./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c -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 0d8fc97f7c37032d6079f8a24b87bc520ff0a9c17c3894514011566166a643e8 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking LOOP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 15:45:57,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 15:45:57,446 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 15:45:57,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 15:45:57,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 15:45:57,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 15:45:57,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 15:45:57,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 15:45:57,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 15:45:57,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 15:45:57,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 15:45:57,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 15:45:57,489 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 15:45:57,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 15:45:57,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 15:45:57,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 15:45:57,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 15:45:57,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 15:45:57,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 15:45:57,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 15:45:57,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 15:45:57,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 15:45:57,497 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 15:45:57,497 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 15:45:57,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 15:45:57,497 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 15:45:57,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 15:45:57,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 15:45:57,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 15:45:57,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 15:45:57,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 15:45:57,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 15:45:57,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 15:45:57,499 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 15:45:57,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 15:45:57,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 15:45:57,500 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 15:45:57,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 15:45:57,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 15:45:57,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 15:45:57,502 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 15:45:57,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8fc97f7c37032d6079f8a24b87bc520ff0a9c17c3894514011566166a643e8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> LOOP [2024-10-17 15:45:57,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 15:45:57,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 15:45:57,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 15:45:57,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 15:45:57,786 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 15:45:57,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2024-10-17 15:45:59,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 15:45:59,435 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 15:45:59,436 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2024-10-17 15:45:59,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ccdfd9522/22e98873de52409688db446fbb589545/FLAG6336407ce [2024-10-17 15:45:59,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ccdfd9522/22e98873de52409688db446fbb589545 [2024-10-17 15:45:59,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 15:45:59,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 15:45:59,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 15:45:59,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 15:45:59,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 15:45:59,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 03:45:59" (1/1) ... [2024-10-17 15:45:59,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fda5cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:45:59, skipping insertion in model container [2024-10-17 15:45:59,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 03:45:59" (1/1) ... [2024-10-17 15:45:59,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 15:46:00,027 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c[3096,3109] [2024-10-17 15:46:00,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 15:46:00,044 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 15:46:00,070 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c[3096,3109] [2024-10-17 15:46:00,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 15:46:00,101 INFO L204 MainTranslator]: Completed translation [2024-10-17 15:46:00,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00 WrapperNode [2024-10-17 15:46:00,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 15:46:00,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 15:46:00,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 15:46:00,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 15:46:00,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,139 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-10-17 15:46:00,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 15:46:00,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 15:46:00,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 15:46:00,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 15:46:00,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 15:46:00,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 15:46:00,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 15:46:00,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 15:46:00,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (1/1) ... [2024-10-17 15:46:00,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 15:46:00,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:46:00,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-17 15:46:00,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-17 15:46:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 15:46:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-17 15:46:00,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-17 15:46:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-17 15:46:00,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-17 15:46:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-17 15:46:00,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-17 15:46:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 15:46:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 15:46:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-17 15:46:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-17 15:46:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 15:46:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 15:46:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 15:46:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 15:46:00,278 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 15:46:00,394 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 15:46:00,396 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 15:46:00,763 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 15:46:00,767 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 15:46:01,045 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 15:46:01,045 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-17 15:46:01,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 03:46:01 BoogieIcfgContainer [2024-10-17 15:46:01,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 15:46:01,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 15:46:01,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 15:46:01,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 15:46:01,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 03:45:59" (1/3) ... [2024-10-17 15:46:01,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3c340d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 03:46:01, skipping insertion in model container [2024-10-17 15:46:01,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 03:46:00" (2/3) ... [2024-10-17 15:46:01,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3c340d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 03:46:01, skipping insertion in model container [2024-10-17 15:46:01,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 03:46:01" (3/3) ... [2024-10-17 15:46:01,056 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2024-10-17 15:46:01,073 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 15:46:01,073 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 15:46:01,073 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 15:46:01,126 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-17 15:46:01,164 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 15:46:01,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 15:46:01,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:46:01,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 15:46:01,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-17 15:46:01,266 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 15:46:01,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:46:01,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 15:46:01,297 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@552e0582, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=LOOP, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-17 15:46:01,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-17 15:46:02,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 15:46:02,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:46:02,395 INFO L85 PathProgramCache]: Analyzing trace with hash 222316169, now seen corresponding path program 1 times [2024-10-17 15:46:02,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:46:02,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505833095] [2024-10-17 15:46:02,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:46:02,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:46:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:46:02,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 15:46:02,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:46:02,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505833095] [2024-10-17 15:46:02,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505833095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 15:46:02,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 15:46:02,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 15:46:02,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372972294] [2024-10-17 15:46:02,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:46:02,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 15:46:02,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:46:02,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 15:46:02,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-17 15:46:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:02,878 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:46:02,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 15:46:02,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:02,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 15:46:02,972 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 15:46:02,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:46:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1582895951, now seen corresponding path program 1 times [2024-10-17 15:46:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:46:02,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855280886] [2024-10-17 15:46:02,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:46:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:46:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:46:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-17 15:46:03,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:46:03,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855280886] [2024-10-17 15:46:03,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855280886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 15:46:03,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 15:46:03,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-17 15:46:03,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335184637] [2024-10-17 15:46:03,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:46:03,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 15:46:03,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:46:03,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 15:46:03,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 15:46:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:03,195 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:46:03,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 15:46:03,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:03,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:03,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:03,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:46:03,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-17 15:46:03,271 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 15:46:03,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:46:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash 301397999, now seen corresponding path program 1 times [2024-10-17 15:46:03,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:46:03,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71892839] [2024-10-17 15:46:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:46:03,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:46:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:46:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 15:46:03,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:46:03,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71892839] [2024-10-17 15:46:03,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71892839] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:46:03,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466634385] [2024-10-17 15:46:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:46:03,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:46:03,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:46:03,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 15:46:03,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 15:46:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:46:03,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-17 15:46:03,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:46:03,835 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 15:46:03,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 15:46:03,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 15:46:03,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466634385] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 15:46:03,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 15:46:03,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-10-17 15:46:03,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428997092] [2024-10-17 15:46:03,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 15:46:03,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-17 15:46:03,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:46:03,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-17 15:46:03,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-10-17 15:46:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:03,925 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:46:03,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 15:46:03,925 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:03,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:46:03,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:46:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:46:04,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 15:46:04,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-17 15:46:04,264 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 15:46:04,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:46:04,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1415031695, now seen corresponding path program 2 times [2024-10-17 15:46:04,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:46:04,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153585711] [2024-10-17 15:46:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:46:04,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:46:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:46:04,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 15:46:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:46:04,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153585711] [2024-10-17 15:46:04,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153585711] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:46:04,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813131671] [2024-10-17 15:46:04,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 15:46:04,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:46:04,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:46:04,486 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 15:46:04,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 15:46:04,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-17 15:46:04,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:46:04,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-17 15:46:04,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:46:04,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-17 15:46:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 15:46:04,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 15:46:04,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813131671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 15:46:04,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 15:46:04,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-17 15:46:04,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890387777] [2024-10-17 15:46:04,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:46:04,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 15:46:04,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:46:04,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 15:46:04,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-17 15:46:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:04,684 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:46:04,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 15:46:04,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:04,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:46:04,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:46:04,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:46:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:46:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:46:05,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 15:46:05,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:46:05,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-17 15:46:05,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 15:46:05,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2032662435, now seen corresponding path program 3 times [2024-10-17 15:46:05,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 15:46:05,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358213138] [2024-10-17 15:46:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 15:46:05,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 15:46:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 15:46:05,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 15:46:05,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 15:46:05,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358213138] [2024-10-17 15:46:05,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358213138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 15:46:05,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528395353] [2024-10-17 15:46:05,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 15:46:05,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:46:05,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 15:46:05,951 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-17 15:46:05,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 15:46:06,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-17 15:46:06,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 15:46:06,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-17 15:46:06,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 15:46:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 15:46:06,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 15:46:06,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528395353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 15:46:06,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 15:46:06,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-10-17 15:46:06,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436709335] [2024-10-17 15:46:06,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 15:46:06,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 15:46:06,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 15:46:06,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 15:46:06,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-17 15:46:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:06,143 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 15:46:06,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 15:46:06,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:06,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:46:06,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:46:06,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 15:46:06,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 15:46:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 15:46:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 15:46:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-17 15:46:06,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 15:46:06,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-17 15:46:06,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-17 15:46:06,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-17 15:46:06,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-17 15:46:06,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-17 15:46:07,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 15:46:07,133 INFO L414 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-10-17 15:46:07,136 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-17 15:46:07,136 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-17 15:46:07,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 03:46:07 BasicIcfg [2024-10-17 15:46:07,139 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-17 15:46:07,139 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-17 15:46:07,139 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-17 15:46:07,140 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-17 15:46:07,140 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 03:46:01" (3/4) ... [2024-10-17 15:46:07,142 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-17 15:46:07,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-17 15:46:07,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-17 15:46:07,145 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-17 15:46:07,150 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 115 nodes and edges [2024-10-17 15:46:07,151 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-10-17 15:46:07,151 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-10-17 15:46:07,151 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-17 15:46:07,248 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-17 15:46:07,249 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-10-17 15:46:07,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-17 15:46:07,249 INFO L158 Benchmark]: Toolchain (without parser) took 7436.36ms. Allocated memory was 155.2MB in the beginning and 281.0MB in the end (delta: 125.8MB). Free memory was 99.4MB in the beginning and 112.3MB in the end (delta: -12.9MB). Peak memory consumption was 115.5MB. Max. memory is 16.1GB. [2024-10-17 15:46:07,250 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 155.2MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 15:46:07,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.51ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 85.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-17 15:46:07,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.86ms. Allocated memory is still 155.2MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 15:46:07,250 INFO L158 Benchmark]: Boogie Preprocessor took 39.75ms. Allocated memory is still 155.2MB. Free memory was 83.4MB in the beginning and 81.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 15:46:07,251 INFO L158 Benchmark]: RCFGBuilder took 861.46ms. Allocated memory is still 155.2MB. Free memory was 81.7MB in the beginning and 93.7MB in the end (delta: -12.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-10-17 15:46:07,251 INFO L158 Benchmark]: TraceAbstraction took 6090.84ms. Allocated memory was 155.2MB in the beginning and 281.0MB in the end (delta: 125.8MB). Free memory was 92.4MB in the beginning and 118.3MB in the end (delta: -26.0MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. [2024-10-17 15:46:07,251 INFO L158 Benchmark]: Witness Printer took 109.53ms. Allocated memory is still 281.0MB. Free memory was 118.3MB in the beginning and 112.3MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-17 15:46:07,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 155.2MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.51ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 85.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.86ms. Allocated memory is still 155.2MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.75ms. Allocated memory is still 155.2MB. Free memory was 83.4MB in the beginning and 81.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 861.46ms. Allocated memory is still 155.2MB. Free memory was 81.7MB in the beginning and 93.7MB in the end (delta: -12.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6090.84ms. Allocated memory was 155.2MB in the beginning and 281.0MB in the end (delta: 125.8MB). Free memory was 92.4MB in the beginning and 118.3MB in the end (delta: -26.0MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. * Witness Printer took 109.53ms. Allocated memory is still 281.0MB. Free memory was 118.3MB in the beginning and 112.3MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6374, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 656, dependent conditional: 640, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5740, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 22, dependent conditional: 6, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5740, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 22, dependent conditional: 6, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5740, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 22, dependent conditional: 6, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 221, dependent conditional: 189, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 694, independent: 674, independent conditional: 8, independent unconditional: 666, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 694, independent: 664, independent conditional: 0, independent unconditional: 664, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2094, independent: 662, independent conditional: 530, independent unconditional: 132, dependent: 1432, dependent conditional: 214, dependent unconditional: 1218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5939, independent: 5044, independent conditional: 151, independent unconditional: 4893, dependent: 201, dependent conditional: 9, dependent unconditional: 192, unknown: 694, unknown conditional: 12, unknown unconditional: 682] , Statistics on independence cache: Total cache size (in pairs): 694, Positive cache size: 674, Positive conditional cache size: 8, Positive unconditional cache size: 666, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4991, Maximal queried relation: 3, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 221, dependent conditional: 189, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 694, independent: 674, independent conditional: 8, independent unconditional: 666, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 694, independent: 664, independent conditional: 0, independent unconditional: 664, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2094, independent: 662, independent conditional: 530, independent unconditional: 132, dependent: 1432, dependent conditional: 214, dependent unconditional: 1218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5939, independent: 5044, independent conditional: 151, independent unconditional: 4893, dependent: 201, dependent conditional: 9, dependent unconditional: 192, unknown: 694, unknown conditional: 12, unknown unconditional: 682] , Statistics on independence cache: Total cache size (in pairs): 694, Positive cache size: 674, Positive conditional cache size: 8, Positive unconditional cache size: 666, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4991 ], Independence queries for same thread: 634, Persistent sets #1 benchmarks: Persistent set computation time: 1.4s, Number of persistent set computation: 397, Number of trivial persistent sets: 318, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 760, independent: 744, independent conditional: 0, independent unconditional: 744, 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: 6374, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 656, dependent conditional: 640, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5740, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 22, dependent conditional: 6, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5740, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 22, dependent conditional: 6, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 5740, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 22, dependent conditional: 6, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 221, dependent conditional: 189, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 694, independent: 674, independent conditional: 8, independent unconditional: 666, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 694, independent: 664, independent conditional: 0, independent unconditional: 664, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2094, independent: 662, independent conditional: 530, independent unconditional: 132, dependent: 1432, dependent conditional: 214, dependent unconditional: 1218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5939, independent: 5044, independent conditional: 151, independent unconditional: 4893, dependent: 201, dependent conditional: 9, dependent unconditional: 192, unknown: 694, unknown conditional: 12, unknown unconditional: 682] , Statistics on independence cache: Total cache size (in pairs): 694, Positive cache size: 674, Positive conditional cache size: 8, Positive unconditional cache size: 666, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4991, Maximal queried relation: 3, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 4974, independent unconditional: 744, dependent: 221, dependent conditional: 189, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5939, independent: 5718, independent conditional: 159, independent unconditional: 5559, dependent: 221, dependent conditional: 13, dependent unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 694, independent: 674, independent conditional: 8, independent unconditional: 666, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 694, independent: 664, independent conditional: 0, independent unconditional: 664, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 10, independent conditional: 8, independent unconditional: 2, dependent: 20, dependent conditional: 4, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2094, independent: 662, independent conditional: 530, independent unconditional: 132, dependent: 1432, dependent conditional: 214, dependent unconditional: 1218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5939, independent: 5044, independent conditional: 151, independent unconditional: 4893, dependent: 201, dependent conditional: 9, dependent unconditional: 192, unknown: 694, unknown conditional: 12, unknown unconditional: 682] , Statistics on independence cache: Total cache size (in pairs): 694, Positive cache size: 674, Positive conditional cache size: 8, Positive unconditional cache size: 666, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4991 ], Independence queries for same thread: 634 - PositiveResult [Line: 115]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 58 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 3.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 284 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 1162 SizeOfPredicates, 11 NumberOfNonLiveVariables, 545 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 46/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: ConditionalCommutativityOverallTime: 0.1s, ConditionalCommutativityCheckTime: 0.1s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-17 15:46:07,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-17 15:46:07,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE