./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-symm.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/chl-nzb-file-symm.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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 19:43:58,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 19:43:58,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 19:43:58,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 19:43:58,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 19:43:58,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 19:43:58,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 19:43:58,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 19:43:58,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 19:43:58,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 19:43:58,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 19:43:58,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 19:43:58,209 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 19:43:58,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 19:43:58,210 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 19:43:58,211 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 19:43:58,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:43:58,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:43:58,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:43:58,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:43:58,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 19:43:58,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:43:58,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 19:43:58,212 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 19:43:58,213 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 19:43:58,213 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 -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2025-04-24 19:43:58,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 19:43:58,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 19:43:58,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 19:43:58,435 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 19:43:58,436 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 19:43:58,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-04-24 19:43:59,720 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/313f37469/91fc0b4903bd4078a893b9b4e00adc54/FLAG9b1877f6f [2025-04-24 19:43:59,911 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 19:43:59,911 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-04-24 19:43:59,917 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/313f37469/91fc0b4903bd4078a893b9b4e00adc54/FLAG9b1877f6f [2025-04-24 19:44:00,721 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/313f37469/91fc0b4903bd4078a893b9b4e00adc54 [2025-04-24 19:44:00,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 19:44:00,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 19:44:00,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 19:44:00,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 19:44:00,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 19:44:00,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731ff348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00, skipping insertion in model container [2025-04-24 19:44:00,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,749 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 19:44:00,919 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/chl-nzb-file-symm.wvr.c[4955,4968] [2025-04-24 19:44:00,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:44:00,935 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 19:44:00,978 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/chl-nzb-file-symm.wvr.c[4955,4968] [2025-04-24 19:44:00,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:44:00,992 INFO L204 MainTranslator]: Completed translation [2025-04-24 19:44:00,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00 WrapperNode [2025-04-24 19:44:00,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 19:44:00,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 19:44:00,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 19:44:00,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 19:44:00,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,033 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 21, calls inlined = 29, statements flattened = 399 [2025-04-24 19:44:01,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 19:44:01,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 19:44:01,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 19:44:01,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 19:44:01,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,057 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,058 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 19:44:01,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 19:44:01,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 19:44:01,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 19:44:01,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:01,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:44:01,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:01,101 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 19:44:01,103 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 19:44:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 19:44:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 19:44:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 19:44:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 19:44:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 19:44:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 19:44:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 19:44:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 19:44:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 19:44:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 19:44:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 19:44:01,123 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 19:44:01,226 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 19:44:01,228 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 19:44:01,682 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 19:44:01,683 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 19:44:02,093 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 19:44:02,094 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-24 19:44:02,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:44:02 BoogieIcfgContainer [2025-04-24 19:44:02,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 19:44:02,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 19:44:02,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 19:44:02,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 19:44:02,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 07:44:00" (1/3) ... [2025-04-24 19:44:02,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f63114a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:44:02, skipping insertion in model container [2025-04-24 19:44:02,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (2/3) ... [2025-04-24 19:44:02,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f63114a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:44:02, skipping insertion in model container [2025-04-24 19:44:02,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:44:02" (3/3) ... [2025-04-24 19:44:02,100 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2025-04-24 19:44:02,110 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 19:44:02,112 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-symm.wvr.c that has 3 procedures, 27 locations, 32 edges, 1 initial locations, 4 loop locations, and 1 error locations. [2025-04-24 19:44:02,112 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 19:44:02,175 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 19:44:02,209 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:44:02,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 19:44:02,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:02,212 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 19:44:02,254 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 19:44:02,317 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 19:44:02,330 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 19:44:02,338 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;@4d3ced45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:44:02,338 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 19:44:02,456 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:02,456 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:02,456 INFO L139 ounterexampleChecker]: Examining path program with hash -1000478885, occurence #1 [2025-04-24 19:44:02,456 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:02,456 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:02,460 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:02,460 INFO L85 PathProgramCache]: Analyzing trace with hash 107983675, now seen corresponding path program 1 times [2025-04-24 19:44:02,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:02,466 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288927781] [2025-04-24 19:44:02,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:02,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:02,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-24 19:44:02,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-24 19:44:02,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:02,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:02,818 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 19:44:02,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:02,819 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288927781] [2025-04-24 19:44:02,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288927781] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:02,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:02,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 19:44:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330610720] [2025-04-24 19:44:02,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:02,824 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:02,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:02,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:02,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:02,839 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:02,841 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:02,841 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 19:44:02,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:02,914 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:02,914 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 19:44:02,915 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:02,915 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:02,915 INFO L139 ounterexampleChecker]: Examining path program with hash -1059384916, occurence #1 [2025-04-24 19:44:02,915 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:02,915 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:02,915 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:02,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1504886119, now seen corresponding path program 1 times [2025-04-24 19:44:02,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:02,915 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739407178] [2025-04-24 19:44:02,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:02,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:02,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-24 19:44:02,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-24 19:44:02,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:02,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 19:44:03,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:03,086 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739407178] [2025-04-24 19:44:03,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739407178] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:03,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:03,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:44:03,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537876942] [2025-04-24 19:44:03,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:03,087 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:03,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:03,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:03,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:03,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,087 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:03,088 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 19:44:03,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,173 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,173 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,174 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 19:44:03,174 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:03,174 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:03,174 INFO L139 ounterexampleChecker]: Examining path program with hash -629300192, occurence #1 [2025-04-24 19:44:03,174 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:03,174 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:03,175 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:03,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1805426209, now seen corresponding path program 1 times [2025-04-24 19:44:03,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:03,175 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541435559] [2025-04-24 19:44:03,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:03,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:03,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-24 19:44:03,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-24 19:44:03,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:03,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 19:44:03,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:03,324 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541435559] [2025-04-24 19:44:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541435559] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:03,324 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910659902] [2025-04-24 19:44:03,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:03,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:03,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:03,327 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:03,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 19:44:03,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-24 19:44:03,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-24 19:44:03,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:03,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:03,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-24 19:44:03,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 19:44:03,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:03,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 19:44:03,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910659902] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:03,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:03,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-04-24 19:44:03,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777540774] [2025-04-24 19:44:03,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:03,506 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-24 19:44:03,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:03,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-24 19:44:03,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-04-24 19:44:03,507 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,507 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:03,507 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 7 states have internal predecessors, (31), 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 19:44:03,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,507 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,610 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,611 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,611 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:03,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-24 19:44:03,812 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-04-24 19:44:03,812 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:03,812 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:03,812 INFO L139 ounterexampleChecker]: Examining path program with hash -629300192, occurence #2 [2025-04-24 19:44:03,812 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:03,813 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:03,813 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,813 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-24 19:44:03,813 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,813 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 19:44:03,824 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-24 19:44:03,825 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 19:44:03,825 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-24 19:44:03,825 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 19:44:03,825 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 19:44:03,825 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-24 19:44:03,825 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:03,825 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:03,825 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:03,826 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1341918717, now seen corresponding path program 2 times [2025-04-24 19:44:03,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:03,826 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073767146] [2025-04-24 19:44:03,826 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:44:03,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:03,845 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-04-24 19:44:03,859 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 31 statements. [2025-04-24 19:44:03,860 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 19:44:03,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-04-24 19:44:03,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:03,997 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073767146] [2025-04-24 19:44:03,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073767146] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:03,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:03,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:44:03,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478635421] [2025-04-24 19:44:03,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:03,999 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:03,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:03,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:03,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:03,999 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,999 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:03,999 INFO L486 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) [2025-04-24 19:44:04,000 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,000 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,000 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,000 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,073 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,074 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,074 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,074 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,074 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 19:44:04,075 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:04,075 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:04,075 INFO L139 ounterexampleChecker]: Examining path program with hash -1251477189, occurence #1 [2025-04-24 19:44:04,076 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:04,076 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:04,076 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:04,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1805693471, now seen corresponding path program 1 times [2025-04-24 19:44:04,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:04,076 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905930859] [2025-04-24 19:44:04,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:04,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:04,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-24 19:44:04,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-24 19:44:04,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:04,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-24 19:44:04,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:04,331 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905930859] [2025-04-24 19:44:04,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905930859] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:04,331 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511249264] [2025-04-24 19:44:04,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:04,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:04,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:04,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:04,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 19:44:04,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-24 19:44:04,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-24 19:44:04,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:04,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:04,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 19:44:04,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-24 19:44:04,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-24 19:44:04,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511249264] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:04,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:04,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2025-04-24 19:44:04,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220477523] [2025-04-24 19:44:04,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:04,612 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-24 19:44:04,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:04,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-24 19:44:04,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2025-04-24 19:44:04,613 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,613 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:04,614 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 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 19:44:04,614 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,614 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,614 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,614 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,750 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,750 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,751 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,751 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,751 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:04,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-24 19:44:04,951 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:04,952 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:04,952 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:04,952 INFO L139 ounterexampleChecker]: Examining path program with hash -1251477189, occurence #2 [2025-04-24 19:44:04,952 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:04,952 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:04,952 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,952 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:04,953 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,953 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:44:04,953 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,953 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:44:04,953 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,953 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-24 19:44:04,953 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,953 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 19:44:04,953 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,953 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-24 19:44:04,953 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,953 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-24 19:44:04,953 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,953 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:44:04,953 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,953 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:04,953 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:04,953 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:04,953 INFO L85 PathProgramCache]: Analyzing trace with hash -403309757, now seen corresponding path program 2 times [2025-04-24 19:44:04,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:04,953 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835713840] [2025-04-24 19:44:04,953 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:44:04,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:04,973 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-04-24 19:44:04,983 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 35 statements. [2025-04-24 19:44:04,983 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 19:44:04,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:05,090 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:05,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:05,090 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835713840] [2025-04-24 19:44:05,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835713840] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:05,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:05,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:44:05,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779841817] [2025-04-24 19:44:05,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:05,091 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:05,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:05,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:05,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:05,091 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:05,091 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:05,092 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 19:44:05,092 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,092 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,092 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:05,092 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,092 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:05,092 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:05,145 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,145 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,146 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:05,146 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,146 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:05,146 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,146 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-24 19:44:05,146 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:05,146 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:05,146 INFO L139 ounterexampleChecker]: Examining path program with hash 5289752, occurence #1 [2025-04-24 19:44:05,147 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:05,147 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:05,147 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2090720024, now seen corresponding path program 1 times [2025-04-24 19:44:05,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:05,147 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629125083] [2025-04-24 19:44:05,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:05,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:05,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-24 19:44:05,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-24 19:44:05,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:05,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:44:11,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:11,593 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629125083] [2025-04-24 19:44:11,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629125083] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:11,593 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423267938] [2025-04-24 19:44:11,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:11,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:11,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:11,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 19:44:11,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-24 19:44:11,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-24 19:44:11,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:11,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:11,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-04-24 19:44:11,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:12,631 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:12,632 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 326 treesize of output 278 [2025-04-24 19:44:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:13,694 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:15,950 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:15,951 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 402 treesize of output 368 [2025-04-24 19:44:16,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:16,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423267938] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:16,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:16,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8, 8] total 34 [2025-04-24 19:44:16,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532438021] [2025-04-24 19:44:16,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:16,910 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-04-24 19:44:16,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:16,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-04-24 19:44:16,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1019, Unknown=0, NotChecked=0, Total=1122 [2025-04-24 19:44:16,911 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:16,911 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:16,912 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 34 states have internal predecessors, (86), 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 19:44:16,912 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:16,912 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:16,912 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:16,912 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:16,912 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:16,912 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:16,912 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:18,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:44:18,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-24 19:44:18,240 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:18,240 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:18,240 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:18,240 INFO L139 ounterexampleChecker]: Examining path program with hash 5289752, occurence #2 [2025-04-24 19:44:18,240 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:18,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:18,240 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:18,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:18,240 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:18,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:44:18,241 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:18,241 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:44:18,241 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:18,241 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 19:44:18,241 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:18,241 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-04-24 19:44:18,241 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:18,241 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:44:18,241 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:18,241 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 19:44:18,241 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:18,241 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-24 19:44:18,241 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:18,241 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 19:44:18,241 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:18,241 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:18,241 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:18,241 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1826065413, now seen corresponding path program 2 times [2025-04-24 19:44:18,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:18,241 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284536071] [2025-04-24 19:44:18,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:44:18,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:18,260 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-04-24 19:44:18,489 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-04-24 19:44:18,490 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:44:18,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:44:21,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:21,438 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284536071] [2025-04-24 19:44:21,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284536071] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:21,438 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081144565] [2025-04-24 19:44:21,439 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:44:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:21,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:21,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:21,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 19:44:21,533 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-04-24 19:44:21,573 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-04-24 19:44:21,573 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:44:21,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:21,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-04-24 19:44:21,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:22,177 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:22,178 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 108 [2025-04-24 19:44:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:22,397 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:22,780 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:22,780 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 168 treesize of output 194 [2025-04-24 19:44:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:23,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081144565] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:23,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 10] total 40 [2025-04-24 19:44:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622737475] [2025-04-24 19:44:23,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:23,149 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-04-24 19:44:23,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:23,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-04-24 19:44:23,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1424, Unknown=0, NotChecked=0, Total=1560 [2025-04-24 19:44:23,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:23,150 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:23,150 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.225) internal successors, (89), 40 states have internal predecessors, (89), 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 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-24 19:44:23,150 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:24,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:24,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-24 19:44:24,558 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-04-24 19:44:24,558 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:24,558 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:24,558 INFO L139 ounterexampleChecker]: Examining path program with hash -1251477189, occurence #3 [2025-04-24 19:44:24,558 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:24,558 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:24,558 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:44:24,558 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:44:24,558 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-24 19:44:24,558 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-24 19:44:24,558 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-04-24 19:44:24,558 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 19:44:24,558 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:24,558 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-04-24 19:44:24,558 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:24,558 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:24,558 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:24,559 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:24,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1574746698, now seen corresponding path program 3 times [2025-04-24 19:44:24,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:24,559 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33560802] [2025-04-24 19:44:24,559 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 19:44:24,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:24,586 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 4 equivalence classes. [2025-04-24 19:44:24,693 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 33 of 39 statements. [2025-04-24 19:44:24,693 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 19:44:24,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:26,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:26,134 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33560802] [2025-04-24 19:44:26,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33560802] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:26,134 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645200746] [2025-04-24 19:44:26,134 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 19:44:26,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:26,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:26,136 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:26,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-24 19:44:26,248 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 4 equivalence classes. [2025-04-24 19:44:26,302 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 33 of 39 statements. [2025-04-24 19:44:26,302 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 19:44:26,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:26,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-04-24 19:44:26,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:26,818 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:26,819 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 137 [2025-04-24 19:44:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:27,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:27,718 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:27,719 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 95 [2025-04-24 19:44:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:27,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645200746] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:27,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:27,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 10] total 28 [2025-04-24 19:44:27,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046809738] [2025-04-24 19:44:27,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:27,789 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-04-24 19:44:27,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:27,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-04-24 19:44:27,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2025-04-24 19:44:27,790 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:27,790 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:27,791 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.6785714285714284) internal successors, (75), 28 states have internal predecessors, (75), 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 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:27,791 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:28,311 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:28,312 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:28,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-24 19:44:28,512 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:28,512 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:28,512 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:28,512 INFO L139 ounterexampleChecker]: Examining path program with hash 5289752, occurence #3 [2025-04-24 19:44:28,513 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:28,513 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:28,513 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:44:28,513 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:44:28,513 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-24 19:44:28,513 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:44:28,513 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-04-24 19:44:28,513 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 19:44:28,513 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:28,513 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2025-04-24 19:44:28,513 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:28,513 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:28,513 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:28,513 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash 445988399, now seen corresponding path program 4 times [2025-04-24 19:44:28,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:28,513 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921604567] [2025-04-24 19:44:28,513 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 19:44:28,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:28,528 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 41 statements into 2 equivalence classes. [2025-04-24 19:44:28,675 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 19:44:28,676 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 19:44:28,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:44:34,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:34,531 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921604567] [2025-04-24 19:44:34,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921604567] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:34,531 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839101338] [2025-04-24 19:44:34,531 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 19:44:34,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:34,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:34,534 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:34,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-24 19:44:34,661 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 41 statements into 2 equivalence classes. [2025-04-24 19:44:34,708 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 19:44:34,708 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 19:44:34,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:34,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 54 conjuncts are in the unsatisfiable core [2025-04-24 19:44:34,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:35,557 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:35,558 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 338 treesize of output 278 [2025-04-24 19:44:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:36,380 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:38,204 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:38,205 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 378 treesize of output 356 [2025-04-24 19:44:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:39,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839101338] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:39,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:39,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 12, 10] total 41 [2025-04-24 19:44:39,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628147677] [2025-04-24 19:44:39,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:39,137 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-04-24 19:44:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:39,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-04-24 19:44:39,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1489, Unknown=0, NotChecked=0, Total=1640 [2025-04-24 19:44:39,139 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:39,139 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:39,140 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.5121951219512195) internal successors, (103), 41 states have internal predecessors, (103), 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 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:39,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:40,688 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:40,689 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-24 19:44:40,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-24 19:44:40,889 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-04-24 19:44:40,890 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:40,890 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:40,890 INFO L139 ounterexampleChecker]: Examining path program with hash 5289752, occurence #4 [2025-04-24 19:44:40,890 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-24 19:44:40,890 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 19:44:40,890 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:44:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-04-24 19:44:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 19:44:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2025-04-24 19:44:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:44:40,890 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:40,890 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 19:44:40,890 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:40,890 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:40,891 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:40,891 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:40,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1824915966, now seen corresponding path program 5 times [2025-04-24 19:44:40,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:40,891 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824308385] [2025-04-24 19:44:40,891 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 19:44:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:40,909 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 44 statements into 4 equivalence classes. [2025-04-24 19:44:41,003 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 44 of 44 statements. [2025-04-24 19:44:41,003 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-04-24 19:44:41,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-04-24 19:44:41,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:41,124 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824308385] [2025-04-24 19:44:41,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824308385] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:41,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:41,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-24 19:44:41,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076236888] [2025-04-24 19:44:41,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:41,124 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-24 19:44:41,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:41,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-24 19:44:41,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-04-24 19:44:41,126 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:41,126 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:41,126 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-04-24 19:44:41,126 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:43,180 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-04-24 19:44:43,181 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:44:43,181 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-24 19:44:43,181 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:43,181 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:43,181 INFO L139 ounterexampleChecker]: Examining path program with hash -1251477189, occurence #4 [2025-04-24 19:44:43,181 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:43,181 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:43,181 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:43,181 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:43,181 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:43,181 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:44:43,181 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:43,181 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:44:43,182 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:43,182 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-04-24 19:44:43,182 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:43,182 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 19:44:43,182 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:43,182 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 19:44:43,182 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:43,182 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2025-04-24 19:44:43,182 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:43,182 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:44:43,182 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:43,182 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:43,182 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:43,182 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash -189882927, now seen corresponding path program 6 times [2025-04-24 19:44:43,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:43,182 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595379183] [2025-04-24 19:44:43,182 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 19:44:43,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:43,197 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 43 statements into 4 equivalence classes. [2025-04-24 19:44:43,351 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 19:44:43,351 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-04-24 19:44:43,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:44:46,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:46,304 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595379183] [2025-04-24 19:44:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595379183] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:46,304 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756446321] [2025-04-24 19:44:46,304 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 19:44:46,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:46,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:46,305 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:46,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-24 19:44:46,423 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 43 statements into 4 equivalence classes. [2025-04-24 19:44:46,478 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 19:44:46,478 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-04-24 19:44:46,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:46,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 49 conjuncts are in the unsatisfiable core [2025-04-24 19:44:46,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:47,123 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:47,123 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 137 [2025-04-24 19:44:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:47,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:47,974 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:47,974 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 95 [2025-04-24 19:44:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:48,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756446321] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:48,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:48,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15, 13] total 48 [2025-04-24 19:44:48,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307051938] [2025-04-24 19:44:48,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:48,175 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-04-24 19:44:48,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:48,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-04-24 19:44:48,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=2084, Unknown=0, NotChecked=0, Total=2256 [2025-04-24 19:44:48,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:48,176 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:48,176 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.0625) internal successors, (99), 48 states have internal predecessors, (99), 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 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:44:48,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:51,093 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:51,093 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:51,093 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:44:51,094 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-04-24 19:44:51,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-24 19:44:51,294 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:51,295 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:51,295 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:51,295 INFO L139 ounterexampleChecker]: Examining path program with hash 5289752, occurence #5 [2025-04-24 19:44:51,295 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:51,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:51,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:44:51,295 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:44:51,295 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-24 19:44:51,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-04-24 19:44:51,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:44:51,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 19:44:51,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2025-04-24 19:44:51,295 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:51,295 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2025-04-24 19:44:51,295 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:51,295 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:51,295 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:51,296 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1346385811, now seen corresponding path program 7 times [2025-04-24 19:44:51,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:51,296 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785132689] [2025-04-24 19:44:51,296 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 19:44:51,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:51,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-04-24 19:44:51,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 19:44:51,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:51,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:44:54,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:54,672 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785132689] [2025-04-24 19:44:54,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785132689] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:54,672 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469871201] [2025-04-24 19:44:54,672 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 19:44:54,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:54,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:54,674 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:44:54,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-04-24 19:44:54,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-04-24 19:44:54,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 19:44:54,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:54,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:54,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-04-24 19:44:54,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:55,347 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:55,347 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 112 [2025-04-24 19:44:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:55,526 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:55,838 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:55,838 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 168 treesize of output 194 [2025-04-24 19:44:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:56,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469871201] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:56,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:56,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 12, 12] total 45 [2025-04-24 19:44:56,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952974021] [2025-04-24 19:44:56,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:56,326 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2025-04-24 19:44:56,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:56,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2025-04-24 19:44:56,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1820, Unknown=0, NotChecked=0, Total=1980 [2025-04-24 19:44:56,327 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:56,327 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:56,327 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.311111111111111) internal successors, (104), 45 states have internal predecessors, (104), 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 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2025-04-24 19:44:56,327 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:58,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:44:58,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:44:58,588 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-24 19:44:58,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-04-24 19:44:58,788 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:58,789 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:44:58,789 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:58,789 INFO L139 ounterexampleChecker]: Examining path program with hash 5289752, occurence #6 [2025-04-24 19:44:58,789 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:58,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:58,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:44:58,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:44:58,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2025-04-24 19:44:58,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-24 19:44:58,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 19:44:58,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-04-24 19:44:58,789 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:58,789 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2025-04-24 19:44:58,789 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:58,789 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:58,789 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:58,790 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash 455976196, now seen corresponding path program 8 times [2025-04-24 19:44:58,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:58,790 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746806325] [2025-04-24 19:44:58,790 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:44:58,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:58,814 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-04-24 19:44:59,132 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-04-24 19:44:59,133 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:44:59,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:45:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:45:07,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:45:07,884 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746806325] [2025-04-24 19:45:07,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746806325] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:45:07,884 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523854066] [2025-04-24 19:45:07,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:45:07,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:45:07,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:45:07,886 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:45:07,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-04-24 19:45:08,032 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-04-24 19:45:08,125 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-04-24 19:45:08,125 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 19:45:08,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:45:08,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 82 conjuncts are in the unsatisfiable core [2025-04-24 19:45:08,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:45:09,486 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:45:09,487 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 365 treesize of output 301 [2025-04-24 19:45:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-04-24 19:45:10,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:45:12,156 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:45:12,157 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 427 treesize of output 399 [2025-04-24 19:45:13,622 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 32 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:45:13,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523854066] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:45:13,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:45:13,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 21, 18] total 65 [2025-04-24 19:45:13,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21839120] [2025-04-24 19:45:13,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:45:13,622 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2025-04-24 19:45:13,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:45:13,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2025-04-24 19:45:13,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=3835, Unknown=0, NotChecked=0, Total=4160 [2025-04-24 19:45:13,624 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:13,624 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:45:13,624 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.1846153846153844) internal successors, (142), 65 states have internal predecessors, (142), 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 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-04-24 19:45:13,624 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:18,663 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-04-24 19:45:18,664 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 19:45:18,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-04-24 19:45:18,864 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-04-24 19:45:18,864 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:45:18,864 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:45:18,864 INFO L139 ounterexampleChecker]: Examining path program with hash 5289752, occurence #7 [2025-04-24 19:45:18,864 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:45:18,864 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:45:18,864 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,864 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:45:18,864 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,864 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:45:18,864 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:45:18,865 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2025-04-24 19:45:18,865 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-24 19:45:18,865 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 19:45:18,865 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 19:45:18,865 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-24 19:45:18,865 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2025-04-24 19:45:18,865 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:18,865 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-04-24 19:45:18,865 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:45:18,865 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:45:18,865 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:45:18,865 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:45:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1775914498, now seen corresponding path program 9 times [2025-04-24 19:45:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:45:18,865 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241339895] [2025-04-24 19:45:18,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 19:45:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:45:18,890 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 57 statements into 6 equivalence classes. [2025-04-24 19:45:19,267 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 57 of 57 statements. [2025-04-24 19:45:19,267 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 19:45:19,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:45:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 38 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:45:19,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:45:19,457 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241339895] [2025-04-24 19:45:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241339895] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:45:19,457 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692528716] [2025-04-24 19:45:19,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 19:45:19,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:45:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:45:19,459 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:45:19,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-04-24 19:45:19,653 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 57 statements into 6 equivalence classes. [2025-04-24 19:45:19,847 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 57 of 57 statements. [2025-04-24 19:45:19,847 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 19:45:19,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:45:19,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 19:45:19,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:45:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:45:19,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 19:45:19,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692528716] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:45:19,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 19:45:19,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2025-04-24 19:45:19,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144484650] [2025-04-24 19:45:19,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:45:19,874 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-24 19:45:19,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:45:19,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-24 19:45:19,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-04-24 19:45:19,875 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:19,875 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:45:19,875 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 19:45:19,875 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:20,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:20,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-04-24 19:45:20,326 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:20,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-04-24 19:45:20,526 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:45:20,527 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:45:20,527 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:45:20,527 INFO L139 ounterexampleChecker]: Examining path program with hash -1251477189, occurence #5 [2025-04-24 19:45:20,527 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:45:20,527 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:45:20,527 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-24 19:45:20,527 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 19:45:20,527 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2025-04-24 19:45:20,527 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-04-24 19:45:20,527 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2025-04-24 19:45:20,527 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 19:45:20,527 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:45:20,527 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2025-04-24 19:45:20,527 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:45:20,527 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:45:20,527 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:45:20,528 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:45:20,528 INFO L85 PathProgramCache]: Analyzing trace with hash 818455398, now seen corresponding path program 10 times [2025-04-24 19:45:20,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:45:20,528 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285415339] [2025-04-24 19:45:20,528 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 19:45:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:45:20,554 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 55 statements into 2 equivalence classes. [2025-04-24 19:45:20,571 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 19:45:20,572 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 19:45:20,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:45:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 50 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:45:20,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:45:20,753 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285415339] [2025-04-24 19:45:20,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285415339] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:45:20,753 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785555403] [2025-04-24 19:45:20,753 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 19:45:20,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:45:20,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:45:20,756 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 19:45:20,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-04-24 19:45:20,950 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 55 statements into 2 equivalence classes. [2025-04-24 19:45:20,997 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 19:45:20,998 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 19:45:20,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:45:21,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 19:45:21,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:45:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:45:21,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 19:45:21,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785555403] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:45:21,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 19:45:21,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2025-04-24 19:45:21,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383061431] [2025-04-24 19:45:21,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:45:21,025 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-24 19:45:21,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:45:21,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-24 19:45:21,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2025-04-24 19:45:21,025 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:21,026 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:45:21,026 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:21,026 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-04-24 19:45:25,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:25,183 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:25,183 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,183 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-04-24 19:45:25,383 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-04-24 19:45:25,384 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 19:45:25,384 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:45:25,384 INFO L139 ounterexampleChecker]: Examining path program with hash -1630685359, occurence #1 [2025-04-24 19:45:25,384 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:45:25,384 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:45:25,384 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:45:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1242296587, now seen corresponding path program 1 times [2025-04-24 19:45:25,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:45:25,384 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924804503] [2025-04-24 19:45:25,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:45:25,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:45:25,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-24 19:45:25,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-24 19:45:25,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:45:25,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:45:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:45:25,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:45:25,681 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924804503] [2025-04-24 19:45:25,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924804503] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:45:25,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:45:25,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 19:45:25,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600614849] [2025-04-24 19:45:25,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:45:25,681 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 19:45:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:45:25,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 19:45:25,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 19:45:25,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:25,682 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:45:25,682 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,683 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 19:45:25,870 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:45:25,873 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-24 19:45:25,873 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-24 19:45:25,873 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-24 19:45:25,873 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-04-24 19:45:25,877 INFO L422 BasicCegarLoop]: Path program histogram: [10, 2, 2, 1, 1, 1] [2025-04-24 19:45:25,878 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 19:45:25,879 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 19:45:25,887 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 19:45:25,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 07:45:25 BasicIcfg [2025-04-24 19:45:25,888 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 19:45:25,889 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 19:45:25,889 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 19:45:25,889 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 19:45:25,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:44:02" (3/4) ... [2025-04-24 19:45:25,891 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-24 19:45:25,893 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-04-24 19:45:25,893 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-04-24 19:45:25,897 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 155 nodes and edges [2025-04-24 19:45:25,897 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-04-24 19:45:25,898 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-04-24 19:45:25,898 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-24 19:45:25,970 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 19:45:25,971 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 19:45:25,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 19:45:25,972 INFO L158 Benchmark]: Toolchain (without parser) took 85247.27ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 112.2MB in the beginning and 833.8MB in the end (delta: -721.6MB). Peak memory consumption was 507.0MB. Max. memory is 16.1GB. [2025-04-24 19:45:25,972 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:45:25,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.93ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 95.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-24 19:45:25,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.90ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 92.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:45:25,974 INFO L158 Benchmark]: Boogie Preprocessor took 36.05ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-24 19:45:25,974 INFO L158 Benchmark]: RCFGBuilder took 1022.57ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 68.7MB in the end (delta: 21.5MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2025-04-24 19:45:25,975 INFO L158 Benchmark]: TraceAbstraction took 83792.53ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 68.7MB in the beginning and 838.1MB in the end (delta: -769.4MB). Peak memory consumption was 466.2MB. Max. memory is 16.1GB. [2025-04-24 19:45:25,975 INFO L158 Benchmark]: Witness Printer took 82.28ms. Allocated memory is still 1.4GB. Free memory was 838.1MB in the beginning and 833.8MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 19:45:25,976 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.93ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 95.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.90ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 92.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.05ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1022.57ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 68.7MB in the end (delta: 21.5MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * TraceAbstraction took 83792.53ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 68.7MB in the beginning and 838.1MB in the end (delta: -769.4MB). Peak memory consumption was 466.2MB. Max. memory is 16.1GB. * Witness Printer took 82.28ms. Allocated memory is still 1.4GB. Free memory was 838.1MB in the beginning and 833.8MB in the end (delta: 4.3MB). 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: 4491, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 1233, dependent conditional: 1231, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 0, independent unconditional: 3258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 0, independent unconditional: 3258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 352, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 352, independent: 348, independent conditional: 0, independent unconditional: 348, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 95, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 3260, independent: 2908, independent conditional: 0, independent unconditional: 2908, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 352, unknown conditional: 0, unknown unconditional: 352] , Statistics on independence cache: Total cache size (in pairs): 352, Positive cache size: 350, Positive conditional cache size: 0, Positive unconditional cache size: 350, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2864, Maximal queried relation: 0, Independence queries for same thread: 1231, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 89, Number of trivial persistent sets: 68, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 396, independent: 394, independent conditional: 0, independent unconditional: 394, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4491, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 1233, dependent conditional: 1231, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 2864, independent unconditional: 394, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 0, independent unconditional: 3258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3260, independent: 3258, independent conditional: 0, independent unconditional: 3258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 352, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 352, independent: 348, independent conditional: 0, independent unconditional: 348, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 95, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 3260, independent: 2908, independent conditional: 0, independent unconditional: 2908, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 352, unknown conditional: 0, unknown unconditional: 352] , Statistics on independence cache: Total cache size (in pairs): 352, Positive cache size: 350, Positive conditional cache size: 0, Positive unconditional cache size: 350, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2864, Maximal queried relation: 0, Independence queries for same thread: 1231 - PositiveResult [Line: 128]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 43 locations, 56 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 83.6s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 22.1s, 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: 337, 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: 0.3s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 54.6s InterpolantComputationTime, 1116 NumberOfCodeBlocks, 1086 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 1436 ConstructedInterpolants, 0 QuantifiedInterpolants, 21384 SizeOfPredicates, 235 NumberOfNonLiveVariables, 4038 ConjunctsInSsa, 382 ConjunctsInUnsatCore, 37 InterpolantComputations, 8 PerfectInterpolantSequences, 976/1476 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]: 12, ConditionCalculationTime [ms]: 0, ConditionCalculations: 71, 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 19:45:26,038 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