./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b03bd7cf 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 ../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-b03bd7c-m [2024-10-28 17:58:12,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-28 17:58:12,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-28 17:58:12,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-28 17:58:12,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-28 17:58:12,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-28 17:58:12,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-28 17:58:12,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-28 17:58:12,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-28 17:58:12,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-28 17:58:12,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-28 17:58:12,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-28 17:58:12,919 INFO L153 SettingsManager]: * Use SBE=true [2024-10-28 17:58:12,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-28 17:58:12,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-28 17:58:12,921 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-28 17:58:12,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-28 17:58:12,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-28 17:58:12,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-28 17:58:12,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-28 17:58:12,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-28 17:58:12,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-28 17:58:12,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-28 17:58:12,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-28 17:58:12,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-28 17:58:12,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-28 17:58:12,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-28 17:58:12,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-28 17:58:12,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-28 17:58:12,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-28 17:58:12,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 17:58:12,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-28 17:58:12,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-28 17:58:12,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-28 17:58:12,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-28 17:58:12,930 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-28 17:58:12,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-28 17:58:12,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-28 17:58:12,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-28 17:58:12,931 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-28 17:58:12,931 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-28 17:58:12,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2024-10-28 17:58:13,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-28 17:58:13,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-28 17:58:13,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-28 17:58:13,213 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-28 17:58:13,214 INFO L274 PluginConnector]: CDTParser initialized [2024-10-28 17:58:13,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2024-10-28 17:58:14,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-28 17:58:14,899 INFO L384 CDTParser]: Found 1 translation units. [2024-10-28 17:58:14,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2024-10-28 17:58:14,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7a07776c0/6fdb95c0a7fd4bc99f45fd3b9a747378/FLAGf75958b72 [2024-10-28 17:58:15,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/7a07776c0/6fdb95c0a7fd4bc99f45fd3b9a747378 [2024-10-28 17:58:15,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-28 17:58:15,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-28 17:58:15,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-28 17:58:15,222 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-28 17:58:15,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-28 17:58:15,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cec3255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15, skipping insertion in model container [2024-10-28 17:58:15,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-28 17:58:15,575 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2024-10-28 17:58:15,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 17:58:15,626 INFO L200 MainTranslator]: Completed pre-run [2024-10-28 17:58:15,669 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2024-10-28 17:58:15,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 17:58:15,726 INFO L204 MainTranslator]: Completed translation [2024-10-28 17:58:15,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15 WrapperNode [2024-10-28 17:58:15,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-28 17:58:15,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-28 17:58:15,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-28 17:58:15,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-28 17:58:15,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,772 INFO L138 Inliner]: procedures = 171, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 117 [2024-10-28 17:58:15,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-28 17:58:15,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-28 17:58:15,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-28 17:58:15,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-28 17:58:15,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-28 17:58:15,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-28 17:58:15,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-28 17:58:15,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-28 17:58:15,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (1/1) ... [2024-10-28 17:58:15,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 17:58:15,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 17:58:15,845 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) [2024-10-28 17:58:15,851 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 [2024-10-28 17:58:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-28 17:58:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-28 17:58:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-28 17:58:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-28 17:58:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-28 17:58:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-28 17:58:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-28 17:58:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-28 17:58:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-28 17:58:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-28 17:58:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-28 17:58:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-28 17:58:15,907 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-28 17:58:16,026 INFO L238 CfgBuilder]: Building ICFG [2024-10-28 17:58:16,028 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-28 17:58:16,253 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-28 17:58:16,253 INFO L287 CfgBuilder]: Performing block encoding [2024-10-28 17:58:16,658 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-28 17:58:16,658 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-28 17:58:16,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:58:16 BoogieIcfgContainer [2024-10-28 17:58:16,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-28 17:58:16,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-28 17:58:16,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-28 17:58:16,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-28 17:58:16,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:58:15" (1/3) ... [2024-10-28 17:58:16,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1e06c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:58:16, skipping insertion in model container [2024-10-28 17:58:16,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:58:15" (2/3) ... [2024-10-28 17:58:16,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a1e06c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:58:16, skipping insertion in model container [2024-10-28 17:58:16,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:58:16" (3/3) ... [2024-10-28 17:58:16,669 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2024-10-28 17:58:16,688 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-28 17:58:16,688 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-28 17:58:16,688 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-28 17:58:16,728 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-28 17:58:16,783 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 17:58:16,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-28 17:58:16,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 17:58:16,786 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) [2024-10-28 17:58:16,787 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 [2024-10-28 17:58:16,815 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-28 17:58:16,830 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-28 17:58:16,836 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;@25c9c360, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 17:58:16,837 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-28 17:58:17,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 17:58:17,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 17:58:17,268 INFO L85 PathProgramCache]: Analyzing trace with hash -246726154, now seen corresponding path program 1 times [2024-10-28 17:58:17,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 17:58:17,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880133927] [2024-10-28 17:58:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 17:58:17,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 17:58:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 17:58:17,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 17:58:17,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 17:58:17,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880133927] [2024-10-28 17:58:17,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880133927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 17:58:17,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 17:58:17,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-28 17:58:17,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172090640] [2024-10-28 17:58:17,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 17:58:17,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-28 17:58:17,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 17:58:17,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-28 17:58:17,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-28 17:58:17,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:17,610 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 17:58:17,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 17:58:17,611 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:17,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:17,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-28 17:58:17,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 17:58:17,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 17:58:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2086398868, now seen corresponding path program 1 times [2024-10-28 17:58:17,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 17:58:17,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553421666] [2024-10-28 17:58:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 17:58:17,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 17:58:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 17:58:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 17:58:17,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 17:58:17,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553421666] [2024-10-28 17:58:17,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553421666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 17:58:17,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 17:58:17,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-28 17:58:17,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688758550] [2024-10-28 17:58:17,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 17:58:17,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-28 17:58:17,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 17:58:17,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-28 17:58:17,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-28 17:58:17,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:17,992 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 17:58:17,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-10-28 17:58:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:17,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-28 17:58:18,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-28 17:58:18,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 17:58:18,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 17:58:18,493 INFO L85 PathProgramCache]: Analyzing trace with hash -704137168, now seen corresponding path program 1 times [2024-10-28 17:58:18,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 17:58:18,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169313747] [2024-10-28 17:58:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 17:58:18,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 17:58:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 17:58:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 17:58:18,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 17:58:18,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169313747] [2024-10-28 17:58:18,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169313747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 17:58:18,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 17:58:18,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-28 17:58:18,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512112305] [2024-10-28 17:58:18,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 17:58:18,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-28 17:58:18,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 17:58:18,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-28 17:58:18,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-28 17:58:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:18,625 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 17:58:18,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 17:58:18,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:18,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-28 17:58:18,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-28 17:58:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-28 17:58:18,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-28 17:58:18,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 17:58:18,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 17:58:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash -121339723, now seen corresponding path program 1 times [2024-10-28 17:58:18,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 17:58:18,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338902119] [2024-10-28 17:58:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 17:58:18,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 17:58:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 17:58:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 17:58:19,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 17:58:19,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338902119] [2024-10-28 17:58:19,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338902119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 17:58:19,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 17:58:19,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-28 17:58:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990345330] [2024-10-28 17:58:19,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 17:58:19,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-28 17:58:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 17:58:19,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-28 17:58:19,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-28 17:58:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,072 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 17:58:19,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 17:58:19,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-28 17:58:19,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-28 17:58:19,073 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-28 17:58:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-28 17:58:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 17:58:19,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-28 17:58:19,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-28 17:58:19,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 17:58:19,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1284932437, now seen corresponding path program 1 times [2024-10-28 17:58:19,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 17:58:19,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790558770] [2024-10-28 17:58:19,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 17:58:19,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 17:58:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 17:58:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 17:58:19,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 17:58:19,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790558770] [2024-10-28 17:58:19,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790558770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 17:58:19,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 17:58:19,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-28 17:58:19,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988704321] [2024-10-28 17:58:19,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 17:58:19,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-28 17:58:19,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 17:58:19,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-28 17:58:19,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-28 17:58:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,735 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 17:58:19,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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) [2024-10-28 17:58:19,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-28 17:58:19,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-28 17:58:19,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-28 17:58:19,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 17:58:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-28 17:58:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-28 17:58:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-28 17:58:19,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-28 17:58:19,971 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-10-28 17:58:19,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-10-28 17:58:19,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-28 17:58:19,978 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-28 17:58:19,981 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-28 17:58:19,981 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-28 17:58:20,003 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 [2024-10-28 17:58:20,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 05:58:20 BasicIcfg [2024-10-28 17:58:20,005 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-28 17:58:20,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-28 17:58:20,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-28 17:58:20,006 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-28 17:58:20,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:58:16" (3/4) ... [2024-10-28 17:58:20,008 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-28 17:58:20,012 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-28 17:58:20,015 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-10-28 17:58:20,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-28 17:58:20,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-28 17:58:20,016 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-28 17:58:20,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-28 17:58:20,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-10-28 17:58:20,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-28 17:58:20,092 INFO L158 Benchmark]: Toolchain (without parser) took 4873.65ms. Allocated memory was 146.8MB in the beginning and 226.5MB in the end (delta: 79.7MB). Free memory was 92.9MB in the beginning and 136.1MB in the end (delta: -43.2MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-10-28 17:58:20,092 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 146.8MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-28 17:58:20,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.53ms. Allocated memory is still 146.8MB. Free memory was 92.9MB in the beginning and 69.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-28 17:58:20,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.67ms. Allocated memory is still 146.8MB. Free memory was 69.9MB in the beginning and 67.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-28 17:58:20,093 INFO L158 Benchmark]: Boogie Preprocessor took 28.98ms. Allocated memory is still 146.8MB. Free memory was 67.3MB in the beginning and 65.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-28 17:58:20,094 INFO L158 Benchmark]: RCFGBuilder took 856.14ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 65.7MB in the beginning and 67.8MB in the end (delta: -2.1MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2024-10-28 17:58:20,094 INFO L158 Benchmark]: TraceAbstraction took 3342.99ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 67.8MB in the beginning and 140.9MB in the end (delta: -73.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-28 17:58:20,094 INFO L158 Benchmark]: Witness Printer took 86.27ms. Allocated memory is still 226.5MB. Free memory was 140.9MB in the beginning and 136.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-28 17:58:20,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 146.8MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.53ms. Allocated memory is still 146.8MB. Free memory was 92.9MB in the beginning and 69.9MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.67ms. Allocated memory is still 146.8MB. Free memory was 69.9MB in the beginning and 67.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.98ms. Allocated memory is still 146.8MB. Free memory was 67.3MB in the beginning and 65.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 856.14ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 65.7MB in the beginning and 67.8MB in the end (delta: -2.1MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3342.99ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 67.8MB in the beginning and 140.9MB in the end (delta: -73.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 86.27ms. Allocated memory is still 226.5MB. Free memory was 140.9MB in the beginning and 136.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. 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: 1093, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 84, dependent conditional: 62, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1038, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 29, dependent conditional: 7, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1038, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 29, dependent conditional: 7, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1053, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 44, dependent conditional: 22, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1053, independent: 1009, independent conditional: 5, independent unconditional: 1004, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1053, independent: 1009, independent conditional: 5, independent unconditional: 1004, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 675, independent: 650, independent conditional: 3, independent unconditional: 647, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 675, independent: 629, independent conditional: 0, independent unconditional: 629, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 46, independent: 21, independent conditional: 3, independent unconditional: 18, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, independent: 21, independent conditional: 3, independent unconditional: 18, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1296, independent: 535, independent conditional: 77, independent unconditional: 458, dependent: 761, dependent conditional: 91, dependent unconditional: 670, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1053, independent: 359, independent conditional: 2, independent unconditional: 357, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 675, unknown conditional: 6, unknown unconditional: 669] , Statistics on independence cache: Total cache size (in pairs): 675, Positive cache size: 650, Positive conditional cache size: 3, Positive unconditional cache size: 647, Negative cache size: 25, Negative conditional cache size: 3, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 150, Maximal queried relation: 2, Independence queries for same thread: 55, Persistent sets #1 benchmarks: Persistent set computation time: 1.2s, Number of persistent set computation: 92, Number of trivial persistent sets: 73, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 894, independent: 872, independent conditional: 0, independent unconditional: 872, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1093, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 84, dependent conditional: 62, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1038, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 29, dependent conditional: 7, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1038, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 29, dependent conditional: 7, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1053, independent: 1009, independent conditional: 137, independent unconditional: 872, dependent: 44, dependent conditional: 22, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1053, independent: 1009, independent conditional: 5, independent unconditional: 1004, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1053, independent: 1009, independent conditional: 5, independent unconditional: 1004, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 675, independent: 650, independent conditional: 3, independent unconditional: 647, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 675, independent: 629, independent conditional: 0, independent unconditional: 629, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 46, independent: 21, independent conditional: 3, independent unconditional: 18, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 46, independent: 21, independent conditional: 3, independent unconditional: 18, dependent: 25, dependent conditional: 3, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1296, independent: 535, independent conditional: 77, independent unconditional: 458, dependent: 761, dependent conditional: 91, dependent unconditional: 670, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1053, independent: 359, independent conditional: 2, independent unconditional: 357, dependent: 19, dependent conditional: 1, dependent unconditional: 18, unknown: 675, unknown conditional: 6, unknown unconditional: 669] , Statistics on independence cache: Total cache size (in pairs): 675, Positive cache size: 650, Positive conditional cache size: 3, Positive unconditional cache size: 647, Negative cache size: 25, Negative conditional cache size: 3, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 150, Maximal queried relation: 2, Independence queries for same thread: 55 - PositiveResult [Line: 691]: 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 3 procedures, 56 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-28 17:58:20,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE