./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/weaver/test-easy10.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 20:32:39,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 20:32:39,573 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 20:32:39,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 20:32:39,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 20:32:39,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 20:32:39,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 20:32:39,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 20:32:39,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 20:32:39,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 20:32:39,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 20:32:39,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 20:32:39,604 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 20:32:39,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 20:32:39,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 20:32:39,605 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 20:32:39,606 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:32:39,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:32:39,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:32:39,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 20:32:39,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 [2025-04-24 20:32:39,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 20:32:39,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 20:32:39,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 20:32:39,814 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 20:32:39,814 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 20:32:39,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/test-easy10.wvr.c [2025-04-24 20:32:40,993 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/70fa6a2d8/5f3e58f8de044dfc8bcb871d8f78e46c/FLAG316cc064b [2025-04-24 20:32:41,211 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 20:32:41,214 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2025-04-24 20:32:41,220 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/70fa6a2d8/5f3e58f8de044dfc8bcb871d8f78e46c/FLAG316cc064b [2025-04-24 20:32:42,043 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/70fa6a2d8/5f3e58f8de044dfc8bcb871d8f78e46c [2025-04-24 20:32:42,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 20:32:42,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 20:32:42,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 20:32:42,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 20:32:42,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 20:32:42,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3732b946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42, skipping insertion in model container [2025-04-24 20:32:42,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 20:32:42,215 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c[2547,2560] [2025-04-24 20:32:42,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:32:42,231 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 20:32:42,266 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c[2547,2560] [2025-04-24 20:32:42,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:32:42,280 INFO L204 MainTranslator]: Completed translation [2025-04-24 20:32:42,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42 WrapperNode [2025-04-24 20:32:42,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 20:32:42,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 20:32:42,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 20:32:42,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 20:32:42,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,312 INFO L138 Inliner]: procedures = 20, calls = 16, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2025-04-24 20:32:42,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 20:32:42,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 20:32:42,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 20:32:42,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 20:32:42,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,324 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 20:32:42,331 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 20:32:42,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 20:32:42,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 20:32:42,332 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (1/1) ... [2025-04-24 20:32:42,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:32:42,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:32:42,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 20:32:42,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 20:32:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 20:32:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 20:32:42,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 20:32:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 20:32:42,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 20:32:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-24 20:32:42,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-24 20:32:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-24 20:32:42,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-24 20:32:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 20:32:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 20:32:42,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 20:32:42,381 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 20:32:42,445 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 20:32:42,446 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 20:32:42,589 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 20:32:42,590 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 20:32:42,707 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 20:32:42,707 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 20:32:42,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:32:42 BoogieIcfgContainer [2025-04-24 20:32:42,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 20:32:42,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 20:32:42,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 20:32:42,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 20:32:42,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 08:32:42" (1/3) ... [2025-04-24 20:32:42,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a36d8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:32:42, skipping insertion in model container [2025-04-24 20:32:42,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:32:42" (2/3) ... [2025-04-24 20:32:42,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a36d8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:32:42, skipping insertion in model container [2025-04-24 20:32:42,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:32:42" (3/3) ... [2025-04-24 20:32:42,714 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2025-04-24 20:32:42,724 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 20:32:42,725 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy10.wvr.c that has 5 procedures, 61 locations, 56 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-24 20:32:42,726 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 20:32:42,777 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-24 20:32:42,806 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:32:42,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 20:32:42,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:32:42,813 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) [2025-04-24 20:32:42,815 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 [2025-04-24 20:32:42,871 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 20:32:42,882 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 20:32:42,889 INFO L340 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;@6901ed2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:32:42,890 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-24 20:32:43,290 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-24 20:32:43,290 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:32:43,291 INFO L139 ounterexampleChecker]: Examining path program with hash -410708408, occurence #1 [2025-04-24 20:32:43,291 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:32:43,291 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:32:43,293 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:32:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash 891601212, now seen corresponding path program 1 times [2025-04-24 20:32:43,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:32:43,298 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680810461] [2025-04-24 20:32:43,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:32:43,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:32:43,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-04-24 20:32:43,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-24 20:32:43,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:32:43,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:32:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:32:43,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:32:43,680 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680810461] [2025-04-24 20:32:43,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680810461] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:32:43,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:32:43,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:32:43,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386721416] [2025-04-24 20:32:43,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:32:43,684 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:32:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:32:43,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:32:43,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:32:43,698 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:43,700 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:32:43,701 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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) [2025-04-24 20:32:43,701 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:43,832 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:43,832 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 20:32:43,832 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-24 20:32:43,832 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:32:43,833 INFO L139 ounterexampleChecker]: Examining path program with hash -1918820038, occurence #1 [2025-04-24 20:32:43,833 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:32:43,833 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:32:43,833 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:32:43,833 INFO L85 PathProgramCache]: Analyzing trace with hash -578434756, now seen corresponding path program 2 times [2025-04-24 20:32:43,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:32:43,833 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723964003] [2025-04-24 20:32:43,833 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:32:43,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:32:43,845 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 55 statements into 1 equivalence classes. [2025-04-24 20:32:43,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-24 20:32:43,862 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:32:43,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:32:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:32:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:32:44,087 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723964003] [2025-04-24 20:32:44,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723964003] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:32:44,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:32:44,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:32:44,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140972646] [2025-04-24 20:32:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:32:44,088 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:32:44,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:32:44,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:32:44,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:32:44,090 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:44,090 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:32:44,090 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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) [2025-04-24 20:32:44,091 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:44,091 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:44,209 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:44,209 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:44,210 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 20:32:44,210 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-24 20:32:44,210 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:32:44,210 INFO L139 ounterexampleChecker]: Examining path program with hash -1769504782, occurence #1 [2025-04-24 20:32:44,210 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:32:44,210 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:32:44,210 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:32:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1555952452, now seen corresponding path program 3 times [2025-04-24 20:32:44,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:32:44,210 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719856530] [2025-04-24 20:32:44,210 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:32:44,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:32:44,219 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 1 equivalence classes. [2025-04-24 20:32:44,288 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-24 20:32:44,288 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-24 20:32:44,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:32:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:32:45,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:32:45,790 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719856530] [2025-04-24 20:32:45,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719856530] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:32:45,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:32:45,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-04-24 20:32:45,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210897248] [2025-04-24 20:32:45,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:32:45,790 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-24 20:32:45,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:32:45,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-24 20:32:45,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-04-24 20:32:45,791 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:45,791 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:32:45,791 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 states have internal predecessors, (55), 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) [2025-04-24 20:32:45,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:45,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:45,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:46,417 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,417 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,418 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:32:46,418 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 20:32:46,418 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-24 20:32:46,418 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:32:46,418 INFO L139 ounterexampleChecker]: Examining path program with hash 60158219, occurence #1 [2025-04-24 20:32:46,418 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:32:46,418 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:32:46,418 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:32:46,418 INFO L85 PathProgramCache]: Analyzing trace with hash -694186372, now seen corresponding path program 4 times [2025-04-24 20:32:46,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:32:46,419 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98696295] [2025-04-24 20:32:46,419 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:32:46,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:32:46,425 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 55 statements into 2 equivalence classes. [2025-04-24 20:32:46,433 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 55 of 55 statements. [2025-04-24 20:32:46,433 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 20:32:46,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:32:46,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:32:46,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:32:46,515 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98696295] [2025-04-24 20:32:46,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98696295] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:32:46,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:32:46,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:32:46,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893121517] [2025-04-24 20:32:46,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:32:46,515 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:32:46,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:32:46,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:32:46,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:32:46,516 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:46,516 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:32:46,516 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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) [2025-04-24 20:32:46,516 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,516 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,516 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:32:46,516 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:46,902 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,902 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,903 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:32:46,903 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,903 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 20:32:46,903 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-24 20:32:46,903 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:32:46,903 INFO L139 ounterexampleChecker]: Examining path program with hash -1074487602, occurence #1 [2025-04-24 20:32:46,903 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:32:46,903 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:32:46,904 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:32:46,904 INFO L85 PathProgramCache]: Analyzing trace with hash 424646844, now seen corresponding path program 5 times [2025-04-24 20:32:46,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:32:46,904 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332761145] [2025-04-24 20:32:46,904 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:32:46,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:32:46,911 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 55 statements into 1 equivalence classes. [2025-04-24 20:32:46,917 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-04-24 20:32:46,918 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 20:32:46,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:32:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:32:46,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:32:46,976 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332761145] [2025-04-24 20:32:46,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332761145] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:32:46,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:32:46,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 20:32:46,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818199244] [2025-04-24 20:32:46,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:32:46,976 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 20:32:46,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:32:46,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 20:32:46,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 20:32:46,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:46,977 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:32:46,977 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 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) [2025-04-24 20:32:46,977 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,977 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,977 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:32:46,977 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:46,978 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:32:47,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:47,111 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:47,111 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:32:47,111 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:47,111 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 20:32:47,114 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-04-24 20:32:47,114 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-04-24 20:32:47,114 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-04-24 20:32:47,114 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-04-24 20:32:47,114 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-04-24 20:32:47,114 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 20:32:47,120 INFO L422 BasicCegarLoop]: Path program histogram: [5] [2025-04-24 20:32:47,123 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 20:32:47,123 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 20:32:47,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-24 20:32:47,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 08:32:47 BasicIcfg [2025-04-24 20:32:47,133 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 20:32:47,134 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 20:32:47,134 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 20:32:47,134 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 20:32:47,134 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:32:42" (3/4) ... [2025-04-24 20:32:47,136 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-24 20:32:47,138 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-04-24 20:32:47,138 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-04-24 20:32:47,138 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-04-24 20:32:47,138 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2025-04-24 20:32:47,142 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2025-04-24 20:32:47,143 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-04-24 20:32:47,143 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-24 20:32:47,143 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-24 20:32:47,202 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 20:32:47,202 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 20:32:47,202 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 20:32:47,203 INFO L158 Benchmark]: Toolchain (without parser) took 5156.67ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 112.9MB in the beginning and 52.9MB in the end (delta: 59.9MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2025-04-24 20:32:47,203 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 20:32:47,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.35ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 98.8MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-24 20:32:47,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.56ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 20:32:47,204 INFO L158 Benchmark]: Boogie Preprocessor took 18.06ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 20:32:47,204 INFO L158 Benchmark]: RCFGBuilder took 376.94ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 66.8MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-24 20:32:47,204 INFO L158 Benchmark]: TraceAbstraction took 4423.97ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 66.3MB in the beginning and 58.7MB in the end (delta: 7.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2025-04-24 20:32:47,204 INFO L158 Benchmark]: Witness Printer took 68.16ms. Allocated memory is still 176.2MB. Free memory was 58.7MB in the beginning and 52.9MB in the end (delta: 5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 20:32:47,205 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.35ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 98.8MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.56ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.06ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 376.94ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 66.8MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4423.97ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 66.3MB in the beginning and 58.7MB in the end (delta: 7.6MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Witness Printer took 68.16ms. Allocated memory is still 176.2MB. Free memory was 58.7MB in the beginning and 52.9MB in the end (delta: 5.7MB). There was no memory consumed. 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: 8129, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 42, dependent conditional: 14, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8129, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 42, dependent conditional: 14, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8129, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 42, dependent conditional: 14, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8158, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 71, dependent conditional: 43, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8158, independent: 8087, independent conditional: 0, independent unconditional: 8087, dependent: 71, dependent conditional: 10, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8158, independent: 8087, independent conditional: 0, independent unconditional: 8087, dependent: 71, dependent conditional: 10, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1469, independent: 1439, independent conditional: 0, independent unconditional: 1439, dependent: 30, dependent conditional: 2, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1469, independent: 1432, independent conditional: 0, independent unconditional: 1432, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 37, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 30, dependent conditional: 2, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 30, dependent conditional: 2, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 492, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 402, dependent conditional: 14, dependent unconditional: 388, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 8158, independent: 6648, independent conditional: 0, independent unconditional: 6648, dependent: 41, dependent conditional: 8, dependent unconditional: 33, unknown: 1469, unknown conditional: 2, unknown unconditional: 1467] , Statistics on independence cache: Total cache size (in pairs): 1469, Positive cache size: 1439, Positive conditional cache size: 0, Positive unconditional cache size: 1439, Negative cache size: 30, Negative conditional cache size: 2, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6681, Maximal queried relation: 4, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.7s, Number of persistent set computation: 974, Number of trivial persistent sets: 679, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1467, independent: 1439, independent conditional: 0, independent unconditional: 1439, 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: 8129, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 42, dependent conditional: 14, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8129, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 42, dependent conditional: 14, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8129, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 42, dependent conditional: 14, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8158, independent: 8087, independent conditional: 6648, independent unconditional: 1439, dependent: 71, dependent conditional: 43, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8158, independent: 8087, independent conditional: 0, independent unconditional: 8087, dependent: 71, dependent conditional: 10, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8158, independent: 8087, independent conditional: 0, independent unconditional: 8087, dependent: 71, dependent conditional: 10, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1469, independent: 1439, independent conditional: 0, independent unconditional: 1439, dependent: 30, dependent conditional: 2, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1469, independent: 1432, independent conditional: 0, independent unconditional: 1432, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 37, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 30, dependent conditional: 2, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 30, dependent conditional: 2, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 492, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 402, dependent conditional: 14, dependent unconditional: 388, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 8158, independent: 6648, independent conditional: 0, independent unconditional: 6648, dependent: 41, dependent conditional: 8, dependent unconditional: 33, unknown: 1469, unknown conditional: 2, unknown unconditional: 1467] , Statistics on independence cache: Total cache size (in pairs): 1469, Positive cache size: 1439, Positive conditional cache size: 0, Positive unconditional cache size: 1439, Negative cache size: 30, Negative conditional cache size: 2, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6681, Maximal queried relation: 4, Independence queries for same thread: 0 - PositiveResult [Line: 103]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 101 locations, 100 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 1.8s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 1510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 0, ConditionCalculationTime [ms]: 0, ConditionCalculations: 0, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-24 20:32:47,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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