./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/dekker-unfair.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/pthread-atomic/dekker-unfair.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 5850bf916a69badaacd3ff4150d219aedc42421ae90c33080aafb727bc040d43 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-12 23:32:47,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 23:32:47,368 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-12 23:32:47,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 23:32:47,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 23:32:47,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 23:32:47,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 23:32:47,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 23:32:47,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 23:32:47,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 23:32:47,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 23:32:47,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 23:32:47,413 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 23:32:47,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 23:32:47,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 23:32:47,415 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 23:32:47,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 23:32:47,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 23:32:47,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 23:32:47,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 23:32:47,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 23:32:47,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 23:32:47,420 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 23:32:47,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 23:32:47,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 23:32:47,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 23:32:47,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 23:32:47,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 23:32:47,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 23:32:47,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 23:32:47,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-12 23:32:47,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 23:32:47,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 23:32:47,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 23:32:47,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 23:32:47,425 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-12 23:32:47,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 23:32:47,426 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 23:32:47,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-12 23:32:47,426 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-12 23:32:47,426 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-12 23:32:47,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5850bf916a69badaacd3ff4150d219aedc42421ae90c33080aafb727bc040d43 [2024-11-12 23:32:47,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 23:32:47,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 23:32:47,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 23:32:47,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 23:32:47,744 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 23:32:47,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-atomic/dekker-unfair.i [2024-11-12 23:32:49,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 23:32:49,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 23:32:49,480 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker-unfair.i [2024-11-12 23:32:49,502 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d47b9a92e/8fb172db6aa140c4bda6fe8d9d8b62ca/FLAG5e5b1bf05 [2024-11-12 23:32:49,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/d47b9a92e/8fb172db6aa140c4bda6fe8d9d8b62ca [2024-11-12 23:32:49,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 23:32:49,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 23:32:49,528 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 23:32:49,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 23:32:49,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 23:32:49,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:32:49" (1/1) ... [2024-11-12 23:32:49,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dbd128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:49, skipping insertion in model container [2024-11-12 23:32:49,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:32:49" (1/1) ... [2024-11-12 23:32:49,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 23:32:49,966 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker-unfair.i[32921,32934] [2024-11-12 23:32:49,975 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker-unfair.i[33157,33170] [2024-11-12 23:32:49,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 23:32:49,994 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 23:32:50,049 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker-unfair.i[32921,32934] [2024-11-12 23:32:50,051 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker-unfair.i[33157,33170] [2024-11-12 23:32:50,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 23:32:50,086 INFO L204 MainTranslator]: Completed translation [2024-11-12 23:32:50,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50 WrapperNode [2024-11-12 23:32:50,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 23:32:50,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 23:32:50,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 23:32:50,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 23:32:50,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,135 INFO L138 Inliner]: procedures = 167, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-12 23:32:50,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 23:32:50,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 23:32:50,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 23:32:50,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 23:32:50,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 23:32:50,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 23:32:50,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 23:32:50,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 23:32:50,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (1/1) ... [2024-11-12 23:32:50,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-12 23:32:50,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-11-12 23:32:50,213 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) [2024-11-12 23:32:50,216 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 [2024-11-12 23:32:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-12 23:32:50,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-12 23:32:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-12 23:32:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-12 23:32:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 23:32:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 23:32:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 23:32:50,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 23:32:50,259 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 23:32:50,453 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 23:32:50,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 23:32:50,594 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 23:32:50,595 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 23:32:50,695 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 23:32:50,695 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-12 23:32:50,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:32:50 BoogieIcfgContainer [2024-11-12 23:32:50,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 23:32:50,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 23:32:50,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 23:32:50,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 23:32:50,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:32:49" (1/3) ... [2024-11-12 23:32:50,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33970ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:32:50, skipping insertion in model container [2024-11-12 23:32:50,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:32:50" (2/3) ... [2024-11-12 23:32:50,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33970ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:32:50, skipping insertion in model container [2024-11-12 23:32:50,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:32:50" (3/3) ... [2024-11-12 23:32:50,711 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-unfair.i [2024-11-12 23:32:50,728 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 23:32:50,728 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 23:32:50,729 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 23:32:50,778 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 23:32:50,834 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 23:32:50,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-12 23:32:50,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-11-12 23:32:50,836 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) [2024-11-12 23:32:50,837 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 [2024-11-12 23:32:50,863 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-12 23:32:50,875 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork1 ======== [2024-11-12 23:32:50,881 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;@5cf19812, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 23:32:50,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 23:32:51,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:51,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:51,599 INFO L85 PathProgramCache]: Analyzing trace with hash 929659251, now seen corresponding path program 1 times [2024-11-12 23:32:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:51,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773450942] [2024-11-12 23:32:51,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:51,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 23:32:51,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:51,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773450942] [2024-11-12 23:32:51,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773450942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:51,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:51,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 23:32:51,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177826883] [2024-11-12 23:32:51,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:51,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:51,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:51,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:51,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:51,935 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:51,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2024-11-12 23:32:51,936 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:51,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 23:32:51,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:51,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:51,976 INFO L85 PathProgramCache]: Analyzing trace with hash -944434656, now seen corresponding path program 1 times [2024-11-12 23:32:51,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:51,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961430847] [2024-11-12 23:32:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:51,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:52,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 23:32:52,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:52,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961430847] [2024-11-12 23:32:52,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961430847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:52,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:52,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:52,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754350277] [2024-11-12 23:32:52,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:52,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:52,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:52,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:52,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,098 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:52,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-12 23:32:52,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 23:32:52,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:52,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:52,150 INFO L85 PathProgramCache]: Analyzing trace with hash -340957338, now seen corresponding path program 2 times [2024-11-12 23:32:52,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:52,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522395357] [2024-11-12 23:32:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:52,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 23:32:52,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:52,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522395357] [2024-11-12 23:32:52,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522395357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:52,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:52,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:52,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028666339] [2024-11-12 23:32:52,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:52,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:52,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:52,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:52,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:52,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,212 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:52,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 23:32:52,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 23:32:52,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:52,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:52,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1738016749, now seen corresponding path program 1 times [2024-11-12 23:32:52,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:52,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678126504] [2024-11-12 23:32:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:52,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 23:32:52,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:52,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678126504] [2024-11-12 23:32:52,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678126504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:52,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:52,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:52,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224686472] [2024-11-12 23:32:52,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:52,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:52,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:52,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:52,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:52,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,457 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:52,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 23:32:52,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 23:32:52,636 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:52,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:52,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2097826002, now seen corresponding path program 1 times [2024-11-12 23:32:52,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:52,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697560939] [2024-11-12 23:32:52,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:52,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 23:32:52,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:52,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697560939] [2024-11-12 23:32:52,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697560939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:52,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:52,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:52,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602814429] [2024-11-12 23:32:52,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:52,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:52,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:52,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:52,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:52,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,716 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:52,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) 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) [2024-11-12 23:32:52,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-12 23:32:52,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 23:32:52,795 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-12 23:32:52,800 INFO L317 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was SAFE (1/3) [2024-11-12 23:32:52,805 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 23:32:52,806 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-12 23:32:52,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-12 23:32:52,808 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;@5cf19812, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 23:32:52,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 23:32:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-11-12 23:32:52,815 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-12 23:32:52,817 INFO L407 BasicCegarLoop]: Path program histogram: [] [2024-11-12 23:32:52,819 INFO L317 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2024-11-12 23:32:52,822 INFO L107 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 23:32:52,823 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-12 23:32:52,823 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork0 ======== [2024-11-12 23:32:52,824 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;@5cf19812, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 23:32:52,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 23:32:52,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:52,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:52,848 INFO L85 PathProgramCache]: Analyzing trace with hash 118419616, now seen corresponding path program 1 times [2024-11-12 23:32:52,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:52,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946693566] [2024-11-12 23:32:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:52,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:52,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-12 23:32:52,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:52,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946693566] [2024-11-12 23:32:52,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946693566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:52,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:52,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 23:32:52,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8788576] [2024-11-12 23:32:52,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:52,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:52,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:52,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:52,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:52,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,892 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:52,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2024-11-12 23:32:52,894 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:52,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 23:32:52,960 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:52,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash 135202405, now seen corresponding path program 1 times [2024-11-12 23:32:52,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:52,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334072388] [2024-11-12 23:32:52,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:52,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:53,023 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 23:32:53,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:53,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334072388] [2024-11-12 23:32:53,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334072388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:53,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:53,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:53,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686533222] [2024-11-12 23:32:53,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:53,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:53,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:53,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:53,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:53,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,026 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:53,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 23:32:53,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 23:32:53,082 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:53,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:53,083 INFO L85 PathProgramCache]: Analyzing trace with hash 141273511, now seen corresponding path program 2 times [2024-11-12 23:32:53,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:53,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558290445] [2024-11-12 23:32:53,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:53,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 23:32:53,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:53,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558290445] [2024-11-12 23:32:53,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558290445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:53,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:53,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:53,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063049292] [2024-11-12 23:32:53,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:53,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:53,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:53,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,133 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:53,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 23:32:53,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 23:32:53,197 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:53,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash -298058842, now seen corresponding path program 1 times [2024-11-12 23:32:53,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:53,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094651029] [2024-11-12 23:32:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:53,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 23:32:53,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:53,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094651029] [2024-11-12 23:32:53,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094651029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:53,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:53,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:53,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378865377] [2024-11-12 23:32:53,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:53,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:53,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:53,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,238 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:53,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 23:32:53,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,238 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 23:32:53,360 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 23:32:53,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 23:32:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash 885484653, now seen corresponding path program 2 times [2024-11-12 23:32:53,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 23:32:53,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248302808] [2024-11-12 23:32:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 23:32:53,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 23:32:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 23:32:53,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 23:32:53,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 23:32:53,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248302808] [2024-11-12 23:32:53,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248302808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 23:32:53,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 23:32:53,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 23:32:53,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116898251] [2024-11-12 23:32:53,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 23:32:53,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 23:32:53,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 23:32:53,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 23:32:53,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 23:32:53,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,397 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-12 23:32:53,397 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) [2024-11-12 23:32:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-12 23:32:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 23:32:53,482 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-12 23:32:53,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 23:32:53,484 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2024-11-12 23:32:53,485 INFO L317 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork0 was SAFE (3/3) [2024-11-12 23:32:53,485 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 23:32:53,485 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 23:32:53,514 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 [2024-11-12 23:32:53,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:32:53 BasicIcfg [2024-11-12 23:32:53,515 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 23:32:53,516 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 23:32:53,516 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 23:32:53,516 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 23:32:53,516 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:32:50" (3/4) ... [2024-11-12 23:32:53,519 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 23:32:53,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-12 23:32:53,524 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-12 23:32:53,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-12 23:32:53,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-12 23:32:53,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-12 23:32:53,531 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 23:32:53,618 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-11-12 23:32:53,618 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-11-12 23:32:53,618 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 23:32:53,621 INFO L158 Benchmark]: Toolchain (without parser) took 4093.71ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 112.1MB in the beginning and 134.9MB in the end (delta: -22.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-11-12 23:32:53,621 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory was 114.6MB in the beginning and 114.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 23:32:53,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.58ms. Allocated memory is still 144.7MB. Free memory was 111.4MB in the beginning and 89.0MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-12 23:32:53,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.54ms. Allocated memory is still 144.7MB. Free memory was 89.0MB in the beginning and 86.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 23:32:53,622 INFO L158 Benchmark]: Boogie Preprocessor took 29.77ms. Allocated memory is still 144.7MB. Free memory was 86.9MB in the beginning and 85.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 23:32:53,622 INFO L158 Benchmark]: RCFGBuilder took 529.40ms. Allocated memory is still 144.7MB. Free memory was 85.6MB in the beginning and 100.2MB in the end (delta: -14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 23:32:53,622 INFO L158 Benchmark]: TraceAbstraction took 2814.07ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 99.3MB in the beginning and 139.8MB in the end (delta: -40.4MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2024-11-12 23:32:53,622 INFO L158 Benchmark]: Witness Printer took 104.41ms. Allocated memory is still 180.4MB. Free memory was 139.8MB in the beginning and 134.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 23:32:53,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 144.7MB. Free memory was 114.6MB in the beginning and 114.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.58ms. Allocated memory is still 144.7MB. Free memory was 111.4MB in the beginning and 89.0MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.54ms. Allocated memory is still 144.7MB. Free memory was 89.0MB in the beginning and 86.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.77ms. Allocated memory is still 144.7MB. Free memory was 86.9MB in the beginning and 85.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 529.40ms. Allocated memory is still 144.7MB. Free memory was 85.6MB in the beginning and 100.2MB in the end (delta: -14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2814.07ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 99.3MB in the beginning and 139.8MB in the end (delta: -40.4MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. * Witness Printer took 104.41ms. Allocated memory is still 180.4MB. Free memory was 139.8MB in the beginning and 134.9MB in the end (delta: 4.9MB). 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: 2017, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 368, dependent conditional: 340, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1745, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 96, dependent conditional: 68, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1745, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 96, dependent conditional: 68, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1877, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 228, dependent conditional: 200, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1877, independent: 1649, independent conditional: 4, independent unconditional: 1645, dependent: 228, dependent conditional: 36, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1877, independent: 1649, independent conditional: 4, independent unconditional: 1645, dependent: 228, dependent conditional: 36, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 756, independent: 720, independent conditional: 2, independent unconditional: 718, dependent: 36, dependent conditional: 8, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 756, independent: 697, independent conditional: 0, independent unconditional: 697, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 59, independent: 23, independent conditional: 2, independent unconditional: 21, dependent: 36, dependent conditional: 8, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 59, independent: 23, independent conditional: 2, independent unconditional: 21, dependent: 36, dependent conditional: 8, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 807, independent: 270, independent conditional: 22, independent unconditional: 248, dependent: 537, dependent conditional: 86, dependent unconditional: 451, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1877, independent: 929, independent conditional: 2, independent unconditional: 927, dependent: 192, dependent conditional: 28, dependent unconditional: 164, unknown: 756, unknown conditional: 10, unknown unconditional: 746] , Statistics on independence cache: Total cache size (in pairs): 756, Positive cache size: 720, Positive conditional cache size: 2, Positive unconditional cache size: 718, Negative cache size: 36, Negative conditional cache size: 8, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1043, Maximal queried relation: 4, Independence queries for same thread: 272, Persistent sets #1 benchmarks: Persistent set computation time: 0.7s, Number of persistent set computation: 179, Number of trivial persistent sets: 161, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 794, independent: 766, independent conditional: 0, independent unconditional: 766, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2017, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 368, dependent conditional: 340, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1745, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 96, dependent conditional: 68, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1745, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 96, dependent conditional: 68, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1877, independent: 1649, independent conditional: 883, independent unconditional: 766, dependent: 228, dependent conditional: 200, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1877, independent: 1649, independent conditional: 4, independent unconditional: 1645, dependent: 228, dependent conditional: 36, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1877, independent: 1649, independent conditional: 4, independent unconditional: 1645, dependent: 228, dependent conditional: 36, dependent unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 756, independent: 720, independent conditional: 2, independent unconditional: 718, dependent: 36, dependent conditional: 8, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 756, independent: 697, independent conditional: 0, independent unconditional: 697, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 59, independent: 23, independent conditional: 2, independent unconditional: 21, dependent: 36, dependent conditional: 8, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 59, independent: 23, independent conditional: 2, independent unconditional: 21, dependent: 36, dependent conditional: 8, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 807, independent: 270, independent conditional: 22, independent unconditional: 248, dependent: 537, dependent conditional: 86, dependent unconditional: 451, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1877, independent: 929, independent conditional: 2, independent unconditional: 927, dependent: 192, dependent conditional: 28, dependent unconditional: 164, unknown: 756, unknown conditional: 10, unknown unconditional: 746] , Statistics on independence cache: Total cache size (in pairs): 756, Positive cache size: 720, Positive conditional cache size: 2, Positive unconditional cache size: 718, Negative cache size: 36, Negative conditional cache size: 8, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1043, Maximal queried relation: 4, Independence queries for same thread: 272 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 166, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 164, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 164, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 749, Positive cache size: 721, Positive conditional cache size: 0, Positive unconditional cache size: 721, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 0, Independence queries for same thread: 2, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 8, Number of trivial persistent sets: 6, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 159, independent: 155, independent conditional: 0, independent unconditional: 155, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 166, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 6, dependent conditional: 2, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 5, independent unconditional: 155, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 164, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 164, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 164, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 749, Positive cache size: 721, Positive conditional cache size: 0, Positive unconditional cache size: 721, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 5, Maximal queried relation: 0, Independence queries for same thread: 2 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2313, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 413, dependent conditional: 385, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2012, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 112, dependent conditional: 84, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2012, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 112, dependent conditional: 84, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2169, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 269, dependent conditional: 241, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2169, independent: 1900, independent conditional: 6, independent unconditional: 1894, dependent: 269, dependent conditional: 49, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2169, independent: 1900, independent conditional: 6, independent unconditional: 1894, dependent: 269, dependent conditional: 49, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 116, independent: 103, independent conditional: 2, independent unconditional: 101, dependent: 13, dependent conditional: 10, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 116, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 13, dependent conditional: 10, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 13, dependent conditional: 10, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, independent: 38, independent conditional: 24, independent unconditional: 14, dependent: 114, dependent conditional: 93, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2169, independent: 1797, independent conditional: 4, independent unconditional: 1793, dependent: 256, dependent conditional: 39, dependent unconditional: 217, unknown: 116, unknown conditional: 12, unknown unconditional: 104] , Statistics on independence cache: Total cache size (in pairs): 865, Positive cache size: 824, Positive conditional cache size: 2, Positive unconditional cache size: 822, Negative cache size: 41, Negative conditional cache size: 10, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1339, Maximal queried relation: 3, Independence queries for same thread: 301, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 201, Number of trivial persistent sets: 175, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 775, independent: 747, independent conditional: 0, independent unconditional: 747, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2313, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 413, dependent conditional: 385, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2012, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 112, dependent conditional: 84, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2012, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 112, dependent conditional: 84, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2169, independent: 1900, independent conditional: 1153, independent unconditional: 747, dependent: 269, dependent conditional: 241, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2169, independent: 1900, independent conditional: 6, independent unconditional: 1894, dependent: 269, dependent conditional: 49, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2169, independent: 1900, independent conditional: 6, independent unconditional: 1894, dependent: 269, dependent conditional: 49, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 116, independent: 103, independent conditional: 2, independent unconditional: 101, dependent: 13, dependent conditional: 10, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 116, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 17, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 13, dependent conditional: 10, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 17, independent: 4, independent conditional: 2, independent unconditional: 2, dependent: 13, dependent conditional: 10, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 152, independent: 38, independent conditional: 24, independent unconditional: 14, dependent: 114, dependent conditional: 93, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2169, independent: 1797, independent conditional: 4, independent unconditional: 1793, dependent: 256, dependent conditional: 39, dependent unconditional: 217, unknown: 116, unknown conditional: 12, unknown unconditional: 104] , Statistics on independence cache: Total cache size (in pairs): 865, Positive cache size: 824, Positive conditional cache size: 2, Positive unconditional cache size: 822, Negative cache size: 41, Negative conditional cache size: 10, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1339, Maximal queried relation: 3, Independence queries for same thread: 301 - PositiveResult [Line: 759]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 774]: 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: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 67 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 33/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 67 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 67 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 29/29 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 23:32:53,668 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