./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis SLEEP_NEW_STATES --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 20:22:32,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 20:22:32,961 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 20:22:32,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 20:22:32,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 20:22:32,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 20:22:32,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 20:22:32,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 20:22:32,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 20:22:32,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 20:22:32,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 20:22:32,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 20:22:32,990 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 20:22:32,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 20:22:32,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 20:22:32,991 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 20:22:32,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 20:22:32,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 20:22:32,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 20:22:32,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 20:22:32,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 20:22:32,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 20:22:32,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 20:22:32,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 20:22:32,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 20:22:32,994 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 20:22:32,994 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 20:22:32,994 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 -> faddac23864cc4e42f962ac43a8d0f59593853dbb1d55e3baabe0c76b2187dd4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> SLEEP_NEW_STATES [2025-03-19 20:22:33,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 20:22:33,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 20:22:33,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 20:22:33,213 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 20:22:33,213 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 20:22:33,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2025-03-19 20:22:34,441 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/625f087e7/baba3f9b8a4845fd93bbaab8c77d7bce/FLAG593c78bfa [2025-03-19 20:22:34,586 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 20:22:34,587 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2025-03-19 20:22:34,593 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/625f087e7/baba3f9b8a4845fd93bbaab8c77d7bce/FLAG593c78bfa [2025-03-19 20:22:35,441 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/625f087e7/baba3f9b8a4845fd93bbaab8c77d7bce [2025-03-19 20:22:35,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 20:22:35,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 20:22:35,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 20:22:35,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 20:22:35,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 20:22:35,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1350ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35, skipping insertion in model container [2025-03-19 20:22:35,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 20:22:35,585 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2781,2794] [2025-03-19 20:22:35,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 20:22:35,598 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 20:22:35,621 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2781,2794] [2025-03-19 20:22:35,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 20:22:35,633 INFO L204 MainTranslator]: Completed translation [2025-03-19 20:22:35,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35 WrapperNode [2025-03-19 20:22:35,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 20:22:35,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 20:22:35,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 20:22:35,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 20:22:35,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,670 INFO L138 Inliner]: procedures = 22, calls = 31, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 268 [2025-03-19 20:22:35,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 20:22:35,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 20:22:35,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 20:22:35,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 20:22:35,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,695 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 20:22:35,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 20:22:35,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 20:22:35,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 20:22:35,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (1/1) ... [2025-03-19 20:22:35,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 20:22:35,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:35,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-19 20:22:35,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-19 20:22:35,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 20:22:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-19 20:22:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-19 20:22:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-19 20:22:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-19 20:22:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 20:22:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-19 20:22:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-19 20:22:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 20:22:35,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 20:22:35,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-19 20:22:35,763 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 20:22:35,851 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 20:22:35,852 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 20:22:36,248 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 20:22:36,249 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 20:22:36,564 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 20:22:36,564 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 20:22:36,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 08:22:36 BoogieIcfgContainer [2025-03-19 20:22:36,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 20:22:36,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 20:22:36,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 20:22:36,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 20:22:36,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 08:22:35" (1/3) ... [2025-03-19 20:22:36,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7b4fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 08:22:36, skipping insertion in model container [2025-03-19 20:22:36,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 08:22:35" (2/3) ... [2025-03-19 20:22:36,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7b4fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 08:22:36, skipping insertion in model container [2025-03-19 20:22:36,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 08:22:36" (3/3) ... [2025-03-19 20:22:36,572 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2025-03-19 20:22:36,582 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 20:22:36,585 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-1.wvr.c that has 3 procedures, 18 locations, 18 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-19 20:22:36,585 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 20:22:36,623 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-19 20:22:36,652 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 20:22:36,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 20:22:36,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:36,656 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) [2025-03-19 20:22:36,657 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 [2025-03-19 20:22:36,714 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 20:22:36,726 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 20:22:36,732 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;@4ddea0eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 20:22:36,732 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-19 20:22:36,745 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:36,747 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:36,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1810956503, now seen corresponding path program 1 times [2025-03-19 20:22:36,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:36,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380249933] [2025-03-19 20:22:36,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:36,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-19 20:22:36,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-19 20:22:36,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:36,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380249933] [2025-03-19 20:22:37,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380249933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 20:22:37,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 20:22:37,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-19 20:22:37,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031140776] [2025-03-19 20:22:37,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 20:22:37,136 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 20:22:37,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:37,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 20:22:37,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-19 20:22:37,160 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:37,161 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:37,162 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2025-03-19 20:22:37,162 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:37,234 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:37,234 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 20:22:37,234 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:37,235 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:37,235 INFO L85 PathProgramCache]: Analyzing trace with hash -304335805, now seen corresponding path program 1 times [2025-03-19 20:22:37,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:37,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828834954] [2025-03-19 20:22:37,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:37,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:37,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-19 20:22:37,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-19 20:22:37,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:37,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:37,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:37,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828834954] [2025-03-19 20:22:37,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828834954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 20:22:37,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 20:22:37,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 20:22:37,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063200236] [2025-03-19 20:22:37,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 20:22:37,415 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 20:22:37,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:37,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 20:22:37,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 20:22:37,415 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:37,416 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:37,416 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 20:22:37,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:37,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:37,457 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:37,458 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:37,458 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 20:22:37,458 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:37,459 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:37,459 INFO L85 PathProgramCache]: Analyzing trace with hash 911964913, now seen corresponding path program 1 times [2025-03-19 20:22:37,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:37,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051917712] [2025-03-19 20:22:37,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:37,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:37,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 20:22:37,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 20:22:37,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:37,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:37,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:37,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:37,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051917712] [2025-03-19 20:22:37,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051917712] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:37,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865936949] [2025-03-19 20:22:37,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:37,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:37,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:37,616 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) [2025-03-19 20:22:37,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 20:22:37,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 20:22:37,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 20:22:37,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:37,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:37,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-19 20:22:37,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:37,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:37,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:37,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865936949] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:37,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-19 20:22:37,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2025-03-19 20:22:37,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929682499] [2025-03-19 20:22:37,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 20:22:37,798 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 20:22:37,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:37,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 20:22:37,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-19 20:22:37,800 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:37,800 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:37,800 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 20:22:37,800 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:37,800 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:37,800 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:37,867 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:37,868 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:37,868 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:37,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:38,073 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-19 20:22:38,073 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:38,074 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:38,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1624178350, now seen corresponding path program 1 times [2025-03-19 20:22:38,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:38,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617690970] [2025-03-19 20:22:38,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:38,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 20:22:38,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 20:22:38,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:38,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:38,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:38,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617690970] [2025-03-19 20:22:38,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617690970] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:38,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481208695] [2025-03-19 20:22:38,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:38,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:38,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:38,184 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) [2025-03-19 20:22:38,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-19 20:22:38,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 20:22:38,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 20:22:38,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:38,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:38,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-19 20:22:38,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:38,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:38,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481208695] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:38,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-19 20:22:38,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2025-03-19 20:22:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905513266] [2025-03-19 20:22:38,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 20:22:38,343 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 20:22:38,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:38,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 20:22:38,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-19 20:22:38,343 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:38,343 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:38,343 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 20:22:38,343 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:38,343 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:38,343 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:38,343 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:38,376 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:38,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:38,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:38,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:38,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:38,577 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:38,577 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:38,578 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:38,578 INFO L85 PathProgramCache]: Analyzing trace with hash -302757602, now seen corresponding path program 1 times [2025-03-19 20:22:38,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:38,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666702026] [2025-03-19 20:22:38,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:38,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-19 20:22:38,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-19 20:22:38,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:38,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:39,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:39,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666702026] [2025-03-19 20:22:39,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666702026] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:39,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219113066] [2025-03-19 20:22:39,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 20:22:39,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:39,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:39,402 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) [2025-03-19 20:22:39,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-19 20:22:39,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-19 20:22:39,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-19 20:22:39,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:39,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:39,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-19 20:22:39,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:39,495 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-19 20:22:39,663 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 59 [2025-03-19 20:22:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:39,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219113066] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:40,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:40,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 16 [2025-03-19 20:22:40,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589399432] [2025-03-19 20:22:40,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:40,376 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-19 20:22:40,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:40,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-19 20:22:40,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2025-03-19 20:22:40,377 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:40,377 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:40,377 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 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) [2025-03-19 20:22:40,377 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:40,377 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:40,377 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:40,377 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:40,377 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:40,504 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:40,504 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:40,504 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:40,504 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:40,505 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:40,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:40,709 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:40,709 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:40,709 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1675770752, now seen corresponding path program 2 times [2025-03-19 20:22:40,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:40,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462015928] [2025-03-19 20:22:40,710 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 20:22:40,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:40,716 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-19 20:22:40,725 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-03-19 20:22:40,725 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 20:22:40,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:40,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:40,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462015928] [2025-03-19 20:22:40,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462015928] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445789897] [2025-03-19 20:22:40,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 20:22:40,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:40,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:40,840 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) [2025-03-19 20:22:40,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-19 20:22:40,882 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-19 20:22:40,900 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-03-19 20:22:40,900 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 20:22:40,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:40,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-19 20:22:40,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:40,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:41,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:41,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445789897] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:41,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:41,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-03-19 20:22:41,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563844210] [2025-03-19 20:22:41,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:41,014 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-19 20:22:41,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:41,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-19 20:22:41,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-19 20:22:41,015 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:41,015 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:41,015 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 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) [2025-03-19 20:22:41,015 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,015 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:41,015 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,015 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,015 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:41,015 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:41,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,083 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:41,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:41,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:41,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:41,284 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-19 20:22:41,284 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:41,285 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:41,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1906983107, now seen corresponding path program 3 times [2025-03-19 20:22:41,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:41,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907341855] [2025-03-19 20:22:41,285 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 20:22:41,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:41,292 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-03-19 20:22:41,300 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-03-19 20:22:41,300 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 20:22:41,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:41,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:41,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907341855] [2025-03-19 20:22:41,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907341855] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:41,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517080144] [2025-03-19 20:22:41,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 20:22:41,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:41,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:41,396 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) [2025-03-19 20:22:41,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-19 20:22:41,450 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-03-19 20:22:41,468 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-03-19 20:22:41,468 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 20:22:41,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:41,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-19 20:22:41,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:41,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:41,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:41,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517080144] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:41,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:41,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-03-19 20:22:41,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832316445] [2025-03-19 20:22:41,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:41,581 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-19 20:22:41,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:41,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-19 20:22:41,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-19 20:22:41,581 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:41,581 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:41,582 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 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) [2025-03-19 20:22:41,582 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,582 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:41,582 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,582 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,582 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:41,582 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:41,582 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:41,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:41,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:41,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:41,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:41,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:41,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:41,852 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:41,853 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:41,853 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:41,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1900386927, now seen corresponding path program 4 times [2025-03-19 20:22:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:41,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048488836] [2025-03-19 20:22:41,853 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 20:22:41,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:41,859 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 20 statements into 2 equivalence classes. [2025-03-19 20:22:41,917 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-03-19 20:22:41,917 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 20:22:41,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:43,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:43,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048488836] [2025-03-19 20:22:43,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048488836] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:43,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696358806] [2025-03-19 20:22:43,092 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 20:22:43,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:43,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:43,093 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) [2025-03-19 20:22:43,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-19 20:22:43,137 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 20 statements into 2 equivalence classes. [2025-03-19 20:22:43,167 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-03-19 20:22:43,167 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 20:22:43,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:43,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-19 20:22:43,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:43,195 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 20:22:43,651 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 20:22:43,651 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 253 treesize of output 161 [2025-03-19 20:22:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:43,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 20:22:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696358806] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:47,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:47,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 9] total 26 [2025-03-19 20:22:47,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347927939] [2025-03-19 20:22:47,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:47,895 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-19 20:22:47,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:47,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-19 20:22:47,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2025-03-19 20:22:47,898 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:47,898 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:47,898 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.0384615384615383) internal successors, (53), 26 states have internal predecessors, (53), 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) [2025-03-19 20:22:47,898 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:47,898 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:47,898 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:47,898 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:47,898 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:47,898 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:47,899 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:47,899 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:48,676 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 20:22:48,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:48,877 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-03-19 20:22:48,877 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:48,877 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:48,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1216806467, now seen corresponding path program 5 times [2025-03-19 20:22:48,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:48,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593436494] [2025-03-19 20:22:48,878 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 20:22:48,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:48,887 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 21 statements into 3 equivalence classes. [2025-03-19 20:22:48,916 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 21 of 21 statements. [2025-03-19 20:22:48,916 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-19 20:22:48,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:49,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:49,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593436494] [2025-03-19 20:22:49,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593436494] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:49,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669257213] [2025-03-19 20:22:49,017 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 20:22:49,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:49,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:49,019 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) [2025-03-19 20:22:49,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-19 20:22:49,062 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 21 statements into 3 equivalence classes. [2025-03-19 20:22:49,082 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 21 of 21 statements. [2025-03-19 20:22:49,083 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-19 20:22:49,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:49,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-19 20:22:49,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:49,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:49,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669257213] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:49,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:49,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2025-03-19 20:22:49,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670245671] [2025-03-19 20:22:49,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:49,196 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-19 20:22:49,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:49,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-19 20:22:49,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2025-03-19 20:22:49,196 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:49,196 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:49,197 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 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) [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 20:22:49,197 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,256 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 20:22:49,257 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:49,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:49,457 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:49,457 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:49,457 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1298664939, now seen corresponding path program 6 times [2025-03-19 20:22:49,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:49,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867656209] [2025-03-19 20:22:49,457 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 20:22:49,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:49,463 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 22 statements into 3 equivalence classes. [2025-03-19 20:22:49,477 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 22 of 22 statements. [2025-03-19 20:22:49,477 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-19 20:22:49,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:49,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867656209] [2025-03-19 20:22:49,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867656209] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136699233] [2025-03-19 20:22:49,581 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 20:22:49,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:49,583 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) [2025-03-19 20:22:49,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-19 20:22:49,624 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 22 statements into 3 equivalence classes. [2025-03-19 20:22:49,645 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 22 of 22 statements. [2025-03-19 20:22:49,645 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-19 20:22:49,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:49,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-19 20:22:49,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:49,723 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:49,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 20:22:49,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136699233] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:49,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:49,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-03-19 20:22:49,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142078752] [2025-03-19 20:22:49,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:49,789 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-19 20:22:49,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:49,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-19 20:22:49,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2025-03-19 20:22:49,790 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:49,790 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:49,790 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 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) [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:49,790 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:49,908 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:49,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:50,109 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-19 20:22:50,109 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:50,109 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:50,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2010878376, now seen corresponding path program 7 times [2025-03-19 20:22:50,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:50,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763536460] [2025-03-19 20:22:50,109 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 20:22:50,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:50,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-19 20:22:50,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-19 20:22:50,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:50,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:50,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763536460] [2025-03-19 20:22:50,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763536460] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984474358] [2025-03-19 20:22:50,232 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 20:22:50,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:50,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:50,233 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) [2025-03-19 20:22:50,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-19 20:22:50,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-19 20:22:50,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-19 20:22:50,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 20:22:50,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:50,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-19 20:22:50,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:50,371 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:50,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984474358] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:50,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:50,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-03-19 20:22:50,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112371199] [2025-03-19 20:22:50,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:50,432 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-19 20:22:50,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:50,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-19 20:22:50,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2025-03-19 20:22:50,433 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:50,433 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:50,433 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 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) [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:50,433 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 20:22:50,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:50,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:50,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:50,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:50,719 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-19 20:22:50,720 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:50,720 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:50,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1456727400, now seen corresponding path program 8 times [2025-03-19 20:22:50,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:50,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754962786] [2025-03-19 20:22:50,720 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 20:22:50,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:50,728 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-03-19 20:22:50,740 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 20:22:50,741 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 20:22:50,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:50,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:50,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754962786] [2025-03-19 20:22:50,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754962786] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:50,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561298865] [2025-03-19 20:22:50,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 20:22:50,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:50,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:50,867 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) [2025-03-19 20:22:50,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-19 20:22:50,910 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-03-19 20:22:50,932 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 20:22:50,932 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 20:22:50,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:50,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-19 20:22:50,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-19 20:22:51,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-19 20:22:51,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561298865] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:51,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-19 20:22:51,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 10] total 20 [2025-03-19 20:22:51,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341401513] [2025-03-19 20:22:51,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 20:22:51,055 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 20:22:51,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:51,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 20:22:51,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2025-03-19 20:22:51,055 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:51,055 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:51,055 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2025-03-19 20:22:51,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:51,055 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,056 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,106 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 20:22:51,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:51,307 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:51,307 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:51,307 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2126026459, now seen corresponding path program 9 times [2025-03-19 20:22:51,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:51,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94637489] [2025-03-19 20:22:51,307 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 20:22:51,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:51,313 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 4 equivalence classes. [2025-03-19 20:22:51,341 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 20:22:51,341 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-19 20:22:51,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:51,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94637489] [2025-03-19 20:22:51,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94637489] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631966655] [2025-03-19 20:22:51,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 20:22:51,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:51,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:51,463 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 20:22:51,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-19 20:22:51,504 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 4 equivalence classes. [2025-03-19 20:22:51,529 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 20:22:51,529 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-19 20:22:51,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:51,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-19 20:22:51,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:51,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:51,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631966655] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:51,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:51,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2025-03-19 20:22:51,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073687893] [2025-03-19 20:22:51,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:51,681 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-19 20:22:51,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:51,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-19 20:22:51,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2025-03-19 20:22:51,681 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:51,681 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:51,681 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 21 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 20:22:51,681 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 20:22:51,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:51,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 20:22:51,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 20:22:51,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-19 20:22:51,961 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-19 20:22:51,962 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:51,962 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:51,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1988216375, now seen corresponding path program 10 times [2025-03-19 20:22:51,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:51,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121807973] [2025-03-19 20:22:51,962 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 20:22:51,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:51,968 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 25 statements into 2 equivalence classes. [2025-03-19 20:22:51,975 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-03-19 20:22:51,975 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 20:22:51,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:52,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 20:22:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121807973] [2025-03-19 20:22:52,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121807973] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 20:22:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743034510] [2025-03-19 20:22:52,137 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 20:22:52,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 20:22:52,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 20:22:52,139 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 20:22:52,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-19 20:22:52,186 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 25 statements into 2 equivalence classes. [2025-03-19 20:22:52,210 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-03-19 20:22:52,210 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 20:22:52,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 20:22:52,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-19 20:22:52,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 20:22:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:52,328 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 20:22:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 20:22:52,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743034510] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 20:22:52,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 20:22:52,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2025-03-19 20:22:52,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212112654] [2025-03-19 20:22:52,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 20:22:52,463 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-19 20:22:52,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 20:22:52,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-19 20:22:52,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2025-03-19 20:22:52,464 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:52,464 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 20:22:52,464 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 23 states have internal predecessors, (52), 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) [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 20:22:52,465 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:52,647 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 20:22:52,648 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 20:22:52,648 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 20:22:52,648 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-19 20:22:52,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-19 20:22:52,848 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-19 20:22:52,848 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 20:22:52,849 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 20:22:52,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1902480715, now seen corresponding path program 11 times [2025-03-19 20:22:52,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 20:22:52,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829554368] [2025-03-19 20:22:52,849 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 20:22:52,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 20:22:52,855 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 26 statements into 5 equivalence classes. [2025-03-19 20:22:53,247 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 26 of 26 statements. [2025-03-19 20:22:53,247 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-03-19 20:22:53,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15