]: Completed translation [2024-10-16 21:34:07,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07 WrapperNode [2024-10-16 21:34:07,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-16 21:34:07,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-16 21:34:07,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-16 21:34:07,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-16 21:34:07,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,851 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-10-16 21:34:07,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-16 21:34:07,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-16 21:34:07,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-16 21:34:07,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-16 21:34:07,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-16 21:34:07,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-16 21:34:07,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-16 21:34:07,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-16 21:34:07,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (1/1) ... [2024-10-16 21:34:07,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 21:34:07,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 21:34:07,908 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) [2024-10-16 21:34:07,911 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 [2024-10-16 21:34:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-16 21:34:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-16 21:34:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-16 21:34:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-16 21:34:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-16 21:34:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-16 21:34:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-16 21:34:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-16 21:34:07,950 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-16 21:34:08,058 INFO L238 CfgBuilder]: Building ICFG [2024-10-16 21:34:08,060 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-16 21:34:08,215 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-16 21:34:08,216 INFO L287 CfgBuilder]: Performing block encoding [2024-10-16 21:34:08,341 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-16 21:34:08,341 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-16 21:34:08,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:34:08 BoogieIcfgContainer [2024-10-16 21:34:08,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-16 21:34:08,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-16 21:34:08,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-16 21:34:08,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-16 21:34:08,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:34:07" (1/3) ... [2024-10-16 21:34:08,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652c7074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:34:08, skipping insertion in model container [2024-10-16 21:34:08,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:34:07" (2/3) ... [2024-10-16 21:34:08,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652c7074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:34:08, skipping insertion in model container [2024-10-16 21:34:08,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:34:08" (3/3) ... [2024-10-16 21:34:08,351 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2024-10-16 21:34:08,363 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-16 21:34:08,363 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-16 21:34:08,364 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-16 21:34:08,389 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-16 21:34:08,419 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-16 21:34:08,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-16 21:34:08,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 21:34:08,422 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) [2024-10-16 21:34:08,423 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 [2024-10-16 21:34:08,499 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-16 21:34:08,510 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-16 21:34:08,517 INFO L333 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=LoopHeads, 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;@134dbc7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=NONE, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-16 21:34:08,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-16 21:34:08,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 21:34:08,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 21:34:08,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1813828078, now seen corresponding path program 1 times [2024-10-16 21:34:08,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 21:34:08,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588280014] [2024-10-16 21:34:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 21:34:08,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 21:34:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 21:34:09,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 21:34:09,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 21:34:09,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588280014] [2024-10-16 21:34:09,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588280014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 21:34:09,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 21:34:09,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-16 21:34:09,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682383028] [2024-10-16 21:34:09,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 21:34:09,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-16 21:34:09,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 21:34:09,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-16 21:34:09,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-16 21:34:09,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 21:34:09,219 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 21:34:09,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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) [2024-10-16 21:34:09,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 21:34:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 21:34:09,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-16 21:34:09,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 21:34:09,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 21:34:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1506691641, now seen corresponding path program 1 times [2024-10-16 21:34:09,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 21:34:09,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82844355] [2024-10-16 21:34:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 21:34:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 21:34:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 21:34:09,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 21:34:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 21:34:09,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-16 21:34:09,345 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-16 21:34:09,347 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-16 21:34:09,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-10-16 21:34:09,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-16 21:34:09,356 INFO L414 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-16 21:34:09,383 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-16 21:34:09,383 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-16 21:34:09,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 09:34:09 BasicIcfg [2024-10-16 21:34:09,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-16 21:34:09,386 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-16 21:34:09,386 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-16 21:34:09,386 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-16 21:34:09,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:34:08" (3/4) ... [2024-10-16 21:34:09,388 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-16 21:34:09,427 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-16 21:34:09,429 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-16 21:34:09,430 INFO L158 Benchmark]: Toolchain (without parser) took 1985.31ms. Allocated memory is still 165.7MB. Free memory was 125.8MB in the beginning and 91.8MB in the end (delta: 34.0MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-10-16 21:34:09,430 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-16 21:34:09,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.86ms. Allocated memory is still 165.7MB. Free memory was 125.8MB in the beginning and 104.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-16 21:34:09,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.50ms. Allocated memory is still 165.7MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 21:34:09,431 INFO L158 Benchmark]: Boogie Preprocessor took 23.40ms. Allocated memory is still 165.7MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 21:34:09,431 INFO L158 Benchmark]: RCFGBuilder took 465.04ms. Allocated memory is still 165.7MB. Free memory was 100.6MB in the beginning and 75.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-16 21:34:09,431 INFO L158 Benchmark]: TraceAbstraction took 1041.65ms. Allocated memory is still 165.7MB. Free memory was 74.1MB in the beginning and 95.3MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-16 21:34:09,431 INFO L158 Benchmark]: Witness Printer took 43.40ms. Allocated memory is still 165.7MB. Free memory was 95.3MB in the beginning and 91.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 21:34:09,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.86ms. Allocated memory is still 165.7MB. Free memory was 125.8MB in the beginning and 104.1MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.50ms. Allocated memory is still 165.7MB. Free memory was 104.1MB in the beginning and 102.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.40ms. Allocated memory is still 165.7MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.04ms. Allocated memory is still 165.7MB. Free memory was 100.6MB in the beginning and 75.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1041.65ms. Allocated memory is still 165.7MB. Free memory was 74.1MB in the beginning and 95.3MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.40ms. Allocated memory is still 165.7MB. Free memory was 95.3MB in the beginning and 91.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. 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: 140, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 138, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 138, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 143, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 143, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18 ], Independence queries for same thread: 2, Persistent sets #1 benchmarks: Persistent set computation time: 0.3s, Number of persistent set computation: 24, Number of trivial persistent sets: 24, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 140, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 138, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 138, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 138, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 143, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 18, independent unconditional: 115, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 143, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 120, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 120, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 249, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 143, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18 ], Independence queries for same thread: 2 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, g=42, id=-1, r=1] [L688] 1 g = 42 VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, arg={0:0}, g=42] [L691] 1 return ((void *)0); [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, g=17, id=-1, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, \old(cond)=0, \result={0:0}, arg={0:0}, cond=0, g=17] [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(arg)={0:0}, \old(cond)=0, \result={0:0}, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 43 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, 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: 4, 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, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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, ConComCheckerStatistics: ConditionalCommutativityOverallTime: 0.0s, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2024-10-16 21:34:09,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-16 21:34:09,658 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE