./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a849f68 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/GemCutterMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3efee66e785ce3d2f2ce0101e78a1cdae99209fb089cd0ed9c95f4aa53c186ea --- Real Ultimate output --- This is Ultimate 0.2.5-dev-9a849f6-m [2024-10-26 07:06:42,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-26 07:06:43,075 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2024-10-26 07:06:43,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-26 07:06:43,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-26 07:06:43,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-26 07:06:43,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-26 07:06:43,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-26 07:06:43,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-26 07:06:43,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-26 07:06:43,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-26 07:06:43,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-26 07:06:43,113 INFO L153 SettingsManager]: * Use SBE=true [2024-10-26 07:06:43,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-26 07:06:43,114 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-26 07:06:43,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-26 07:06:43,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-26 07:06:43,115 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-26 07:06:43,115 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-26 07:06:43,115 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-26 07:06:43,116 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-26 07:06:43,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-26 07:06:43,117 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-26 07:06:43,117 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-26 07:06:43,118 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-26 07:06:43,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-26 07:06:43,118 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-26 07:06:43,119 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-26 07:06:43,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-26 07:06:43,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-26 07:06:43,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-26 07:06:43,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 07:06:43,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-26 07:06:43,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-26 07:06:43,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-26 07:06:43,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-26 07:06:43,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-26 07:06:43,122 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-10-26 07:06:43,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-26 07:06:43,122 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-26 07:06:43,123 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-26 07:06:43,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3efee66e785ce3d2f2ce0101e78a1cdae99209fb089cd0ed9c95f4aa53c186ea [2024-10-26 07:06:43,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-26 07:06:43,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-26 07:06:43,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-26 07:06:43,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-26 07:06:43,384 INFO L274 PluginConnector]: CDTParser initialized [2024-10-26 07:06:43,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1.i [2024-10-26 07:06:44,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-26 07:06:45,056 INFO L384 CDTParser]: Found 1 translation units. [2024-10-26 07:06:45,057 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1.i [2024-10-26 07:06:45,072 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f408fa870/f2733dc426b74958b6e87ad882d45020/FLAG888a8f93f [2024-10-26 07:06:45,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f408fa870/f2733dc426b74958b6e87ad882d45020 [2024-10-26 07:06:45,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-26 07:06:45,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-26 07:06:45,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-26 07:06:45,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-26 07:06:45,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-26 07:06:45,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77649ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45, skipping insertion in model container [2024-10-26 07:06:45,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-26 07:06:45,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 07:06:45,615 INFO L200 MainTranslator]: Completed pre-run [2024-10-26 07:06:45,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-26 07:06:45,803 INFO L204 MainTranslator]: Completed translation [2024-10-26 07:06:45,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45 WrapperNode [2024-10-26 07:06:45,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-26 07:06:45,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-26 07:06:45,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-26 07:06:45,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-26 07:06:45,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,912 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 2112 [2024-10-26 07:06:45,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-26 07:06:45,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-26 07:06:45,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-26 07:06:45,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-26 07:06:45,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,937 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:45,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:46,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-26 07:06:46,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-26 07:06:46,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-26 07:06:46,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-26 07:06:46,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (1/1) ... [2024-10-26 07:06:46,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-26 07:06:46,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 07:06:46,055 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) [2024-10-26 07:06:46,060 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 [2024-10-26 07:06:46,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-26 07:06:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-26 07:06:46,106 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-26 07:06:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-26 07:06:46,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-26 07:06:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-26 07:06:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-26 07:06:46,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-26 07:06:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-26 07:06:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-26 07:06:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-26 07:06:46,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-26 07:06:46,110 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-26 07:06:46,222 INFO L238 CfgBuilder]: Building ICFG [2024-10-26 07:06:46,224 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-26 07:06:48,043 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-26 07:06:48,044 INFO L287 CfgBuilder]: Performing block encoding [2024-10-26 07:13:11,216 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-26 07:13:11,217 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-26 07:13:11,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:13:11 BoogieIcfgContainer [2024-10-26 07:13:11,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-26 07:13:11,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-26 07:13:11,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-26 07:13:11,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-26 07:13:11,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:06:45" (1/3) ... [2024-10-26 07:13:11,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6777b6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:13:11, skipping insertion in model container [2024-10-26 07:13:11,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:06:45" (2/3) ... [2024-10-26 07:13:11,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6777b6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:13:11, skipping insertion in model container [2024-10-26 07:13:11,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:13:11" (3/3) ... [2024-10-26 07:13:11,230 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-1.i [2024-10-26 07:13:11,249 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-26 07:13:11,250 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2024-10-26 07:13:11,250 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-26 07:13:12,437 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-26 07:13:12,484 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 07:13:12,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-26 07:13:12,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-26 07:13:12,487 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) [2024-10-26 07:13:12,489 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 [2024-10-26 07:13:12,536 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-26 07:13:12,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-10-26 07:13:12,553 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=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6fc83385, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-26 07:13:12,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-26 07:13:12,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thr1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thr1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 36 more)] === [2024-10-26 07:13:12,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-26 07:13:12,918 INFO L85 PathProgramCache]: Analyzing trace with hash 34655484, now seen corresponding path program 1 times [2024-10-26 07:13:12,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-26 07:13:12,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077674925] [2024-10-26 07:13:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-26 07:13:12,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15