./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 559b036c 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/pthread-ext/40_barrier_vf.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 5eef73b6b2655059556d731e3a5babc181132142f2417a2cf863165dd8efda84 --- Real Ultimate output --- This is Ultimate 0.2.3-?-559b036-m [2023-11-23 02:47:29,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 02:47:29,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 02:47:29,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 02:47:29,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 02:47:29,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 02:47:29,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 02:47:29,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 02:47:29,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 02:47:29,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 02:47:29,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 02:47:29,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 02:47:29,791 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 02:47:29,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 02:47:29,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 02:47:29,793 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 02:47:29,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 02:47:29,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 02:47:29,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 02:47:29,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 02:47:29,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 02:47:29,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 02:47:29,794 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 02:47:29,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 02:47:29,795 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 02:47:29,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 02:47:29,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 02:47:29,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 02:47:29,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 02:47:29,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 02:47:29,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 02:47:29,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 02:47:29,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 02:47:29,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 02:47:29,798 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 02:47:29,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 02:47:29,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 02:47:29,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 02:47:29,798 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 02:47:29,798 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 02:47:29,799 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 02:47:29,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eef73b6b2655059556d731e3a5babc181132142f2417a2cf863165dd8efda84 [2023-11-23 02:47:30,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 02:47:30,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 02:47:30,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 02:47:30,048 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 02:47:30,049 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 02:47:30,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2023-11-23 02:47:31,147 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 02:47:31,366 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 02:47:31,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i [2023-11-23 02:47:31,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ee963e899/2c90fd06129b40b1bec356beeb462348/FLAG1a306278f [2023-11-23 02:47:31,396 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ee963e899/2c90fd06129b40b1bec356beeb462348 [2023-11-23 02:47:31,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 02:47:31,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 02:47:31,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 02:47:31,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 02:47:31,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 02:47:31,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641d9c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31, skipping insertion in model container [2023-11-23 02:47:31,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,449 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 02:47:31,745 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i[31163,31176] [2023-11-23 02:47:31,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 02:47:31,760 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 02:47:31,799 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/40_barrier_vf.i[31163,31176] [2023-11-23 02:47:31,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 02:47:31,824 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 02:47:31,824 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 02:47:31,830 INFO L206 MainTranslator]: Completed translation [2023-11-23 02:47:31,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31 WrapperNode [2023-11-23 02:47:31,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 02:47:31,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 02:47:31,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 02:47:31,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 02:47:31,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,863 INFO L138 Inliner]: procedures = 173, calls = 24, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 77 [2023-11-23 02:47:31,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 02:47:31,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 02:47:31,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 02:47:31,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 02:47:31,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 02:47:31,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 02:47:31,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 02:47:31,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 02:47:31,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (1/1) ... [2023-11-23 02:47:31,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 02:47:31,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:31,990 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) [2023-11-23 02:47:32,008 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 [2023-11-23 02:47:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-23 02:47:32,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-23 02:47:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 02:47:32,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 02:47:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 02:47:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 02:47:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 02:47:32,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 02:47:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 02:47:32,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 02:47:32,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 02:47:32,046 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 02:47:32,173 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 02:47:32,176 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 02:47:32,338 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 02:47:32,409 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 02:47:32,409 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 02:47:32,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:32 BoogieIcfgContainer [2023-11-23 02:47:32,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 02:47:32,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 02:47:32,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 02:47:32,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 02:47:32,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:47:31" (1/3) ... [2023-11-23 02:47:32,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3f8014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:32, skipping insertion in model container [2023-11-23 02:47:32,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:47:31" (2/3) ... [2023-11-23 02:47:32,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3f8014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:47:32, skipping insertion in model container [2023-11-23 02:47:32,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:32" (3/3) ... [2023-11-23 02:47:32,416 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2023-11-23 02:47:32,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 02:47:32,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 02:47:32,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 02:47:32,429 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 02:47:32,464 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 02:47:32,500 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:32,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 02:47:32,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:32,502 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) [2023-11-23 02:47:32,505 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 [2023-11-23 02:47:32,528 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 02:47:32,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2023-11-23 02:47:32,542 INFO L357 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, mHoare=true, 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;@1038d0ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:32,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 02:47:32,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 02:47:32,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:32,594 INFO L85 PathProgramCache]: Analyzing trace with hash 341428569, now seen corresponding path program 1 times [2023-11-23 02:47:32,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:32,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946729101] [2023-11-23 02:47:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:32,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:32,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:32,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946729101] [2023-11-23 02:47:32,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946729101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:32,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:32,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 02:47:32,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601726002] [2023-11-23 02:47:32,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:32,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 02:47:32,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:32,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 02:47:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 02:47:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:32,931 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:32,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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) [2023-11-23 02:47:32,932 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:32,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 02:47:32,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 02:47:32,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:32,957 INFO L85 PathProgramCache]: Analyzing trace with hash 60273270, now seen corresponding path program 1 times [2023-11-23 02:47:32,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:32,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417050665] [2023-11-23 02:47:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:32,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:33,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:33,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:33,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417050665] [2023-11-23 02:47:33,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417050665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:33,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:33,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 02:47:33,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058387756] [2023-11-23 02:47:33,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:33,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 02:47:33,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:33,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 02:47:33,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 02:47:33,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,052 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:33,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 02:47:33,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:33,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:33,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:33,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 02:47:33,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 02:47:33,071 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 02:47:33,072 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2023-11-23 02:47:33,075 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:33,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 02:47:33,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:33,149 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) [2023-11-23 02:47:33,152 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 [2023-11-23 02:47:33,156 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 02:47:33,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 02:47:33,183 INFO L357 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, mHoare=true, 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;@1038d0ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:33,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 02:47:33,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:33,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1016154960, now seen corresponding path program 1 times [2023-11-23 02:47:33,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:33,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198444502] [2023-11-23 02:47:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:33,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:33,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198444502] [2023-11-23 02:47:33,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198444502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 02:47:33,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46693185] [2023-11-23 02:47:33,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:33,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 02:47:33,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 02:47:33,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 02:47:33,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,339 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:33,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) 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) [2023-11-23 02:47:33,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:33,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 02:47:33,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:33,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:33,380 INFO L85 PathProgramCache]: Analyzing trace with hash 304869651, now seen corresponding path program 1 times [2023-11-23 02:47:33,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:33,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004047069] [2023-11-23 02:47:33,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:33,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:33,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:33,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:33,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004047069] [2023-11-23 02:47:33,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004047069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:33,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:33,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 02:47:33,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694381853] [2023-11-23 02:47:33,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:33,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 02:47:33,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 02:47:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 02:47:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,472 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:33,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2023-11-23 02:47:33,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:33,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:33,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 02:47:33,489 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:33,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2090157492, now seen corresponding path program 1 times [2023-11-23 02:47:33,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:33,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054161693] [2023-11-23 02:47:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 02:47:33,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 02:47:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 02:47:33,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 02:47:33,531 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 02:47:33,531 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-11-23 02:47:33,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 02:47:33,532 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 02:47:33,533 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2023-11-23 02:47:33,533 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 02:47:33,533 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-23 02:47:33,543 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 02:47:33,544 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:33,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 02:47:33,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:33,546 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) [2023-11-23 02:47:33,550 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 02:47:33,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 02:47:33,551 INFO L357 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, mHoare=true, 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;@1038d0ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:33,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 02:47:33,565 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 [2023-11-23 02:47:33,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:33,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:33,624 INFO L85 PathProgramCache]: Analyzing trace with hash -644485196, now seen corresponding path program 1 times [2023-11-23 02:47:33,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:33,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006392171] [2023-11-23 02:47:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:33,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 02:47:33,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:33,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006392171] [2023-11-23 02:47:33,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006392171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:33,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:33,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 02:47:33,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939784296] [2023-11-23 02:47:33,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:33,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 02:47:33,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 02:47:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 02:47:33,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,740 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:33,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 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) [2023-11-23 02:47:33,740 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:33,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 02:47:33,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:33,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2003630711, now seen corresponding path program 1 times [2023-11-23 02:47:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:33,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708907970] [2023-11-23 02:47:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:33,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:33,961 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 02:47:33,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:33,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708907970] [2023-11-23 02:47:33,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708907970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:33,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:33,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 02:47:33,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722778279] [2023-11-23 02:47:33,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:33,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 02:47:33,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:33,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 02:47:33,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 02:47:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:33,965 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:33,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 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) [2023-11-23 02:47:33,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:33,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:34,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:34,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 02:47:34,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:34,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash -218090889, now seen corresponding path program 2 times [2023-11-23 02:47:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376324372] [2023-11-23 02:47:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:34,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:34,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376324372] [2023-11-23 02:47:34,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376324372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 02:47:34,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726879570] [2023-11-23 02:47:34,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 02:47:34,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 02:47:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:34,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 02:47:34,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 02:47:34,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 02:47:34,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 02:47:34,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 02:47:34,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 02:47:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 02:47:34,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 02:47:34,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726879570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:34,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 02:47:34,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-23 02:47:34,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126687049] [2023-11-23 02:47:34,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:34,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 02:47:34,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:34,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 02:47:34,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 02:47:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:34,229 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:34,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 02:47:34,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:34,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 02:47:34,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 02:47:34,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:34,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 51826615, now seen corresponding path program 3 times [2023-11-23 02:47:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:34,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082954275] [2023-11-23 02:47:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:34,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:34,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:34,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082954275] [2023-11-23 02:47:34,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082954275] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 02:47:34,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42799200] [2023-11-23 02:47:34,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 02:47:34,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 02:47:34,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:34,551 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 02:47:34,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 02:47:34,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-23 02:47:34,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 02:47:34,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 02:47:34,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 02:47:34,661 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:34,661 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 02:47:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:34,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42799200] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 02:47:34,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 02:47:34,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-23 02:47:34,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720856619] [2023-11-23 02:47:34,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 02:47:34,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 02:47:34,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:34,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 02:47:34,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-23 02:47:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:34,704 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:34,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 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) [2023-11-23 02:47:34,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:34,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 02:47:34,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-23 02:47:34,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 02:47:34,965 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:47:34,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:34,966 INFO L85 PathProgramCache]: Analyzing trace with hash 378810044, now seen corresponding path program 1 times [2023-11-23 02:47:34,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:34,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984425886] [2023-11-23 02:47:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:34,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 02:47:34,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 02:47:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 02:47:35,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 02:47:35,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 02:47:35,018 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-11-23 02:47:35,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 02:47:35,020 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2023-11-23 02:47:35,021 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2023-11-23 02:47:35,021 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 02:47:35,021 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-23 02:47:35,041 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 02:47:35,045 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:35,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 02:47:35,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:35,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 02:47:35,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2023-11-23 02:47:35,074 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 02:47:35,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2023-11-23 02:47:35,075 INFO L357 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, mHoare=true, 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;@1038d0ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:47:35,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 02:47:35,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 02:47:35,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:35,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1917677303, now seen corresponding path program 1 times [2023-11-23 02:47:35,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:35,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482050023] [2023-11-23 02:47:35,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:35,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 02:47:35,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:35,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482050023] [2023-11-23 02:47:35,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482050023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:35,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:35,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 02:47:35,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11677193] [2023-11-23 02:47:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:35,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 02:47:35,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:35,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 02:47:35,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 02:47:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:35,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:35,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-23 02:47:35,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:35,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 02:47:35,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 02:47:35,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash 116782371, now seen corresponding path program 1 times [2023-11-23 02:47:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:35,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740318824] [2023-11-23 02:47:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 02:47:35,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:35,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740318824] [2023-11-23 02:47:35,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740318824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:35,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:47:35,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 02:47:35,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365416068] [2023-11-23 02:47:35,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:35,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 02:47:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 02:47:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 02:47:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:35,368 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:35,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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) [2023-11-23 02:47:35,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:35,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:35,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 02:47:35,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 02:47:35,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:35,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1475871938, now seen corresponding path program 1 times [2023-11-23 02:47:35,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:35,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402698125] [2023-11-23 02:47:35,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:35,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:35,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402698125] [2023-11-23 02:47:35,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402698125] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 02:47:35,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739164329] [2023-11-23 02:47:35,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:35,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 02:47:35,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:35,578 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 02:47:35,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 02:47:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:35,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 02:47:35,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 02:47:35,665 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 02:47:35,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 02:47:35,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739164329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:47:35,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 02:47:35,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-23 02:47:35,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192638603] [2023-11-23 02:47:35,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:47:35,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 02:47:35,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:35,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 02:47:35,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 02:47:35,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:35,671 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:35,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-23 02:47:35,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:35,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:35,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:35,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:35,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 02:47:35,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 02:47:35,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 02:47:35,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:35,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1974405059, now seen corresponding path program 2 times [2023-11-23 02:47:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:35,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605091411] [2023-11-23 02:47:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:47:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:36,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:47:36,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605091411] [2023-11-23 02:47:36,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605091411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 02:47:36,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067590214] [2023-11-23 02:47:36,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 02:47:36,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 02:47:36,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:47:36,056 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 02:47:36,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 02:47:36,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 02:47:36,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 02:47:36,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 02:47:36,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 02:47:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:36,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 02:47:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:47:36,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067590214] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 02:47:36,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 02:47:36,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-23 02:47:36,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437919587] [2023-11-23 02:47:36,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 02:47:36,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 02:47:36,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:47:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 02:47:36,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-23 02:47:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:36,205 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:47:36,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 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) [2023-11-23 02:47:36,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:36,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:36,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:36,206 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:47:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 02:47:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 02:47:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 02:47:36,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 02:47:36,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 02:47:36,516 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 02:47:36,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:47:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash -986239454, now seen corresponding path program 1 times [2023-11-23 02:47:36,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:47:36,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717669261] [2023-11-23 02:47:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:47:36,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:47:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 02:47:36,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 02:47:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 02:47:36,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 02:47:36,555 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 02:47:36,555 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 02:47:36,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 02:47:36,557 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-23 02:47:36,557 INFO L307 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was UNSAFE (1/4) [2023-11-23 02:47:36,559 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2023-11-23 02:47:36,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 02:47:36,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 02:47:36,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 02:47:36,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 02:47:36,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:47:36 BasicIcfg [2023-11-23 02:47:36,585 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 02:47:36,586 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 02:47:36,586 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 02:47:36,586 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 02:47:36,586 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:47:32" (3/4) ... [2023-11-23 02:47:36,587 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 02:47:36,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 02:47:36,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 02:47:36,596 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 02:47:36,623 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-23 02:47:36,623 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 02:47:36,623 INFO L158 Benchmark]: Toolchain (without parser) took 5223.96ms. Allocated memory was 207.6MB in the beginning and 281.0MB in the end (delta: 73.4MB). Free memory was 139.4MB in the beginning and 224.8MB in the end (delta: -85.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 02:47:36,623 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 02:47:36,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.23ms. Allocated memory is still 207.6MB. Free memory was 139.1MB in the beginning and 119.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 02:47:36,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.90ms. Allocated memory is still 207.6MB. Free memory was 119.2MB in the beginning and 117.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 02:47:36,624 INFO L158 Benchmark]: Boogie Preprocessor took 65.58ms. Allocated memory is still 207.6MB. Free memory was 117.1MB in the beginning and 180.5MB in the end (delta: -63.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-23 02:47:36,624 INFO L158 Benchmark]: RCFGBuilder took 479.93ms. Allocated memory is still 207.6MB. Free memory was 180.5MB in the beginning and 159.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 02:47:36,624 INFO L158 Benchmark]: TraceAbstraction took 4174.03ms. Allocated memory was 207.6MB in the beginning and 281.0MB in the end (delta: 73.4MB). Free memory was 159.0MB in the beginning and 234.2MB in the end (delta: -75.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 02:47:36,625 INFO L158 Benchmark]: Witness Printer took 37.33ms. Allocated memory is still 281.0MB. Free memory was 234.2MB in the beginning and 224.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 02:47:36,626 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 111.1MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.23ms. Allocated memory is still 207.6MB. Free memory was 139.1MB in the beginning and 119.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.90ms. Allocated memory is still 207.6MB. Free memory was 119.2MB in the beginning and 117.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.58ms. Allocated memory is still 207.6MB. Free memory was 117.1MB in the beginning and 180.5MB in the end (delta: -63.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * RCFGBuilder took 479.93ms. Allocated memory is still 207.6MB. Free memory was 180.5MB in the beginning and 159.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4174.03ms. Allocated memory was 207.6MB in the beginning and 281.0MB in the end (delta: 73.4MB). Free memory was 159.0MB in the beginning and 234.2MB in the end (delta: -75.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.33ms. Allocated memory is still 281.0MB. Free memory was 234.2MB in the beginning and 224.8MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 141, independent: 136, independent conditional: 31, independent unconditional: 105, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 31, independent unconditional: 105, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 31, independent unconditional: 105, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 136, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 105, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 136, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 105, unknown conditional: 0, unknown unconditional: 105] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 5 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 16, Number of trivial persistent sets: 3, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 105, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 141, independent: 136, independent conditional: 31, independent unconditional: 105, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 31, independent unconditional: 105, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 31, independent unconditional: 105, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 136, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 136, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 105, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 105, independent: 104, independent conditional: 0, independent unconditional: 104, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 136, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 105, unknown conditional: 0, unknown unconditional: 105] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 5 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 183, independent: 178, independent conditional: 33, independent unconditional: 145, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 33, independent unconditional: 145, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 33, independent unconditional: 145, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 178, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 140, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 140, independent: 139, independent conditional: 0, independent unconditional: 139, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 178, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 5 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 21, Number of trivial persistent sets: 21, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 145, independent: 145, independent conditional: 0, independent unconditional: 145, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 183, independent: 178, independent conditional: 33, independent unconditional: 145, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 33, independent unconditional: 145, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 33, independent unconditional: 145, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 178, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 178, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 140, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 140, independent: 139, independent conditional: 0, independent unconditional: 139, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 178, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 140, unknown conditional: 0, unknown unconditional: 140] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 5 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 749, independent: 712, independent conditional: 182, independent unconditional: 530, dependent: 37, dependent conditional: 21, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 731, independent: 712, independent conditional: 182, independent unconditional: 530, dependent: 19, dependent conditional: 3, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 731, independent: 712, independent conditional: 182, independent unconditional: 530, dependent: 19, dependent conditional: 3, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 737, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 737, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 737, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 530, independent: 512, independent conditional: 0, independent unconditional: 512, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 530, independent: 501, independent conditional: 0, independent unconditional: 501, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 29, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 29, dependent conditional: 5, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 737, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 7, dependent conditional: 1, dependent unconditional: 6, unknown: 530, unknown conditional: 2, unknown unconditional: 528] , Statistics on independence cache: Total cache size (in pairs): 530, Positive cache size: 512, Positive conditional cache size: 0, Positive unconditional cache size: 512, Negative cache size: 18, Negative conditional cache size: 2, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 3, Independence queries for same thread: 18 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 53, Number of trivial persistent sets: 53, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 546, independent: 530, independent conditional: 0, independent unconditional: 530, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 749, independent: 712, independent conditional: 182, independent unconditional: 530, dependent: 37, dependent conditional: 21, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 731, independent: 712, independent conditional: 182, independent unconditional: 530, dependent: 19, dependent conditional: 3, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 731, independent: 712, independent conditional: 182, independent unconditional: 530, dependent: 19, dependent conditional: 3, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 737, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 737, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 737, independent: 712, independent conditional: 0, independent unconditional: 712, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 530, independent: 512, independent conditional: 0, independent unconditional: 512, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 530, independent: 501, independent conditional: 0, independent unconditional: 501, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 29, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 18, dependent conditional: 2, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 29, dependent conditional: 5, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 737, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 7, dependent conditional: 1, dependent unconditional: 6, unknown: 530, unknown conditional: 2, unknown unconditional: 528] , Statistics on independence cache: Total cache size (in pairs): 530, Positive cache size: 512, Positive conditional cache size: 0, Positive unconditional cache size: 512, Negative cache size: 18, Negative conditional cache size: 2, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 3, Independence queries for same thread: 18 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3704, independent: 3474, independent conditional: 2109, independent unconditional: 1365, dependent: 230, dependent conditional: 181, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3537, independent: 3474, independent conditional: 2109, independent unconditional: 1365, dependent: 63, dependent conditional: 14, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3537, independent: 3474, independent conditional: 2109, independent unconditional: 1365, dependent: 63, dependent conditional: 14, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3573, independent: 3474, independent conditional: 4, independent unconditional: 3470, dependent: 99, dependent conditional: 32, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3573, independent: 3474, independent conditional: 4, independent unconditional: 3470, dependent: 99, dependent conditional: 9, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3573, independent: 3474, independent conditional: 4, independent unconditional: 3470, dependent: 99, dependent conditional: 9, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1276, independent: 1221, independent conditional: 2, independent unconditional: 1219, dependent: 55, dependent conditional: 6, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1276, independent: 1183, independent conditional: 0, independent unconditional: 1183, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 93, independent: 38, independent conditional: 2, independent unconditional: 36, dependent: 55, dependent conditional: 6, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 93, independent: 38, independent conditional: 2, independent unconditional: 36, dependent: 55, dependent conditional: 6, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 130, independent: 58, independent conditional: 2, independent unconditional: 56, dependent: 72, dependent conditional: 6, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3573, independent: 2253, independent conditional: 2, independent unconditional: 2251, dependent: 44, dependent conditional: 3, dependent unconditional: 41, unknown: 1276, unknown conditional: 8, unknown unconditional: 1268] , Statistics on independence cache: Total cache size (in pairs): 1276, Positive cache size: 1221, Positive conditional cache size: 2, Positive unconditional cache size: 1219, Negative cache size: 55, Negative conditional cache size: 6, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 23, Maximal queried relation: 4, Independence queries for same thread: 167 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 490, Number of trivial persistent sets: 477, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1414, independent: 1365, independent conditional: 0, independent unconditional: 1365, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3704, independent: 3474, independent conditional: 2109, independent unconditional: 1365, dependent: 230, dependent conditional: 181, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3537, independent: 3474, independent conditional: 2109, independent unconditional: 1365, dependent: 63, dependent conditional: 14, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3537, independent: 3474, independent conditional: 2109, independent unconditional: 1365, dependent: 63, dependent conditional: 14, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3573, independent: 3474, independent conditional: 4, independent unconditional: 3470, dependent: 99, dependent conditional: 32, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3573, independent: 3474, independent conditional: 4, independent unconditional: 3470, dependent: 99, dependent conditional: 9, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3573, independent: 3474, independent conditional: 4, independent unconditional: 3470, dependent: 99, dependent conditional: 9, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1276, independent: 1221, independent conditional: 2, independent unconditional: 1219, dependent: 55, dependent conditional: 6, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1276, independent: 1183, independent conditional: 0, independent unconditional: 1183, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 93, independent: 38, independent conditional: 2, independent unconditional: 36, dependent: 55, dependent conditional: 6, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 93, independent: 38, independent conditional: 2, independent unconditional: 36, dependent: 55, dependent conditional: 6, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 130, independent: 58, independent conditional: 2, independent unconditional: 56, dependent: 72, dependent conditional: 6, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3573, independent: 2253, independent conditional: 2, independent unconditional: 2251, dependent: 44, dependent conditional: 3, dependent unconditional: 41, unknown: 1276, unknown conditional: 8, unknown unconditional: 1268] , Statistics on independence cache: Total cache size (in pairs): 1276, Positive cache size: 1221, Positive conditional cache size: 2, Positive unconditional cache size: 1219, Negative cache size: 55, Negative conditional cache size: 6, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 23, Maximal queried relation: 4, Independence queries for same thread: 167 - CounterExampleResult [Line: 728]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 volatile unsigned int count = 0; [L705] 0 _Bool MTX = 0; [L706] 0 _Bool COND = 0; [L732] 0 pthread_t t; VAL [COND=0, MTX=0, count=0, t={3:0}] [L733] COND TRUE 0 1 [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX=0, count=0, t={3:0}] [L727] CALL 1 Barrier2() [L718] CALL 1 __VERIFIER_atomic_acquire() [L709] CALL 1 assume_abort_if_not(MTX==0) [L3] COND FALSE 1 !(!cond) [L709] RET 1 assume_abort_if_not(MTX==0) [L710] 1 MTX = 1 [L718] RET 1 __VERIFIER_atomic_acquire() [L719] 1 count++ VAL [COND=0, MTX=1, count=1] [L720] COND FALSE 1 !(count == 3) VAL [COND=0, MTX=1, count=1] [L724] CALL 1 __VERIFIER_atomic_release() [L714] CALL 1 assume_abort_if_not(MTX==1) [L3] COND FALSE 1 !(!cond) [L714] RET 1 assume_abort_if_not(MTX==1) [L715] 1 MTX = 0 [L724] RET 1 __VERIFIER_atomic_release() [L733] COND TRUE 0 1 [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX=0, count=1, t={3:0}] [L727] CALL 2 Barrier2() [L718] CALL 2 __VERIFIER_atomic_acquire() [L709] CALL 2 assume_abort_if_not(MTX==0) [L3] COND FALSE 2 !(!cond) [L709] RET 2 assume_abort_if_not(MTX==0) [L710] 2 MTX = 1 [L718] RET 2 __VERIFIER_atomic_acquire() [L719] 2 count++ VAL [COND=0, MTX=1, count=2] [L720] COND FALSE 2 !(count == 3) VAL [COND=0, MTX=1, count=2] [L724] CALL 2 __VERIFIER_atomic_release() [L714] CALL 2 assume_abort_if_not(MTX==1) [L3] COND FALSE 2 !(!cond) [L714] RET 2 assume_abort_if_not(MTX==1) [L715] 2 MTX = 0 [L724] RET 2 __VERIFIER_atomic_release() [L733] COND TRUE 0 1 [L733] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [COND=0, MTX=0, count=2, t={3:0}] [L727] CALL 3 Barrier2() [L718] CALL 3 __VERIFIER_atomic_acquire() [L709] CALL 3 assume_abort_if_not(MTX==0) [L3] COND FALSE 3 !(!cond) [L709] RET 3 assume_abort_if_not(MTX==0) [L710] 3 MTX = 1 [L718] RET 3 __VERIFIER_atomic_acquire() [L719] 3 count++ VAL [COND=0, MTX=1, count=3] [L720] COND TRUE 3 count == 3 VAL [COND=0, MTX=1, count=3] [L721] 3 COND = 1 VAL [COND=1, MTX=1, count=3] [L724] CALL 1 assume_abort_if_not(COND) [L3] COND FALSE 1 !(!cond) [L724] RET 1 assume_abort_if_not(COND) [L724] 1 COND = 0 VAL [COND=0, MTX=1, count=3] [L722] 3 count = 0 VAL [COND=0, MTX=1, count=0] [L725] CALL 3 __VERIFIER_atomic_release() [L714] CALL 3 assume_abort_if_not(MTX==1) [L3] COND FALSE 3 !(!cond) [L714] RET 3 assume_abort_if_not(MTX==1) [L715] 3 MTX = 0 [L725] RET 3 __VERIFIER_atomic_release() [L724] CALL 1 __VERIFIER_atomic_acquire() [L709] CALL 1 assume_abort_if_not(MTX==0) [L3] COND FALSE 1 !(!cond) [L709] RET 1 assume_abort_if_not(MTX==0) [L710] 1 MTX = 1 [L724] RET 1 __VERIFIER_atomic_acquire() [L725] CALL 1 __VERIFIER_atomic_release() [L714] CALL 1 assume_abort_if_not(MTX==1) [L3] COND FALSE 1 !(!cond) [L714] RET 1 assume_abort_if_not(MTX==1) [L715] 1 MTX = 0 [L725] RET 1 __VERIFIER_atomic_release() [L727] RET 1 Barrier2() [L728] 1 reach_error() VAL [COND=0, MTX=0, arg={0:0}, arg={0:0}, count=0] [L727] RET 3 Barrier2() [L728] 3 reach_error() VAL [COND=0, MTX=0, arg={0:0}, arg={0:0}, count=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 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 2 thread instances CFG has 4 procedures, 51 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, 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: 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 244 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 41/49 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: thr1Thread3of3ForFork0 with 1 thread instances CFG has 5 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, 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: 17, 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, 0.3s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 509 SizeOfPredicates, 0 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 41/49 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-23 02:47:36,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Ended with exit code 0 [2023-11-23 02:47:36,862 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 [2023-11-23 02:47:37,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 02:47:37,277 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 [2023-11-23 02:47:37,485 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