./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/fib_safe-11.i --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/pthread/fib_safe-11.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67ab3b79be699544cc101a76da66f98a1e0e6116d5865ddc6f998abd49388964 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 18:27:08,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 18:27:08,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 18:27:08,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 18:27:08,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 18:27:08,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 18:27:08,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 18:27:08,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 18:27:08,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 18:27:08,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 18:27:08,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 18:27:08,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 18:27:08,178 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 18:27:08,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 18:27:08,179 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 18:27:08,180 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 18:27:08,180 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 18:27:08,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:27:08,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:27:08,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:27:08,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:08,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 18:27:08,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 18:27:08,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:08,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 18:27:08,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 18:27:08,182 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 18:27:08,182 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 18:27:08,182 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 -> 67ab3b79be699544cc101a76da66f98a1e0e6116d5865ddc6f998abd49388964 [2025-04-24 18:27:08,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 18:27:08,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 18:27:08,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 18:27:08,397 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 18:27:08,398 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 18:27:08,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/fib_safe-11.i [2025-04-24 18:27:09,684 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ea33b020b/9031e923e6a1422f8ed8407d8eaf5143/FLAG9aeb5c738 [2025-04-24 18:27:09,907 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 18:27:09,907 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/fib_safe-11.i [2025-04-24 18:27:09,921 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ea33b020b/9031e923e6a1422f8ed8407d8eaf5143/FLAG9aeb5c738 [2025-04-24 18:27:10,735 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ea33b020b/9031e923e6a1422f8ed8407d8eaf5143 [2025-04-24 18:27:10,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 18:27:10,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 18:27:10,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 18:27:10,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 18:27:10,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 18:27:10,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:27:10" (1/1) ... [2025-04-24 18:27:10,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4d7c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:10, skipping insertion in model container [2025-04-24 18:27:10,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 06:27:10" (1/1) ... [2025-04-24 18:27:10,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 18:27:11,044 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/pthread/fib_safe-11.i[30241,30254] [2025-04-24 18:27:11,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:27:11,089 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 18:27:11,133 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/pthread/fib_safe-11.i[30241,30254] [2025-04-24 18:27:11,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 18:27:11,163 INFO L204 MainTranslator]: Completed translation [2025-04-24 18:27:11,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11 WrapperNode [2025-04-24 18:27:11,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 18:27:11,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 18:27:11,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 18:27:11,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 18:27:11,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,204 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2025-04-24 18:27:11,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 18:27:11,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 18:27:11,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 18:27:11,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 18:27:11,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,221 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 18:27:11,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 18:27:11,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 18:27:11,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 18:27:11,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (1/1) ... [2025-04-24 18:27:11,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 18:27:11,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:11,256 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 18:27:11,258 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 18:27:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-04-24 18:27:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-04-24 18:27:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-04-24 18:27:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-04-24 18:27:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 18:27:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 18:27:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 18:27:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 18:27:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 18:27:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 18:27:11,275 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 18:27:11,373 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 18:27:11,375 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 18:27:11,490 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 18:27:11,490 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 18:27:11,568 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 18:27:11,568 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 18:27:11,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:27:11 BoogieIcfgContainer [2025-04-24 18:27:11,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 18:27:11,570 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 18:27:11,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 18:27:11,574 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 18:27:11,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 06:27:10" (1/3) ... [2025-04-24 18:27:11,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5336ecef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 06:27:11, skipping insertion in model container [2025-04-24 18:27:11,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 06:27:11" (2/3) ... [2025-04-24 18:27:11,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5336ecef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 06:27:11, skipping insertion in model container [2025-04-24 18:27:11,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 06:27:11" (3/3) ... [2025-04-24 18:27:11,577 INFO L128 eAbstractionObserver]: Analyzing ICFG fib_safe-11.i [2025-04-24 18:27:11,588 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 18:27:11,589 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fib_safe-11.i that has 3 procedures, 26 locations, 27 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-24 18:27:11,590 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 18:27:11,625 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-24 18:27:11,656 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:27:11,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 18:27:11,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:11,658 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 18:27:11,660 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 18:27:11,715 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 18:27:11,727 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 18:27:11,732 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;@3b59b272, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 18:27:11,732 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-24 18:27:12,013 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 18:27:12,016 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,017 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #1 [2025-04-24 18:27:12,017 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:12,017 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,021 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,021 INFO L85 PathProgramCache]: Analyzing trace with hash -585029914, now seen corresponding path program 1 times [2025-04-24 18:27:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,028 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066530940] [2025-04-24 18:27:12,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-24 18:27:12,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-24 18:27:12,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,204 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 18:27:12,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:12,205 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066530940] [2025-04-24 18:27:12,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066530940] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:12,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 18:27:12,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 18:27:12,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893085529] [2025-04-24 18:27:12,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:12,210 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 18:27:12,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:12,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 18:27:12,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 18:27:12,225 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,226 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:12,227 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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 18:27:12,227 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,266 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 18:27:12,266 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 18:27:12,266 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,266 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #2 [2025-04-24 18:27:12,266 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:12,267 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:12,267 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,267 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:12,267 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,267 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:12,282 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,283 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:12,283 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,283 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-24 18:27:12,283 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,283 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 18:27:12,283 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,283 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:12,283 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,284 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1099917870, now seen corresponding path program 1 times [2025-04-24 18:27:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,284 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272090514] [2025-04-24 18:27:12,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 18:27:12,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 18:27:12,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:12,394 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272090514] [2025-04-24 18:27:12,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272090514] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:12,394 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247174330] [2025-04-24 18:27:12,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:12,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:12,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:12,397 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 18:27:12,399 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 18:27:12,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 18:27:12,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 18:27:12,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:12,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:12,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-24 18:27:12,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,536 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:12,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247174330] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:12,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:12,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-04-24 18:27:12,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656771565] [2025-04-24 18:27:12,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:12,572 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 18:27:12,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:12,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 18:27:12,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-24 18:27:12,573 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,573 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:12,573 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 18:27:12,573 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,573 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:12,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:12,656 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:12,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-24 18:27:12,861 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 18:27:12,862 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 18:27:12,862 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:12,862 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #3 [2025-04-24 18:27:12,862 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:12,862 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:12,863 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,863 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:12,863 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,863 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:12,863 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,863 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:12,863 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:12,863 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2025-04-24 18:27:12,863 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,863 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 18:27:12,864 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:12,864 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:12,864 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:12,864 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1414699802, now seen corresponding path program 2 times [2025-04-24 18:27:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:12,865 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811349875] [2025-04-24 18:27:12,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:12,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:12,876 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-04-24 18:27:12,912 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 18:27:12,912 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:12,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:13,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:13,094 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811349875] [2025-04-24 18:27:13,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811349875] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:13,094 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3744483] [2025-04-24 18:27:13,094 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:13,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:13,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:13,096 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 18:27:13,098 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 18:27:13,147 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-04-24 18:27:13,178 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-04-24 18:27:13,178 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:13,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:13,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-24 18:27:13,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:13,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:13,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3744483] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:13,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:13,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-04-24 18:27:13,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684866990] [2025-04-24 18:27:13,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:13,355 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 18:27:13,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:13,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 18:27:13,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-04-24 18:27:13,356 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:13,356 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:13,356 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 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 18:27:13,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:13,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:13,356 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:13,463 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:13,463 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:13,463 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:13,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:13,663 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:13,664 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 18:27:13,664 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:13,664 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #4 [2025-04-24 18:27:13,664 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:13,664 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:13,664 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,664 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:13,664 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,664 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:13,664 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:13,664 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:13,664 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:13,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-04-24 18:27:13,665 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,665 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 18:27:13,665 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:13,665 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:13,665 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:13,665 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:13,665 INFO L85 PathProgramCache]: Analyzing trace with hash 286974438, now seen corresponding path program 3 times [2025-04-24 18:27:13,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:13,665 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38745583] [2025-04-24 18:27:13,665 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:13,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:13,675 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 91 statements into 11 equivalence classes. [2025-04-24 18:27:13,787 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 91 of 91 statements. [2025-04-24 18:27:13,788 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:27:13,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:14,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:14,042 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38745583] [2025-04-24 18:27:14,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38745583] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:14,042 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931533014] [2025-04-24 18:27:14,042 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:27:14,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:14,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:14,044 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 18:27:14,045 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 18:27:14,091 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 91 statements into 11 equivalence classes. [2025-04-24 18:27:14,128 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 91 of 91 statements. [2025-04-24 18:27:14,128 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:27:14,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:14,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 18:27:14,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:14,231 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:14,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931533014] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:14,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:14,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-04-24 18:27:14,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681644328] [2025-04-24 18:27:14,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:14,457 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-04-24 18:27:14,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:14,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-04-24 18:27:14,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-04-24 18:27:14,458 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,459 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:14,459 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 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 18:27:14,459 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,459 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,459 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,459 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:14,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:14,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:14,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:14,641 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:14,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-24 18:27:14,846 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:14,846 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 18:27:14,846 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:14,846 INFO L139 ounterexampleChecker]: Examining path program with hash -1831457800, occurence #5 [2025-04-24 18:27:14,846 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:14,846 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:14,846 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:14,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:14,847 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:14,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:14,847 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:14,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:14,847 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:14,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 171 [2025-04-24 18:27:14,847 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:14,847 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-04-24 18:27:14,847 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:14,847 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:14,847 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:14,847 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:14,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1203837926, now seen corresponding path program 4 times [2025-04-24 18:27:14,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:14,847 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156059889] [2025-04-24 18:27:14,848 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:27:14,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:14,859 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 175 statements into 2 equivalence classes. [2025-04-24 18:27:14,890 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 175 of 175 statements. [2025-04-24 18:27:14,891 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:27:14,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 1671 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-04-24 18:27:15,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:15,446 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156059889] [2025-04-24 18:27:15,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156059889] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:15,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 18:27:15,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2025-04-24 18:27:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130654920] [2025-04-24 18:27:15,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:15,447 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-04-24 18:27:15,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:15,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-04-24 18:27:15,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2025-04-24 18:27:15,449 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,449 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:15,450 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.1) internal successors, (142), 20 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 18:27:15,450 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,450 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,450 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,450 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:15,450 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:15,717 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:15,718 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:15,719 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:15,719 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:15,719 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:15,719 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 18:27:15,719 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 18:27:15,719 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:15,720 INFO L139 ounterexampleChecker]: Examining path program with hash -730712328, occurence #1 [2025-04-24 18:27:15,720 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:15,720 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:15,720 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:15,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1401890619, now seen corresponding path program 1 times [2025-04-24 18:27:15,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:15,720 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073113120] [2025-04-24 18:27:15,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:15,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:15,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-04-24 18:27:15,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-04-24 18:27:15,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:15,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:16,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:16,319 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073113120] [2025-04-24 18:27:16,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073113120] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:16,319 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89290984] [2025-04-24 18:27:16,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:16,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:16,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:16,323 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 18:27:16,323 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 18:27:16,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-04-24 18:27:16,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-04-24 18:27:16,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:16,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:16,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-04-24 18:27:16,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2025-04-24 18:27:16,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 18:27:16,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89290984] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 18:27:16,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 18:27:16,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [25] total 37 [2025-04-24 18:27:16,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145611952] [2025-04-24 18:27:16,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 18:27:16,663 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-24 18:27:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:16,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-24 18:27:16,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2025-04-24 18:27:16,664 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:16,664 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:16,664 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 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 18:27:16,664 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:16,664 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:16,664 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:16,664 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:16,665 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:16,665 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:16,811 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:16,811 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:16,811 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:16,811 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:16,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:16,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:16,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-24 18:27:17,012 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 18:27:17,012 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 18:27:17,012 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:17,013 INFO L139 ounterexampleChecker]: Examining path program with hash 1175464527, occurence #1 [2025-04-24 18:27:17,013 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:27:17,013 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:17,013 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1587470795, now seen corresponding path program 1 times [2025-04-24 18:27:17,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:17,013 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805234933] [2025-04-24 18:27:17,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:17,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:17,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-04-24 18:27:17,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-04-24 18:27:17,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:17,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:17,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:17,430 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805234933] [2025-04-24 18:27:17,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805234933] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:17,430 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434984473] [2025-04-24 18:27:17,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 18:27:17,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:17,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:17,433 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 18:27:17,434 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 18:27:17,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-04-24 18:27:17,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-04-24 18:27:17,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 18:27:17,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:17,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-04-24 18:27:17,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:17,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:17,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434984473] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:17,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:17,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 27 [2025-04-24 18:27:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844804058] [2025-04-24 18:27:17,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:17,923 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-04-24 18:27:17,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:17,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-04-24 18:27:17,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2025-04-24 18:27:17,924 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:17,924 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:17,925 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.592592592592593) internal successors, (124), 27 states have internal predecessors, (124), 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 18:27:17,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:17,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:17,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:17,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:17,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:17,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:17,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:18,015 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:18,015 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:18,015 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:18,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:18,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:18,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:18,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:27:18,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-24 18:27:18,216 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 18:27:18,217 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 18:27:18,217 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:27:18,218 INFO L139 ounterexampleChecker]: Examining path program with hash 1175464527, occurence #2 [2025-04-24 18:27:18,218 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:27:18,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:27:18,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:18,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:27:18,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:18,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:27:18,218 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:18,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:27:18,218 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:27:18,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-04-24 18:27:18,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:18,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-04-24 18:27:18,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:18,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2025-04-24 18:27:18,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:27:18,218 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:27:18,218 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:27:18,219 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:27:18,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1334032939, now seen corresponding path program 2 times [2025-04-24 18:27:18,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:27:18,219 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715277707] [2025-04-24 18:27:18,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:18,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:27:18,225 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 107 statements into 2 equivalence classes. [2025-04-24 18:27:18,244 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:27:18,244 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:18,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:21,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:27:21,344 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715277707] [2025-04-24 18:27:21,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715277707] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:27:21,344 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043796127] [2025-04-24 18:27:21,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 18:27:21,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:27:21,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:27:21,346 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 18:27:21,348 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 18:27:21,389 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 107 statements into 2 equivalence classes. [2025-04-24 18:27:21,425 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:27:21,425 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 18:27:21,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:27:21,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 105 conjuncts are in the unsatisfiable core [2025-04-24 18:27:21,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:27:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 66 proven. 421 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:24,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:27:28,600 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 487 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:27:28,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043796127] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:27:28,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:27:28,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2025-04-24 18:27:28,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840167530] [2025-04-24 18:27:28,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:27:28,601 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2025-04-24 18:27:28,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:27:28,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2025-04-24 18:27:28,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2190, Invalid=22302, Unknown=0, NotChecked=0, Total=24492 [2025-04-24 18:27:28,614 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:27:28,614 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:27:28,614 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:27:28,615 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:02,059 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:02,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:02,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:02,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:28:02,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:28:02,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:28:02,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:28:02,060 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2025-04-24 18:28:02,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-24 18:28:02,261 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 18:28:02,261 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 18:28:02,261 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:28:02,263 INFO L139 ounterexampleChecker]: Examining path program with hash -1466014005, occurence #1 [2025-04-24 18:28:02,263 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:28:02,263 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:28:02,263 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:28:02,263 INFO L85 PathProgramCache]: Analyzing trace with hash -948617663, now seen corresponding path program 3 times [2025-04-24 18:28:02,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:28:02,263 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729041729] [2025-04-24 18:28:02,263 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:28:02,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:28:02,270 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 107 statements into 11 equivalence classes. [2025-04-24 18:28:02,358 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:28:02,358 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:28:02,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:04,595 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 414 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:04,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:28:04,595 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729041729] [2025-04-24 18:28:04,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729041729] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:28:04,596 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979161339] [2025-04-24 18:28:04,596 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 18:28:04,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:28:04,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:28:04,597 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 18:28:04,598 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 18:28:04,701 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 107 statements into 11 equivalence classes. [2025-04-24 18:28:04,739 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:28:04,739 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-04-24 18:28:04,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:28:04,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 105 conjuncts are in the unsatisfiable core [2025-04-24 18:28:04,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:28:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 55 proven. 359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:07,710 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:28:11,535 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 414 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:28:11,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979161339] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:28:11,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:28:11,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 157 [2025-04-24 18:28:11,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157077538] [2025-04-24 18:28:11,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:28:11,536 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2025-04-24 18:28:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:28:11,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2025-04-24 18:28:11,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2128, Invalid=22678, Unknown=0, NotChecked=0, Total=24806 [2025-04-24 18:28:11,541 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:28:11,541 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:28:11,541 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 158 states, 158 states have (on average 2.018987341772152) internal successors, (319), 157 states have internal predecessors, (319), 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 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2025-04-24 18:28:11,541 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2025-04-24 18:29:16,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2025-04-24 18:29:16,019 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 18:29:16,212 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:29:16,213 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 18:29:16,213 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:29:16,213 INFO L139 ounterexampleChecker]: Examining path program with hash 1757724883, occurence #1 [2025-04-24 18:29:16,213 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:29:16,213 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:29:16,213 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:29:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1579089365, now seen corresponding path program 4 times [2025-04-24 18:29:16,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:29:16,214 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401317168] [2025-04-24 18:29:16,214 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:29:16,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:29:16,220 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 107 statements into 2 equivalence classes. [2025-04-24 18:29:16,237 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:29:16,237 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:29:16,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:29:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 433 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:29:18,346 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401317168] [2025-04-24 18:29:18,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401317168] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:29:18,346 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244825840] [2025-04-24 18:29:18,346 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 18:29:18,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:29:18,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:29:18,348 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 18:29:18,348 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 18:29:18,383 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 107 statements into 2 equivalence classes. [2025-04-24 18:29:18,412 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:29:18,412 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 18:29:18,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:29:18,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 105 conjuncts are in the unsatisfiable core [2025-04-24 18:29:18,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:29:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 66 proven. 367 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:21,470 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:29:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 433 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:29:25,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244825840] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:29:25,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:29:25,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 157 [2025-04-24 18:29:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646943066] [2025-04-24 18:29:25,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:29:25,327 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2025-04-24 18:29:25,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:29:25,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2025-04-24 18:29:25,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2099, Invalid=22707, Unknown=0, NotChecked=0, Total=24806 [2025-04-24 18:29:25,331 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:29:25,331 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:29:25,331 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 158 states, 158 states have (on average 2.018987341772152) internal successors, (319), 157 states have internal predecessors, (319), 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 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 228 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2025-04-24 18:29:25,331 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:30:19,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2025-04-24 18:30:19,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2025-04-24 18:30:19,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-04-24 18:30:20,042 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-04-24 18:30:20,042 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 18:30:20,042 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:30:20,042 INFO L139 ounterexampleChecker]: Examining path program with hash -1459356658, occurence #1 [2025-04-24 18:30:20,042 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 18:30:20,042 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:30:20,042 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:30:20,042 INFO L85 PathProgramCache]: Analyzing trace with hash 740446763, now seen corresponding path program 5 times [2025-04-24 18:30:20,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:30:20,043 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240815716] [2025-04-24 18:30:20,043 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 18:30:20,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:30:20,048 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 107 statements into 11 equivalence classes. [2025-04-24 18:30:20,085 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:30:20,085 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-24 18:30:20,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:30:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:30:22,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:30:22,057 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240815716] [2025-04-24 18:30:22,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240815716] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:30:22,057 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755450769] [2025-04-24 18:30:22,057 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 18:30:22,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:30:22,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:30:22,059 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 18:30:22,059 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 18:30:22,095 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 107 statements into 11 equivalence classes. [2025-04-24 18:30:22,126 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:30:22,126 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-04-24 18:30:22,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:30:22,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 105 conjuncts are in the unsatisfiable core [2025-04-24 18:30:22,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:30:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 55 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:30:25,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:30:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:30:28,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755450769] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:30:28,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:30:28,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 156 [2025-04-24 18:30:28,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075367537] [2025-04-24 18:30:28,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:30:28,824 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2025-04-24 18:30:28,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:30:28,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2025-04-24 18:30:28,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2201, Invalid=22291, Unknown=0, NotChecked=0, Total=24492 [2025-04-24 18:30:28,827 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:30:28,827 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:30:28,827 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 157 states have (on average 2.031847133757962) internal successors, (319), 156 states have internal predecessors, (319), 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 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 249 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 216 states. [2025-04-24 18:30:28,827 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 301 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 277 states. [2025-04-24 18:32:29,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2025-04-24 18:32:29,022 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 18:32:29,217 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-04-24 18:32:29,217 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 18:32:29,217 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 18:32:29,217 INFO L139 ounterexampleChecker]: Examining path program with hash -1466014005, occurence #2 [2025-04-24 18:32:29,217 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 18:32:29,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 18:32:29,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:29,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 18:32:29,217 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:29,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 18:32:29,217 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:32:29,217 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 18:32:29,217 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 18:32:29,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 101 [2025-04-24 18:32:29,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:29,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-04-24 18:32:29,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:29,218 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2025-04-24 18:32:29,218 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 18:32:29,218 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 18:32:29,218 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 18:32:29,218 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 18:32:29,218 INFO L85 PathProgramCache]: Analyzing trace with hash 953146201, now seen corresponding path program 6 times [2025-04-24 18:32:29,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 18:32:29,218 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597284615] [2025-04-24 18:32:29,218 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 18:32:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 18:32:29,223 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 107 statements into 11 equivalence classes. [2025-04-24 18:32:29,256 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:32:29,257 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2025-04-24 18:32:29,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:32:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 414 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:32:31,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 18:32:31,074 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597284615] [2025-04-24 18:32:31,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597284615] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 18:32:31,074 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092001545] [2025-04-24 18:32:31,074 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 18:32:31,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 18:32:31,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 18:32:31,076 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 18:32:31,077 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 18:32:31,116 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 107 statements into 11 equivalence classes. [2025-04-24 18:32:31,149 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) and asserted 107 of 107 statements. [2025-04-24 18:32:31,149 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2025-04-24 18:32:31,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 18:32:31,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 105 conjuncts are in the unsatisfiable core [2025-04-24 18:32:31,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 18:32:34,071 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 55 proven. 359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:32:34,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 18:32:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 414 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 18:32:37,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092001545] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 18:32:37,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 18:32:37,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 157 [2025-04-24 18:32:37,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265864538] [2025-04-24 18:32:37,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 18:32:37,820 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 158 states [2025-04-24 18:32:37,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 18:32:37,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2025-04-24 18:32:37,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2142, Invalid=22664, Unknown=0, NotChecked=0, Total=24806 [2025-04-24 18:32:37,822 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 18:32:37,822 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 18:32:37,822 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 158 states, 158 states have (on average 2.018987341772152) internal successors, (319), 157 states have internal predecessors, (319), 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 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-24 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-04-24 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-24 18:32:37,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 301 states. [2025-04-24 18:32:37,823 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2025-04-24 18:32:37,823 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 277 states. [2025-04-24 18:32:37,823 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 183 states. [2025-04-24 18:32:37,823 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.