./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-nonblocking-cntr.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/popl20-nonblocking-cntr.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 fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 20:24:45,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 20:24:45,952 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 20:24:45,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 20:24:45,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 20:24:45,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 20:24:45,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 20:24:45,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 20:24:45,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 20:24:45,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 20:24:45,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 20:24:45,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 20:24:45,983 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 20:24:45,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 20:24:45,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 20:24:45,984 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 20:24:45,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 20:24:45,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 20:24:45,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 20:24:45,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 20:24:45,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 20:24:45,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 20:24:45,985 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:24:45,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 20:24:45,985 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 20:24:45,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 20:24:45,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:24:45,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 20:24:45,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 20:24:45,986 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 20:24:45,986 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 20:24:45,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 20:24:45,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 20:24:45,987 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 20:24:45,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 20:24:45,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 20:24:45,987 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 20:24:45,987 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 20:24:45,987 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 -> fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea [2025-04-24 20:24:46,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 20:24:46,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 20:24:46,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 20:24:46,195 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 20:24:46,195 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 20:24:46,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c [2025-04-24 20:24:47,471 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f7842b6e3/7d62a130a5e14f9fb96c07cf2e1f4c07/FLAG232d26c38 [2025-04-24 20:24:47,659 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 20:24:47,660 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-nonblocking-cntr.wvr.c [2025-04-24 20:24:47,665 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f7842b6e3/7d62a130a5e14f9fb96c07cf2e1f4c07/FLAG232d26c38 [2025-04-24 20:24:48,671 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f7842b6e3/7d62a130a5e14f9fb96c07cf2e1f4c07 [2025-04-24 20:24:48,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 20:24:48,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 20:24:48,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 20:24:48,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 20:24:48,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 20:24:48,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c19bb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48, skipping insertion in model container [2025-04-24 20:24:48,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 20:24:48,818 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/popl20-nonblocking-cntr.wvr.c[2063,2076] [2025-04-24 20:24:48,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:24:48,827 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 20:24:48,844 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/popl20-nonblocking-cntr.wvr.c[2063,2076] [2025-04-24 20:24:48,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 20:24:48,854 INFO L204 MainTranslator]: Completed translation [2025-04-24 20:24:48,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48 WrapperNode [2025-04-24 20:24:48,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 20:24:48,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 20:24:48,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 20:24:48,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 20:24:48,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,878 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 41 [2025-04-24 20:24:48,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 20:24:48,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 20:24:48,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 20:24:48,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 20:24:48,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,886 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,893 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 20:24:48,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 20:24:48,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 20:24:48,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 20:24:48,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (1/1) ... [2025-04-24 20:24:48,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 20:24:48,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:24:48,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 20:24:48,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 20:24:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 20:24:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 20:24:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 20:24:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 20:24:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 20:24:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 20:24:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 20:24:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 20:24:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 20:24:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 20:24:48,938 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 20:24:48,999 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 20:24:49,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 20:24:49,111 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 20:24:49,111 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 20:24:49,205 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 20:24:49,207 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 20:24:49,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:24:49 BoogieIcfgContainer [2025-04-24 20:24:49,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 20:24:49,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 20:24:49,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 20:24:49,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 20:24:49,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 08:24:48" (1/3) ... [2025-04-24 20:24:49,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c16d571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:24:49, skipping insertion in model container [2025-04-24 20:24:49,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 08:24:48" (2/3) ... [2025-04-24 20:24:49,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c16d571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 08:24:49, skipping insertion in model container [2025-04-24 20:24:49,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 08:24:49" (3/3) ... [2025-04-24 20:24:49,215 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr.wvr.c [2025-04-24 20:24:49,224 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 20:24:49,225 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-nonblocking-cntr.wvr.c that has 3 procedures, 20 locations, 19 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-24 20:24:49,225 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 20:24:49,259 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 20:24:49,292 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:24:49,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 20:24:49,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:24:49,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 20:24:49,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 20:24:49,346 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 20:24:49,357 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 20:24:49,362 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;@24efc85b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 20:24:49,363 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 20:24:49,544 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 20:24:49,545 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:24:49,545 INFO L139 ounterexampleChecker]: Examining path program with hash -1908429135, occurence #1 [2025-04-24 20:24:49,545 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:24:49,545 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:24:49,548 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:24:49,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1169777107, now seen corresponding path program 1 times [2025-04-24 20:24:49,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:24:49,554 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296306092] [2025-04-24 20:24:49,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:24:49,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:24:49,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-24 20:24:49,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-24 20:24:49,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:24:49,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:24:49,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:24:49,768 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296306092] [2025-04-24 20:24:49,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296306092] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:24:49,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:24:49,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 20:24:49,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657763308] [2025-04-24 20:24:49,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:24:49,772 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 20:24:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:24:49,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 20:24:49,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-24 20:24:49,787 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:49,788 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:24:49,789 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:24:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:49,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:49,841 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 20:24:49,841 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 20:24:49,842 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:24:49,842 INFO L139 ounterexampleChecker]: Examining path program with hash 1274166755, occurence #1 [2025-04-24 20:24:49,842 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:24:49,842 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:24:49,842 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:24:49,842 INFO L85 PathProgramCache]: Analyzing trace with hash -3200603, now seen corresponding path program 1 times [2025-04-24 20:24:49,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:24:49,843 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309595010] [2025-04-24 20:24:49,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:24:49,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:24:49,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-24 20:24:49,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-24 20:24:49,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:24:49,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:24:50,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:24:50,055 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309595010] [2025-04-24 20:24:50,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309595010] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:24:50,056 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118481908] [2025-04-24 20:24:50,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:24:50,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:24:50,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:24:50,058 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 20:24:50,060 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 20:24:50,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-24 20:24:50,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-24 20:24:50,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:24:50,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:50,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 20:24:50,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:24:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:24:50,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:24:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-24 20:24:50,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118481908] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:24:50,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:24:50,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 19 [2025-04-24 20:24:50,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849604756] [2025-04-24 20:24:50,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:24:50,428 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-24 20:24:50,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:24:50,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-24 20:24:50,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2025-04-24 20:24:50,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:50,429 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:24:50,430 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 19 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 20:24:50,430 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:50,430 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:50,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:50,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:50,819 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 20:24:51,016 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,SelfDestructingSolverStorable1 [2025-04-24 20:24:51,016 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 20:24:51,016 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:24:51,016 INFO L139 ounterexampleChecker]: Examining path program with hash -1170906800, occurence #1 [2025-04-24 20:24:51,016 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:24:51,016 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:24:51,017 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:24:51,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2110214689, now seen corresponding path program 2 times [2025-04-24 20:24:51,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:24:51,017 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724944866] [2025-04-24 20:24:51,017 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:24:51,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:24:51,025 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 2 equivalence classes. [2025-04-24 20:24:51,046 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-04-24 20:24:51,047 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:24:51,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:51,252 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-04-24 20:24:51,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:24:51,252 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724944866] [2025-04-24 20:24:51,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724944866] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 20:24:51,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 20:24:51,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 20:24:51,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135764996] [2025-04-24 20:24:51,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 20:24:51,253 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 20:24:51,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:24:51,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 20:24:51,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-24 20:24:51,253 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:51,253 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:24:51,253 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:24:51,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:51,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:51,254 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:51,351 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:51,352 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:51,352 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:24:51,352 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 20:24:51,352 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 20:24:51,352 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:24:51,353 INFO L139 ounterexampleChecker]: Examining path program with hash -1722718165, occurence #1 [2025-04-24 20:24:51,353 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:24:51,353 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:24:51,353 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:24:51,353 INFO L85 PathProgramCache]: Analyzing trace with hash -386875487, now seen corresponding path program 3 times [2025-04-24 20:24:51,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:24:51,354 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577031224] [2025-04-24 20:24:51,354 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:24:51,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:24:51,359 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 5 equivalence classes. [2025-04-24 20:24:51,382 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 39 of 39 statements. [2025-04-24 20:24:51,382 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-04-24 20:24:51,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-24 20:24:51,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:24:51,747 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577031224] [2025-04-24 20:24:51,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577031224] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:24:51,748 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228693468] [2025-04-24 20:24:51,748 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:24:51,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:24:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:24:51,750 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 20:24:51,751 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 20:24:51,780 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 5 equivalence classes. [2025-04-24 20:24:51,793 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 39 of 39 statements. [2025-04-24 20:24:51,793 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-04-24 20:24:51,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:51,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-24 20:24:51,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:24:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:24:52,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:24:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-24 20:24:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228693468] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:24:52,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:24:52,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 12] total 41 [2025-04-24 20:24:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132949507] [2025-04-24 20:24:52,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:24:52,487 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-04-24 20:24:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:24:52,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-04-24 20:24:52,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=1318, Unknown=0, NotChecked=0, Total=1640 [2025-04-24 20:24:52,488 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:52,489 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:24:52,489 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.3902439024390243) internal successors, (98), 41 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:24:52,489 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:52,489 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:52,489 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:24:52,489 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:53,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:53,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:53,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:24:53,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-24 20:24:53,468 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 20:24:53,663 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:24:53,663 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 20:24:53,663 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:24:53,663 INFO L139 ounterexampleChecker]: Examining path program with hash 477532116, occurence #1 [2025-04-24 20:24:53,663 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:24:53,663 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:24:53,664 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:24:53,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1328937895, now seen corresponding path program 4 times [2025-04-24 20:24:53,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:24:53,664 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319118415] [2025-04-24 20:24:53,664 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:24:53,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:24:53,668 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-04-24 20:24:53,678 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 44 of 45 statements. [2025-04-24 20:24:53,678 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 20:24:53,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 20:24:54,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:24:54,060 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319118415] [2025-04-24 20:24:54,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319118415] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:24:54,060 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215740933] [2025-04-24 20:24:54,060 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:24:54,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:24:54,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:24:54,062 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 20:24:54,062 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 20:24:54,086 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 45 statements into 2 equivalence classes. [2025-04-24 20:24:54,097 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 44 of 45 statements. [2025-04-24 20:24:54,098 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 20:24:54,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:54,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-24 20:24:54,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:24:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:24:54,479 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:24:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-04-24 20:24:54,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215740933] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:24:54,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:24:54,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 13] total 40 [2025-04-24 20:24:54,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901221067] [2025-04-24 20:24:54,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:24:54,691 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-04-24 20:24:54,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:24:54,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-04-24 20:24:54,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2025-04-24 20:24:54,692 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:54,692 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:24:54,692 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.6) internal successors, (104), 40 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 20:24:54,692 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:54,692 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:54,692 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:24:54,692 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2025-04-24 20:24:54,692 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:55,571 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:55,571 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:55,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:24:55,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-04-24 20:24:55,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-04-24 20:24:55,579 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 20:24:55,774 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:24:55,774 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 20:24:55,774 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:24:55,774 INFO L139 ounterexampleChecker]: Examining path program with hash -352252356, occurence #1 [2025-04-24 20:24:55,774 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:24:55,774 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:24:55,774 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:24:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash -550592537, now seen corresponding path program 5 times [2025-04-24 20:24:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:24:55,775 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807310630] [2025-04-24 20:24:55,775 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:24:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:24:55,779 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 43 statements into 6 equivalence classes. [2025-04-24 20:24:55,790 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 20:24:55,790 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-04-24 20:24:55,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-04-24 20:24:55,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:24:55,938 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807310630] [2025-04-24 20:24:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807310630] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:24:55,939 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429462969] [2025-04-24 20:24:55,939 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:24:55,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:24:55,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:24:55,942 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 20:24:55,943 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 20:24:55,967 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 43 statements into 6 equivalence classes. [2025-04-24 20:24:55,980 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 20:24:55,981 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-04-24 20:24:55,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:55,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-24 20:24:55,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:24:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:24:56,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:24:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:24:57,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429462969] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:24:57,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:24:57,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 21, 21] total 44 [2025-04-24 20:24:57,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615429243] [2025-04-24 20:24:57,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:24:57,318 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2025-04-24 20:24:57,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:24:57,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2025-04-24 20:24:57,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=1509, Unknown=0, NotChecked=0, Total=1980 [2025-04-24 20:24:57,319 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:57,319 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:24:57,319 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.2) internal successors, (99), 44 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 20:24:57,319 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:57,319 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:57,319 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:24:57,319 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2025-04-24 20:24:57,319 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2025-04-24 20:24:57,319 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:24:58,446 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:24:58,446 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:24:58,446 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:24:58,446 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:24:58,446 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:24:58,446 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:24:58,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-24 20:24:58,647 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,SelfDestructingSolverStorable5 [2025-04-24 20:24:58,647 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 20:24:58,647 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:24:58,647 INFO L139 ounterexampleChecker]: Examining path program with hash -1125462670, occurence #1 [2025-04-24 20:24:58,647 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:24:58,647 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:24:58,648 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:24:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash 427798181, now seen corresponding path program 6 times [2025-04-24 20:24:58,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:24:58,648 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290213009] [2025-04-24 20:24:58,648 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 20:24:58,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:24:58,665 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 71 statements into 9 equivalence classes. [2025-04-24 20:24:58,684 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 71 of 71 statements. [2025-04-24 20:24:58,684 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-04-24 20:24:58,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 5 proven. 141 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2025-04-24 20:24:59,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:24:59,237 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290213009] [2025-04-24 20:24:59,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290213009] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:24:59,237 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142258413] [2025-04-24 20:24:59,237 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 20:24:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:24:59,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:24:59,239 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 20:24:59,241 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 20:24:59,269 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 71 statements into 9 equivalence classes. [2025-04-24 20:24:59,289 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 71 of 71 statements. [2025-04-24 20:24:59,290 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-04-24 20:24:59,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:24:59,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-04-24 20:24:59,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:24:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 5 proven. 214 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:24:59,952 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:25:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 124 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:25:02,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142258413] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:25:02,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:25:02,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 37, 36] total 86 [2025-04-24 20:25:02,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594022673] [2025-04-24 20:25:02,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:25:02,055 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2025-04-24 20:25:02,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:02,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2025-04-24 20:25:02,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1950, Invalid=5360, Unknown=0, NotChecked=0, Total=7310 [2025-04-24 20:25:02,058 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:02,059 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:02,059 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 1.9534883720930232) internal successors, (168), 86 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:25:02,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:02,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:25:02,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:02,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:25:02,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:25:02,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:25:02,059 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:03,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:03,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:25:03,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:03,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:25:03,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2025-04-24 20:25:03,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:25:03,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2025-04-24 20:25:03,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-24 20:25:03,577 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:25:03,578 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 20:25:03,578 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:03,578 INFO L139 ounterexampleChecker]: Examining path program with hash 945830020, occurence #1 [2025-04-24 20:25:03,578 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:25:03,578 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:03,578 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:03,578 INFO L85 PathProgramCache]: Analyzing trace with hash -462256307, now seen corresponding path program 7 times [2025-04-24 20:25:03,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:03,579 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934500935] [2025-04-24 20:25:03,579 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 20:25:03,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:03,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-04-24 20:25:03,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-04-24 20:25:03,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:03,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 259 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-04-24 20:25:04,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:04,243 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934500935] [2025-04-24 20:25:04,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934500935] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:04,243 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681396246] [2025-04-24 20:25:04,243 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 20:25:04,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:25:04,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:25:04,245 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 20:25:04,246 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 20:25:04,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-04-24 20:25:04,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-04-24 20:25:04,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:04,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:04,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 71 conjuncts are in the unsatisfiable core [2025-04-24 20:25:04,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:25:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 7 proven. 599 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:25:09,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:25:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 194 proven. 245 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2025-04-24 20:25:10,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681396246] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:25:10,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:25:10,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 58, 23] total 86 [2025-04-24 20:25:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442350859] [2025-04-24 20:25:10,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:25:10,310 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2025-04-24 20:25:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:10,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2025-04-24 20:25:10,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=850, Invalid=6460, Unknown=0, NotChecked=0, Total=7310 [2025-04-24 20:25:10,312 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:10,312 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:10,312 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 2.197674418604651) internal successors, (189), 86 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:25:10,312 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:10,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:25:10,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:10,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:25:10,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2025-04-24 20:25:10,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:25:10,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2025-04-24 20:25:10,313 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:25:21,574 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:25:21,580 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 20:25:21,774 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,SelfDestructingSolverStorable7 [2025-04-24 20:25:21,775 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 20:25:21,775 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:21,775 INFO L139 ounterexampleChecker]: Examining path program with hash 945830020, occurence #2 [2025-04-24 20:25:21,775 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:21,775 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 20:25:21,781 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:21,781 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:25:21,781 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:21,781 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-04-24 20:25:21,798 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:21,798 INFO L85 PathProgramCache]: Analyzing trace with hash -468969783, now seen corresponding path program 1 times [2025-04-24 20:25:21,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:25:21,798 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128081437] [2025-04-24 20:25:21,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:21,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:21,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-04-24 20:25:21,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-04-24 20:25:21,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:21,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 20:25:21,827 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 20:25:21,828 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 20:25:21,828 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 106 is hopeless, skipping. [2025-04-24 20:25:21,828 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 113 is hopeless, skipping. [2025-04-24 20:25:21,828 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 120 is hopeless, skipping. [2025-04-24 20:25:21,828 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2025-04-24 20:25:21,828 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:21,828 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2025-04-24 20:25:21,828 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:21,828 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 132 [2025-04-24 20:25:21,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:21,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 135 [2025-04-24 20:25:21,829 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:21,829 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 137 [2025-04-24 20:25:21,847 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:21,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1036473160, now seen corresponding path program 1 times [2025-04-24 20:25:21,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:25:21,848 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304090675] [2025-04-24 20:25:21,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:21,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:21,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-04-24 20:25:21,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-04-24 20:25:21,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:21,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:22,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 27 proven. 325 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2025-04-24 20:25:22,708 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-24 20:25:22,708 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304090675] [2025-04-24 20:25:22,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304090675] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:22,708 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1806443589] [2025-04-24 20:25:22,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:22,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:22,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-04-24 20:25:22,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-04-24 20:25:22,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:22,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:22,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 73 conjuncts are in the unsatisfiable core [2025-04-24 20:25:22,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:25:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 22 proven. 303 refuted. 0 times theorem prover too weak. 952 trivial. 0 not checked. [2025-04-24 20:25:22,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1806443589] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:22,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 20:25:22,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 9 [2025-04-24 20:25:22,898 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-24 20:25:22,898 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 144 is hopeless, skipping. [2025-04-24 20:25:22,898 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 151 is hopeless, skipping. [2025-04-24 20:25:22,898 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 158 is hopeless, skipping. [2025-04-24 20:25:22,898 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 165 is hopeless, skipping. [2025-04-24 20:25:22,898 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 172 is hopeless, skipping. [2025-04-24 20:25:22,898 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-04-24 20:25:22,898 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:22,898 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:22,898 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:22,898 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:22,898 INFO L85 PathProgramCache]: Analyzing trace with hash 541461979, now seen corresponding path program 8 times [2025-04-24 20:25:22,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:22,899 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798063350] [2025-04-24 20:25:22,899 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:25:22,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:22,906 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 183 statements into 2 equivalence classes. [2025-04-24 20:25:22,941 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 183 of 183 statements. [2025-04-24 20:25:22,942 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:25:22,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 46 proven. 773 refuted. 0 times theorem prover too weak. 1381 trivial. 0 not checked. [2025-04-24 20:25:25,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:25,629 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798063350] [2025-04-24 20:25:25,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798063350] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:25,629 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084160926] [2025-04-24 20:25:25,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 20:25:25,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:25:25,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:25:25,631 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 20:25:25,633 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 20:25:25,670 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 183 statements into 2 equivalence classes. [2025-04-24 20:25:25,708 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 183 of 183 statements. [2025-04-24 20:25:25,708 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 20:25:25,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:25,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 92 conjuncts are in the unsatisfiable core [2025-04-24 20:25:25,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:25:26,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 135 proven. 1175 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2025-04-24 20:25:26,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:25:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 1027 proven. 240 refuted. 0 times theorem prover too weak. 933 trivial. 0 not checked. [2025-04-24 20:25:27,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084160926] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:25:27,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:25:27,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 25 [2025-04-24 20:25:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168527391] [2025-04-24 20:25:27,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:25:27,288 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-04-24 20:25:27,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:25:27,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-04-24 20:25:27,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2025-04-24 20:25:27,289 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:27,289 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:25:27,289 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.9615384615384617) internal successors, (103), 25 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 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:25:27,289 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:25:27,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:25:27,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:25:27,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:25:27,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:25:27,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:25:27,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:25:27,586 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:25:27,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:25:27,587 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:25:27,593 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 20:25:27,787 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:25:27,787 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 20:25:27,787 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:25:27,788 INFO L139 ounterexampleChecker]: Examining path program with hash 945830020, occurence #3 [2025-04-24 20:25:27,788 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:25:27,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 20:25:27,788 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:27,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:25:27,788 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:27,788 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-04-24 20:25:27,805 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:27,805 INFO L85 PathProgramCache]: Analyzing trace with hash -468969757, now seen corresponding path program 1 times [2025-04-24 20:25:27,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:25:27,805 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765723837] [2025-04-24 20:25:27,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:27,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:27,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-04-24 20:25:27,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-04-24 20:25:27,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:27,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 20:25:27,818 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 20:25:27,818 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 20:25:27,818 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 106 is hopeless, skipping. [2025-04-24 20:25:27,818 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 113 is hopeless, skipping. [2025-04-24 20:25:27,818 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 120 is hopeless, skipping. [2025-04-24 20:25:27,818 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2025-04-24 20:25:27,818 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:27,818 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2025-04-24 20:25:27,818 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:27,818 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 132 [2025-04-24 20:25:27,818 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:27,818 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 135 [2025-04-24 20:25:27,818 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:27,818 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-04-24 20:25:27,818 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:27,818 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 141 [2025-04-24 20:25:27,818 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:25:27,818 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 143 [2025-04-24 20:25:27,835 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1684881362, now seen corresponding path program 1 times [2025-04-24 20:25:27,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:25:27,835 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462307975] [2025-04-24 20:25:27,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:27,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:27,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-04-24 20:25:27,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-04-24 20:25:27,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:27,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 56 proven. 325 refuted. 0 times theorem prover too weak. 925 trivial. 0 not checked. [2025-04-24 20:25:28,518 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-24 20:25:28,518 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462307975] [2025-04-24 20:25:28,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462307975] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:28,519 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [256338652] [2025-04-24 20:25:28,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:25:28,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:28,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-04-24 20:25:28,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-04-24 20:25:28,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:25:28,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:28,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 76 conjuncts are in the unsatisfiable core [2025-04-24 20:25:28,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:25:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 51 proven. 192 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked. [2025-04-24 20:25:28,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [256338652] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:28,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 20:25:28,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2025-04-24 20:25:28,692 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-24 20:25:28,692 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 150 is hopeless, skipping. [2025-04-24 20:25:28,692 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 157 is hopeless, skipping. [2025-04-24 20:25:28,692 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 164 is hopeless, skipping. [2025-04-24 20:25:28,692 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 171 is hopeless, skipping. [2025-04-24 20:25:28,692 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 178 is hopeless, skipping. [2025-04-24 20:25:28,692 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2025-04-24 20:25:28,692 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:25:28,692 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:25:28,692 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:25:28,692 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:25:28,693 INFO L85 PathProgramCache]: Analyzing trace with hash 686054107, now seen corresponding path program 9 times [2025-04-24 20:25:28,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:25:28,693 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649343046] [2025-04-24 20:25:28,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:25:28,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:25:28,699 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 189 statements into 29 equivalence classes. [2025-04-24 20:25:28,835 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) and asserted 189 of 189 statements. [2025-04-24 20:25:28,835 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2025-04-24 20:25:28,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2229 backedges. 17 proven. 1952 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2025-04-24 20:25:48,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:25:48,299 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649343046] [2025-04-24 20:25:48,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649343046] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:25:48,299 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944049888] [2025-04-24 20:25:48,299 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 20:25:48,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:25:48,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:25:48,301 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 20:25:48,301 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 20:25:48,338 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 189 statements into 29 equivalence classes. [2025-04-24 20:25:48,398 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) and asserted 189 of 189 statements. [2025-04-24 20:25:48,398 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2025-04-24 20:25:48,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:25:48,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 131 conjuncts are in the unsatisfiable core [2025-04-24 20:25:48,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:25:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2229 backedges. 51 proven. 2174 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:25:51,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:26:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2229 backedges. 1309 proven. 920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:26:10,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944049888] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:26:10,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:26:10,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 104, 93] total 246 [2025-04-24 20:26:10,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564059179] [2025-04-24 20:26:10,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:26:10,959 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 247 states [2025-04-24 20:26:10,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:26:10,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 247 interpolants. [2025-04-24 20:26:10,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12298, Invalid=48464, Unknown=0, NotChecked=0, Total=60762 [2025-04-24 20:26:10,970 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:10,970 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:26:10,971 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 247 states, 247 states have (on average 1.9311740890688258) internal successors, (477), 246 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:26:10,971 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:26:21,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:26:21,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:26:21,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:26:21,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:26:21,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:26:21,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:26:21,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:26:21,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:26:21,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:26:21,153 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2025-04-24 20:26:21,159 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 20:26:21,353 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,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15 [2025-04-24 20:26:21,353 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 20:26:21,353 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:26:21,354 INFO L139 ounterexampleChecker]: Examining path program with hash 945830020, occurence #4 [2025-04-24 20:26:21,354 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:26:21,354 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 20:26:21,354 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:21,354 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:26:21,354 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:21,354 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-04-24 20:26:21,370 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash 233270107, now seen corresponding path program 1 times [2025-04-24 20:26:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:26:21,370 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245424165] [2025-04-24 20:26:21,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:26:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:21,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-04-24 20:26:21,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-04-24 20:26:21,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:26:21,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 20:26:21,383 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 20:26:21,383 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 20:26:21,383 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 131 is hopeless, skipping. [2025-04-24 20:26:21,383 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 138 is hopeless, skipping. [2025-04-24 20:26:21,383 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 145 is hopeless, skipping. [2025-04-24 20:26:21,383 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 151 [2025-04-24 20:26:21,383 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:21,383 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 154 [2025-04-24 20:26:21,383 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:21,383 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 157 [2025-04-24 20:26:21,383 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:21,383 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 160 [2025-04-24 20:26:21,383 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:21,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 163 [2025-04-24 20:26:21,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:21,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-04-24 20:26:21,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:26:21,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 168 [2025-04-24 20:26:21,401 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:21,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1189551798, now seen corresponding path program 1 times [2025-04-24 20:26:21,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:26:21,402 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240639327] [2025-04-24 20:26:21,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:26:21,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:21,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-04-24 20:26:21,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-04-24 20:26:21,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:26:21,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:22,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 52 proven. 493 refuted. 0 times theorem prover too weak. 1381 trivial. 0 not checked. [2025-04-24 20:26:22,444 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-24 20:26:22,444 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240639327] [2025-04-24 20:26:22,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240639327] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:22,444 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [248746594] [2025-04-24 20:26:22,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:26:22,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:22,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-04-24 20:26:22,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-04-24 20:26:22,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:26:22,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:22,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 92 conjuncts are in the unsatisfiable core [2025-04-24 20:26:22,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:26:22,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 51 proven. 78 refuted. 0 times theorem prover too weak. 1797 trivial. 0 not checked. [2025-04-24 20:26:22,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [248746594] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:22,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 20:26:22,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 12 [2025-04-24 20:26:22,627 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-24 20:26:22,627 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 175 is hopeless, skipping. [2025-04-24 20:26:22,627 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 182 is hopeless, skipping. [2025-04-24 20:26:22,627 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 189 is hopeless, skipping. [2025-04-24 20:26:22,627 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 196 is hopeless, skipping. [2025-04-24 20:26:22,627 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 203 is hopeless, skipping. [2025-04-24 20:26:22,627 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 210 is hopeless, skipping. [2025-04-24 20:26:22,627 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 217 is hopeless, skipping. [2025-04-24 20:26:22,627 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 225 [2025-04-24 20:26:22,627 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:26:22,627 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:26:22,627 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:26:22,627 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:26:22,627 INFO L85 PathProgramCache]: Analyzing trace with hash 273351625, now seen corresponding path program 10 times [2025-04-24 20:26:22,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:26:22,628 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676583421] [2025-04-24 20:26:22,628 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:26:22,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:26:22,635 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 228 statements into 2 equivalence classes. [2025-04-24 20:26:22,788 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 227 of 228 statements. [2025-04-24 20:26:22,788 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 20:26:22,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 734 proven. 2730 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-24 20:26:55,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:26:55,788 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676583421] [2025-04-24 20:26:55,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676583421] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:26:55,788 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711548077] [2025-04-24 20:26:55,788 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 20:26:55,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:26:55,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:26:55,790 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 20:26:55,792 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 20:26:55,828 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 228 statements into 2 equivalence classes. [2025-04-24 20:26:55,887 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 227 of 228 statements. [2025-04-24 20:26:55,887 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 20:26:55,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:26:55,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 173 conjuncts are in the unsatisfiable core [2025-04-24 20:26:55,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:27:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 9 proven. 3467 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:27:56,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:27:59,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 996 proven. 1116 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2025-04-24 20:27:59,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711548077] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:27:59,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:27:59,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 135, 34] total 263 [2025-04-24 20:27:59,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042447172] [2025-04-24 20:27:59,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:27:59,476 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 263 states [2025-04-24 20:27:59,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:27:59,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 263 interpolants. [2025-04-24 20:27:59,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8352, Invalid=60554, Unknown=0, NotChecked=0, Total=68906 [2025-04-24 20:27:59,485 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:27:59,485 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:27:59,485 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 263 states, 263 states have (on average 1.8288973384030418) internal successors, (481), 263 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:27:59,485 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2025-04-24 20:27:59,486 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2025-04-24 20:31:07,810 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 363 states. [2025-04-24 20:31:07,817 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 20:31:08,010 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2025-04-24 20:31:08,010 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 20:31:08,010 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:31:08,013 INFO L139 ounterexampleChecker]: Examining path program with hash 1960565439, occurence #1 [2025-04-24 20:31:08,013 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 20:31:08,013 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:31:08,013 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:31:08,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2104687645, now seen corresponding path program 11 times [2025-04-24 20:31:08,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:31:08,013 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714354773] [2025-04-24 20:31:08,013 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:31:08,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:31:08,023 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 325 statements into 54 equivalence classes. [2025-04-24 20:31:08,167 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) and asserted 325 of 325 statements. [2025-04-24 20:31:08,168 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2025-04-24 20:31:08,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:31:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 7847 backedges. 0 proven. 1989 refuted. 0 times theorem prover too weak. 5858 trivial. 0 not checked. [2025-04-24 20:31:13,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:31:13,004 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714354773] [2025-04-24 20:31:13,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714354773] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:31:13,004 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716587881] [2025-04-24 20:31:13,004 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 20:31:13,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:31:13,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:31:13,006 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 20:31:13,007 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 20:31:13,054 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 325 statements into 54 equivalence classes. [2025-04-24 20:31:13,280 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) and asserted 325 of 325 statements. [2025-04-24 20:31:13,280 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2025-04-24 20:31:13,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:31:13,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 190 conjuncts are in the unsatisfiable core [2025-04-24 20:31:13,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:31:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 7847 backedges. 0 proven. 1942 refuted. 0 times theorem prover too weak. 5905 trivial. 0 not checked. [2025-04-24 20:31:13,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:31:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7847 backedges. 2509 proven. 652 refuted. 0 times theorem prover too weak. 4686 trivial. 0 not checked. [2025-04-24 20:31:14,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716587881] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:31:14,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:31:14,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 24 [2025-04-24 20:31:14,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562484956] [2025-04-24 20:31:14,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:31:14,234 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-04-24 20:31:14,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:31:14,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-04-24 20:31:14,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2025-04-24 20:31:14,235 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:31:14,235 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:31:14,235 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.44) internal successors, (111), 24 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:31:14,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:31:14,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:31:14,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:31:14,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:31:14,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:31:14,235 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:31:14,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:31:14,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:31:14,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:31:14,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2025-04-24 20:31:14,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 363 states. [2025-04-24 20:31:14,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2025-04-24 20:31:14,959 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:31:14,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-04-24 20:31:15,160 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:31:15,160 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 20:31:15,160 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:31:15,160 INFO L139 ounterexampleChecker]: Examining path program with hash 945830020, occurence #5 [2025-04-24 20:31:15,160 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:31:15,160 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 20:31:15,160 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:31:15,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:31:15,161 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:31:15,161 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 219 [2025-04-24 20:31:15,176 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:31:15,176 INFO L85 PathProgramCache]: Analyzing trace with hash -689873335, now seen corresponding path program 1 times [2025-04-24 20:31:15,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:31:15,176 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113582600] [2025-04-24 20:31:15,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:31:15,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:31:15,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 220 statements into 1 equivalence classes. [2025-04-24 20:31:15,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 220 of 220 statements. [2025-04-24 20:31:15,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:31:15,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 20:31:15,199 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 20:31:15,199 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 20:31:15,199 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 226 is hopeless, skipping. [2025-04-24 20:31:15,199 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 233 is hopeless, skipping. [2025-04-24 20:31:15,199 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 240 is hopeless, skipping. [2025-04-24 20:31:15,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 246 [2025-04-24 20:31:15,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 249 [2025-04-24 20:31:15,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 252 [2025-04-24 20:31:15,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 255 [2025-04-24 20:31:15,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,200 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 258 [2025-04-24 20:31:15,200 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,200 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 261 [2025-04-24 20:31:15,200 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,200 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-04-24 20:31:15,200 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,200 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 267 [2025-04-24 20:31:15,200 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:31:15,200 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 269 [2025-04-24 20:31:15,221 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:31:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1937958344, now seen corresponding path program 1 times [2025-04-24 20:31:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:31:15,221 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931456833] [2025-04-24 20:31:15,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:31:15,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:31:15,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 270 statements into 1 equivalence classes. [2025-04-24 20:31:15,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 270 of 270 statements. [2025-04-24 20:31:15,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:31:15,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:31:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5463 backedges. 92 proven. 714 refuted. 0 times theorem prover too weak. 4657 trivial. 0 not checked. [2025-04-24 20:31:17,788 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-24 20:31:17,788 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931456833] [2025-04-24 20:31:17,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931456833] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:31:17,788 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [326944796] [2025-04-24 20:31:17,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:31:17,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:31:17,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 270 statements into 1 equivalence classes. [2025-04-24 20:31:17,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 270 of 270 statements. [2025-04-24 20:31:17,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:31:17,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:31:17,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 150 conjuncts are in the unsatisfiable core [2025-04-24 20:31:17,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:31:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5463 backedges. 92 proven. 900 refuted. 0 times theorem prover too weak. 4471 trivial. 0 not checked. [2025-04-24 20:31:18,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [326944796] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:31:18,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 20:31:18,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2025-04-24 20:31:18,057 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-24 20:31:18,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 276 is hopeless, skipping. [2025-04-24 20:31:18,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 283 is hopeless, skipping. [2025-04-24 20:31:18,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 290 is hopeless, skipping. [2025-04-24 20:31:18,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 297 is hopeless, skipping. [2025-04-24 20:31:18,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 304 is hopeless, skipping. [2025-04-24 20:31:18,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 311 is hopeless, skipping. [2025-04-24 20:31:18,058 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 318 is hopeless, skipping. [2025-04-24 20:31:18,058 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 326 [2025-04-24 20:31:18,058 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:31:18,058 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:31:18,058 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:31:18,058 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:31:18,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1183316389, now seen corresponding path program 12 times [2025-04-24 20:31:18,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:31:18,058 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389082227] [2025-04-24 20:31:18,058 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 20:31:18,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:31:18,067 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 329 statements into 54 equivalence classes. [2025-04-24 20:31:18,300 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 54 check-sat command(s) and asserted 329 of 329 statements. [2025-04-24 20:31:18,300 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 54 check-sat command(s) [2025-04-24 20:31:18,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:31:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 0 proven. 3279 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2025-04-24 20:31:32,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:31:32,016 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389082227] [2025-04-24 20:31:32,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389082227] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:31:32,016 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283626145] [2025-04-24 20:31:32,016 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 20:31:32,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:31:32,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:31:32,018 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 20:31:32,019 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 20:31:32,070 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 329 statements into 54 equivalence classes. [2025-04-24 20:31:32,235 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 54 check-sat command(s) and asserted 329 of 329 statements. [2025-04-24 20:31:32,235 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 54 check-sat command(s) [2025-04-24 20:31:32,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:31:32,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 236 conjuncts are in the unsatisfiable core [2025-04-24 20:31:32,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:31:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 92 proven. 7791 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:31:39,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 20:33:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 7887 backedges. 5922 proven. 1965 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 20:33:03,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283626145] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 20:33:03,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 20:33:03,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 185, 169] total 390 [2025-04-24 20:33:03,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038572578] [2025-04-24 20:33:03,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 20:33:03,196 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 391 states [2025-04-24 20:33:03,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 20:33:03,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 391 interpolants. [2025-04-24 20:33:03,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36270, Invalid=116220, Unknown=0, NotChecked=0, Total=152490 [2025-04-24 20:33:03,206 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:33:03,206 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 20:33:03,207 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 391 states, 391 states have (on average 1.8746803069053708) internal successors, (733), 390 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:33:03,207 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-24 20:33:24,942 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 326 states. [2025-04-24 20:33:24,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-04-24 20:33:25,143 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,SelfDestructingSolverStorable21,SelfDestructingSolverStorable22,SelfDestructingSolverStorable23,SelfDestructingSolverStorable24 [2025-04-24 20:33:25,143 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 20:33:25,143 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 20:33:25,143 INFO L139 ounterexampleChecker]: Examining path program with hash 1960565439, occurence #2 [2025-04-24 20:33:25,143 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 20:33:25,143 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 20:33:25,143 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:33:25,143 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 20:33:25,143 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:33:25,144 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 244 [2025-04-24 20:33:25,159 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:33:25,159 INFO L85 PathProgramCache]: Analyzing trace with hash -893385547, now seen corresponding path program 1 times [2025-04-24 20:33:25,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:33:25,159 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736879021] [2025-04-24 20:33:25,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:33:25,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:33:25,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 245 statements into 1 equivalence classes. [2025-04-24 20:33:25,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 245 of 245 statements. [2025-04-24 20:33:25,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:33:25,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 20:33:25,186 INFO L130 FreeRefinementEngine]: Strategy SMTINTERPOL found a feasible trace [2025-04-24 20:33:25,186 INFO L180 ounterexampleChecker]: Commutativity condition check vielded CONDITION_NOT_SATISFIED. Marking as hopeless. [2025-04-24 20:33:25,186 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 251 is hopeless, skipping. [2025-04-24 20:33:25,186 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 258 is hopeless, skipping. [2025-04-24 20:33:25,186 INFO L162 ounterexampleChecker]: Commutativity condition check at non-minimality point 265 is hopeless, skipping. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 274 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 277 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 280 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 283 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 286 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 289 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 292 [2025-04-24 20:33:25,186 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:25,186 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 294 [2025-04-24 20:33:25,203 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:33:25,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1689634852, now seen corresponding path program 1 times [2025-04-24 20:33:25,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-24 20:33:25,203 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024400827] [2025-04-24 20:33:25,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:33:25,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:33:25,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-04-24 20:33:25,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-04-24 20:33:25,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:33:25,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:33:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6683 backedges. 100 proven. 302 refuted. 0 times theorem prover too weak. 6281 trivial. 0 not checked. [2025-04-24 20:33:29,097 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-24 20:33:29,097 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024400827] [2025-04-24 20:33:29,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024400827] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:33:29,097 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1242299817] [2025-04-24 20:33:29,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 20:33:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:33:29,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-04-24 20:33:29,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-04-24 20:33:29,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:33:29,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:33:29,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 165 conjuncts are in the unsatisfiable core [2025-04-24 20:33:29,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:33:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 6683 backedges. 92 proven. 453 refuted. 0 times theorem prover too weak. 6138 trivial. 0 not checked. [2025-04-24 20:33:29,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1242299817] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:33:29,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 20:33:29,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 13 [2025-04-24 20:33:29,422 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-24 20:33:29,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 307 [2025-04-24 20:33:29,422 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:29,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 309 [2025-04-24 20:33:29,422 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:29,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 311 [2025-04-24 20:33:29,422 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 20:33:29,422 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 313 [2025-04-24 20:33:29,422 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 20:33:29,422 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 20:33:29,422 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 20:33:29,423 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 20:33:29,423 INFO L85 PathProgramCache]: Analyzing trace with hash -891506099, now seen corresponding path program 13 times [2025-04-24 20:33:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 20:33:29,423 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895559746] [2025-04-24 20:33:29,423 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 20:33:29,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 20:33:29,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 316 statements into 1 equivalence classes. [2025-04-24 20:33:29,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 316 of 316 statements. [2025-04-24 20:33:29,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:33:29,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:33:37,124 INFO L134 CoverageAnalysis]: Checked inductivity of 7159 backedges. 95 proven. 927 refuted. 0 times theorem prover too weak. 6137 trivial. 0 not checked. [2025-04-24 20:33:37,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 20:33:37,125 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895559746] [2025-04-24 20:33:37,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895559746] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 20:33:37,125 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774293369] [2025-04-24 20:33:37,125 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-24 20:33:37,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 20:33:37,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 20:33:37,126 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 20:33:37,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-24 20:33:37,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 316 statements into 1 equivalence classes. [2025-04-24 20:33:37,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 316 of 316 statements. [2025-04-24 20:33:37,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 20:33:37,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 20:33:37,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 239 conjuncts are in the unsatisfiable core [2025-04-24 20:33:37,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 20:33:45,965 INFO L134 CoverageAnalysis]: Checked inductivity of 7159 backedges. 92 proven. 7063 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-24 20:33:45,965 INFO L312 TraceCheckSpWp]: Computing backward predicates...