./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 559b036c Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.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 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 --- Real Ultimate output --- This is Ultimate 0.2.3-?-559b036-m [2023-11-23 02:56:38,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 02:56:38,321 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-23 02:56:38,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 02:56:38,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 02:56:38,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 02:56:38,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 02:56:38,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 02:56:38,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 02:56:38,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 02:56:38,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 02:56:38,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 02:56:38,365 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 02:56:38,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 02:56:38,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 02:56:38,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 02:56:38,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 02:56:38,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 02:56:38,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 02:56:38,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 02:56:38,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 02:56:38,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 02:56:38,368 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 02:56:38,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 02:56:38,368 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 02:56:38,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 02:56:38,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 02:56:38,369 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 02:56:38,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 02:56:38,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 02:56:38,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 02:56:38,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 02:56:38,370 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 02:56:38,370 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 02:56:38,371 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-23 02:56:38,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 02:56:38,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 02:56:38,371 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-23 02:56:38,371 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 02:56:38,371 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-23 02:56:38,371 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-23 02:56:38,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 [2023-11-23 02:56:38,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 02:56:38,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 02:56:38,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 02:56:38,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 02:56:38,606 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 02:56:38,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2023-11-23 02:56:39,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 02:56:39,852 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 02:56:39,859 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i [2023-11-23 02:56:39,872 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/12a341cd6/dc3a6a86a681457c8e19d49a523d6f2d/FLAG60d4de288 [2023-11-23 02:56:39,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/12a341cd6/dc3a6a86a681457c8e19d49a523d6f2d [2023-11-23 02:56:39,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 02:56:39,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 02:56:39,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 02:56:39,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 02:56:39,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 02:56:39,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:56:39" (1/1) ... [2023-11-23 02:56:39,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dff2c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:39, skipping insertion in model container [2023-11-23 02:56:39,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:56:39" (1/1) ... [2023-11-23 02:56:39,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 02:56:40,097 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i[945,958] [2023-11-23 02:56:40,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 02:56:40,257 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 02:56:40,269 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.i[945,958] [2023-11-23 02:56:40,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 02:56:40,340 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 02:56:40,341 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 02:56:40,347 INFO L206 MainTranslator]: Completed translation [2023-11-23 02:56:40,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40 WrapperNode [2023-11-23 02:56:40,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 02:56:40,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 02:56:40,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 02:56:40,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 02:56:40,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,398 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-11-23 02:56:40,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 02:56:40,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 02:56:40,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 02:56:40,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 02:56:40,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 02:56:40,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 02:56:40,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 02:56:40,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 02:56:40,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (1/1) ... [2023-11-23 02:56:40,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 02:56:40,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:56:40,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 02:56:40,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 02:56:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 02:56:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 02:56:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 02:56:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 02:56:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 02:56:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-23 02:56:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-23 02:56:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-23 02:56:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-23 02:56:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 02:56:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 02:56:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 02:56:40,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 02:56:40,552 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 02:56:40,685 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 02:56:40,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 02:56:40,855 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 02:56:40,925 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 02:56:40,926 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 02:56:40,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:56:40 BoogieIcfgContainer [2023-11-23 02:56:40,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 02:56:40,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 02:56:40,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 02:56:40,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 02:56:40,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:56:39" (1/3) ... [2023-11-23 02:56:40,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7146d80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:56:40, skipping insertion in model container [2023-11-23 02:56:40,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:56:40" (2/3) ... [2023-11-23 02:56:40,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7146d80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:56:40, skipping insertion in model container [2023-11-23 02:56:40,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:56:40" (3/3) ... [2023-11-23 02:56:40,932 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2023-11-23 02:56:40,938 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 02:56:40,945 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 02:56:40,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 02:56:40,946 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 02:56:41,009 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 02:56:41,037 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:56:41,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-23 02:56:41,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-23 02:56:41,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-23 02:56:41,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-23 02:56:41,136 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-23 02:56:41,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-23 02:56:41,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f1111d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 02:56:41,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 02:56:41,319 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:56:41,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:56:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash 590027642, now seen corresponding path program 1 times [2023-11-23 02:56:41,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:56:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165991934] [2023-11-23 02:56:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:56:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:56:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:56:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:56:41,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:56:41,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165991934] [2023-11-23 02:56:41,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165991934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:56:41,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:56:41,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 02:56:41,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467520837] [2023-11-23 02:56:41,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:56:41,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 02:56:41,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:56:41,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 02:56:41,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 02:56:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:56:41,841 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:56:41,842 INFO L496 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) [2023-11-23 02:56:41,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:56:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 02:56:41,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 02:56:41,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:56:41,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:56:41,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2069062807, now seen corresponding path program 1 times [2023-11-23 02:56:41,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:56:41,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117094437] [2023-11-23 02:56:41,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:56:41,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:56:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:56:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:56:42,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:56:42,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117094437] [2023-11-23 02:56:42,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117094437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:56:42,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:56:42,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 02:56:42,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182133480] [2023-11-23 02:56:42,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:56:42,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 02:56:42,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:56:42,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 02:56:42,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 02:56:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:56:42,150 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:56:42,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 02:56:42,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 02:56:42,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:56:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 02:56:42,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 02:56:42,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 02:56:42,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-23 02:56:42,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 02:56:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1955023437, now seen corresponding path program 2 times [2023-11-23 02:56:42,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 02:56:42,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223006466] [2023-11-23 02:56:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 02:56:42,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 02:56:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 02:56:42,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 02:56:42,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 02:56:42,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223006466] [2023-11-23 02:56:42,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223006466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 02:56:42,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 02:56:42,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 02:56:42,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844030300] [2023-11-23 02:56:42,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 02:56:42,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 02:56:42,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 02:56:42,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 02:56:42,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 02:56:42,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:56:42,516 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-23 02:56:42,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 02:56:42,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-23 02:56:42,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-23 02:56:42,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-23 02:56:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 02:56:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 02:56:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 02:56:42,612 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-23 02:56:42,613 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-23 02:56:42,613 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-23 02:56:42,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 02:56:42,624 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-23 02:56:42,626 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 02:56:42,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 02:56:42,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:56:42 BasicIcfg [2023-11-23 02:56:42,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 02:56:42,630 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 02:56:42,630 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 02:56:42,630 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 02:56:42,631 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:56:40" (3/4) ... [2023-11-23 02:56:42,632 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 02:56:42,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-23 02:56:42,635 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-23 02:56:42,641 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-23 02:56:42,641 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 02:56:42,641 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 02:56:42,641 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 02:56:42,712 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-23 02:56:42,713 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2023-11-23 02:56:42,713 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 02:56:42,714 INFO L158 Benchmark]: Toolchain (without parser) took 2824.61ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 67.7MB in the beginning and 107.5MB in the end (delta: -39.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-23 02:56:42,714 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 02:56:42,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.87ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 67.6MB in the beginning and 137.8MB in the end (delta: -70.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2023-11-23 02:56:42,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.27ms. Allocated memory is still 172.0MB. Free memory was 137.8MB in the beginning and 135.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 02:56:42,715 INFO L158 Benchmark]: Boogie Preprocessor took 44.41ms. Allocated memory is still 172.0MB. Free memory was 135.6MB in the beginning and 134.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 02:56:42,715 INFO L158 Benchmark]: RCFGBuilder took 481.65ms. Allocated memory is still 172.0MB. Free memory was 134.4MB in the beginning and 114.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 02:56:42,715 INFO L158 Benchmark]: TraceAbstraction took 1701.58ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 112.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2023-11-23 02:56:42,715 INFO L158 Benchmark]: Witness Printer took 83.53ms. Allocated memory is still 172.0MB. Free memory was 112.7MB in the beginning and 107.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 02:56:42,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.87ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 67.6MB in the beginning and 137.8MB in the end (delta: -70.2MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.27ms. Allocated memory is still 172.0MB. Free memory was 137.8MB in the beginning and 135.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.41ms. Allocated memory is still 172.0MB. Free memory was 135.6MB in the beginning and 134.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 481.65ms. Allocated memory is still 172.0MB. Free memory was 134.4MB in the beginning and 114.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1701.58ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 112.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 83.53ms. Allocated memory is still 172.0MB. Free memory was 112.7MB in the beginning and 107.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 924, independent: 892, independent conditional: 573, independent unconditional: 319, dependent: 32, dependent conditional: 19, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 924, independent: 892, independent conditional: 573, independent unconditional: 319, dependent: 32, dependent conditional: 19, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 924, independent: 892, independent conditional: 573, independent unconditional: 319, dependent: 32, dependent conditional: 19, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 998, independent: 892, independent conditional: 17, independent unconditional: 875, dependent: 106, dependent conditional: 57, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 998, independent: 892, independent conditional: 17, independent unconditional: 875, dependent: 106, dependent conditional: 8, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 998, independent: 892, independent conditional: 17, independent unconditional: 875, dependent: 106, dependent conditional: 8, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 336, independent: 322, independent conditional: 3, independent unconditional: 319, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 336, independent: 316, independent conditional: 0, independent unconditional: 316, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 20, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 20, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, independent: 63, independent conditional: 10, independent unconditional: 53, dependent: 78, dependent conditional: 7, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 998, independent: 570, independent conditional: 14, independent unconditional: 556, dependent: 92, dependent conditional: 7, dependent unconditional: 85, unknown: 336, unknown conditional: 4, unknown unconditional: 332] , Statistics on independence cache: Total cache size (in pairs): 336, Positive cache size: 322, Positive conditional cache size: 3, Positive unconditional cache size: 319, Negative cache size: 14, Negative conditional cache size: 1, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 49, Maximal queried relation: 3, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 113, Number of trivial persistent sets: 57, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 332, independent: 319, independent conditional: 0, independent unconditional: 319, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 924, independent: 892, independent conditional: 573, independent unconditional: 319, dependent: 32, dependent conditional: 19, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 924, independent: 892, independent conditional: 573, independent unconditional: 319, dependent: 32, dependent conditional: 19, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 924, independent: 892, independent conditional: 573, independent unconditional: 319, dependent: 32, dependent conditional: 19, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 998, independent: 892, independent conditional: 17, independent unconditional: 875, dependent: 106, dependent conditional: 57, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 998, independent: 892, independent conditional: 17, independent unconditional: 875, dependent: 106, dependent conditional: 8, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 998, independent: 892, independent conditional: 17, independent unconditional: 875, dependent: 106, dependent conditional: 8, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 336, independent: 322, independent conditional: 3, independent unconditional: 319, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 336, independent: 316, independent conditional: 0, independent unconditional: 316, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 20, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 20, independent: 6, independent conditional: 3, independent unconditional: 3, dependent: 14, dependent conditional: 1, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, independent: 63, independent conditional: 10, independent unconditional: 53, dependent: 78, dependent conditional: 7, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 998, independent: 570, independent conditional: 14, independent unconditional: 556, dependent: 92, dependent conditional: 7, dependent unconditional: 85, unknown: 336, unknown conditional: 4, unknown unconditional: 332] , Statistics on independence cache: Total cache size (in pairs): 336, Positive cache size: 322, Positive conditional cache size: 3, Positive unconditional cache size: 319, Negative cache size: 14, Negative conditional cache size: 1, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 49, Maximal queried relation: 3, Independence queries for same thread: 0 - PositiveResult [Line: 18]: 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 5 procedures, 47 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 0.7s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-11-23 02:56:42,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 02:56:42,936 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