./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 c01f4f7d2658db6d4a951cb25555f85a195a1e66c897cc0a3f349ba621d29da1 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 12:23:42,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 12:23:42,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 12:23:42,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 12:23:42,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 12:23:42,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 12:23:42,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 12:23:42,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 12:23:42,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 12:23:42,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 12:23:42,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 12:23:42,436 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 12:23:42,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 12:23:42,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 12:23:42,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 12:23:42,437 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 12:23:42,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 12:23:42,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 12:23:42,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 12:23:42,439 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 12:23:42,439 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 12:23:42,439 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-jdk21/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 -> c01f4f7d2658db6d4a951cb25555f85a195a1e66c897cc0a3f349ba621d29da1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-01-23 12:23:42,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 12:23:42,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 12:23:42,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 12:23:42,701 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 12:23:42,702 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 12:23:42,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2025-01-23 12:23:43,930 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bd980d413/13178edbf189465785e4ce9d396bd750/FLAGcb6ca1619 [2025-01-23 12:23:44,088 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 12:23:44,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2025-01-23 12:23:44,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bd980d413/13178edbf189465785e4ce9d396bd750/FLAGcb6ca1619 [2025-01-23 12:23:44,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/bd980d413/13178edbf189465785e4ce9d396bd750 [2025-01-23 12:23:44,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 12:23:44,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 12:23:44,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 12:23:44,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 12:23:44,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 12:23:44,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332da4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44, skipping insertion in model container [2025-01-23 12:23:44,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 12:23:44,275 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[2888,2901] [2025-01-23 12:23:44,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 12:23:44,295 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 12:23:44,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[2888,2901] [2025-01-23 12:23:44,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 12:23:44,376 INFO L204 MainTranslator]: Completed translation [2025-01-23 12:23:44,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44 WrapperNode [2025-01-23 12:23:44,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 12:23:44,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 12:23:44,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 12:23:44,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 12:23:44,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,409 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 142 [2025-01-23 12:23:44,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 12:23:44,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 12:23:44,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 12:23:44,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 12:23:44,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,430 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 12:23:44,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 12:23:44,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 12:23:44,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 12:23:44,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (1/1) ... [2025-01-23 12:23:44,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 12:23:44,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:23:44,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 12:23:44,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 12:23:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 12:23:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-23 12:23:44,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-23 12:23:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-23 12:23:44,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-23 12:23:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-23 12:23:44,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-23 12:23:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-01-23 12:23:44,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-01-23 12:23:44,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 12:23:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-01-23 12:23:44,504 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-01-23 12:23:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 12:23:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-23 12:23:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 12:23:44,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 12:23:44,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 12:23:44,506 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 12:23:44,609 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 12:23:44,611 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 12:23:44,821 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 12:23:44,821 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 12:23:44,981 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 12:23:44,982 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-23 12:23:44,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 12:23:44 BoogieIcfgContainer [2025-01-23 12:23:44,983 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 12:23:44,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 12:23:44,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 12:23:44,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 12:23:44,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 12:23:44" (1/3) ... [2025-01-23 12:23:44,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3790d4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 12:23:44, skipping insertion in model container [2025-01-23 12:23:44,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 12:23:44" (2/3) ... [2025-01-23 12:23:44,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3790d4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 12:23:44, skipping insertion in model container [2025-01-23 12:23:44,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 12:23:44" (3/3) ... [2025-01-23 12:23:44,993 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2025-01-23 12:23:45,004 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 12:23:45,006 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-min-max-inc-dec.wvr.c that has 6 procedures, 67 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-01-23 12:23:45,006 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 12:23:45,056 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-01-23 12:23:45,085 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 12:23:45,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 12:23:45,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:23:45,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-01-23 12:23:45,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-01-23 12:23:45,159 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 12:23:45,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 12:23:45,172 INFO L333 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;@782ce4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 12:23:45,172 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-01-23 12:23:46,572 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-23 12:23:46,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:23:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash -988181589, now seen corresponding path program 1 times [2025-01-23 12:23:46,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:23:46,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094003278] [2025-01-23 12:23:46,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:23:46,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:23:46,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-01-23 12:23:46,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-01-23 12:23:46,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:23:46,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:23:47,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:23:47,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:23:47,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094003278] [2025-01-23 12:23:47,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094003278] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 12:23:47,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 12:23:47,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 12:23:47,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392272013] [2025-01-23 12:23:47,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 12:23:47,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 12:23:47,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:23:47,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 12:23:47,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 12:23:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:23:47,159 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:23:47,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2025-01-23 12:23:47,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:23:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:23:47,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 12:23:47,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-23 12:23:47,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:23:47,278 INFO L85 PathProgramCache]: Analyzing trace with hash 15956757, now seen corresponding path program 1 times [2025-01-23 12:23:47,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:23:47,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793898794] [2025-01-23 12:23:47,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:23:47,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:23:47,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-01-23 12:23:47,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-01-23 12:23:47,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:23:47,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:23:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:23:48,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:23:48,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793898794] [2025-01-23 12:23:48,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793898794] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 12:23:48,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126349157] [2025-01-23 12:23:48,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 12:23:48,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:23:48,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:23:48,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 12:23:48,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-23 12:23:49,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-01-23 12:23:49,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-01-23 12:23:49,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 12:23:49,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:23:49,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-23 12:23:49,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 12:23:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:23:49,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 12:23:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:23:49,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126349157] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 12:23:49,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 12:23:49,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 7, 7] total 46 [2025-01-23 12:23:49,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143005353] [2025-01-23 12:23:49,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 12:23:49,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-01-23 12:23:49,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:23:49,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-01-23 12:23:49,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1830, Unknown=0, NotChecked=0, Total=2070 [2025-01-23 12:23:49,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:23:49,531 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:23:49,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.956521739130435) internal successors, (320), 46 states have internal predecessors, (320), 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) [2025-01-23 12:23:49,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:23:49,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:23:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:23:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:23:49,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-23 12:23:50,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:23:50,129 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-23 12:23:50,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:23:50,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1079474411, now seen corresponding path program 2 times [2025-01-23 12:23:50,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:23:50,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131143336] [2025-01-23 12:23:50,131 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 12:23:50,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:23:50,160 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 211 statements into 2 equivalence classes. [2025-01-23 12:23:50,185 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 209 of 211 statements. [2025-01-23 12:23:50,185 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 12:23:50,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:23:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-23 12:23:50,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:23:50,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131143336] [2025-01-23 12:23:50,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131143336] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 12:23:50,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 12:23:50,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2025-01-23 12:23:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483360035] [2025-01-23 12:23:50,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 12:23:50,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-23 12:23:50,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:23:50,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-23 12:23:50,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2025-01-23 12:23:50,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:23:50,981 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:23:50,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.357142857142857) internal successors, (206), 28 states have internal predecessors, (206), 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) [2025-01-23 12:23:50,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:23:50,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:23:50,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:23:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:23:51,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:23:51,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-23 12:23:51,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 12:23:51,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-23 12:23:51,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:23:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -626194694, now seen corresponding path program 3 times [2025-01-23 12:23:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:23:51,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537314068] [2025-01-23 12:23:51,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 12:23:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:23:51,499 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 233 statements into 2 equivalence classes. [2025-01-23 12:23:51,513 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 209 of 233 statements. [2025-01-23 12:23:51,513 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-23 12:23:51,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:23:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-23 12:23:51,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:23:51,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537314068] [2025-01-23 12:23:51,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537314068] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 12:23:51,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 12:23:51,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-23 12:23:51,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150097397] [2025-01-23 12:23:51,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 12:23:51,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-23 12:23:51,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:23:51,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-23 12:23:51,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-23 12:23:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:23:51,911 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:23:51,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2025-01-23 12:23:51,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:23:51,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:23:51,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-01-23 12:23:51,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:24:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:24:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:24:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-23 12:24:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 12:24:09,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-23 12:24:09,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-23 12:24:09,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:24:09,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2114398086, now seen corresponding path program 4 times [2025-01-23 12:24:09,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:24:09,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064310041] [2025-01-23 12:24:09,599 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-23 12:24:09,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:24:09,625 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 233 statements into 2 equivalence classes. [2025-01-23 12:24:09,640 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 211 of 233 statements. [2025-01-23 12:24:09,641 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-23 12:24:09,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:24:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-23 12:24:09,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:24:09,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064310041] [2025-01-23 12:24:09,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064310041] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 12:24:09,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 12:24:09,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-23 12:24:09,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844932380] [2025-01-23 12:24:09,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 12:24:09,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-23 12:24:09,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:24:09,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-23 12:24:09,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-23 12:24:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:24:09,972 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:24:09,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 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) [2025-01-23 12:24:09,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:24:09,972 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:24:09,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2025-01-23 12:24:09,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 12:24:09,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:24:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:24:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:24:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-23 12:24:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 12:24:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-23 12:24:30,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-23 12:24:30,840 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-23 12:24:30,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:24:30,840 INFO L85 PathProgramCache]: Analyzing trace with hash 612041529, now seen corresponding path program 5 times [2025-01-23 12:24:30,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:24:30,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224154032] [2025-01-23 12:24:30,841 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 12:24:30,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:24:30,855 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 208 statements into 3 equivalence classes. [2025-01-23 12:24:30,891 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 208 of 208 statements. [2025-01-23 12:24:30,892 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 12:24:30,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:24:31,084 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-23 12:24:31,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:24:31,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224154032] [2025-01-23 12:24:31,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224154032] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 12:24:31,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651374228] [2025-01-23 12:24:31,085 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-23 12:24:31,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:24:31,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 12:24:31,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-23 12:24:31,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-23 12:24:31,153 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 208 statements into 3 equivalence classes. [2025-01-23 12:24:31,382 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 208 of 208 statements. [2025-01-23 12:24:31,382 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-01-23 12:24:31,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:24:31,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-23 12:24:31,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 12:24:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:24:31,697 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 12:24:31,919 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 12:24:31,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651374228] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 12:24:31,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 12:24:31,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 12] total 27 [2025-01-23 12:24:31,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132420835] [2025-01-23 12:24:31,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 12:24:31,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-01-23 12:24:31,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:24:31,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-01-23 12:24:31,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2025-01-23 12:24:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:24:31,922 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:24:31,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 13.62962962962963) internal successors, (368), 27 states have internal predecessors, (368), 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) [2025-01-23 12:24:31,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:24:31,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:24:31,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2025-01-23 12:24:31,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 12:24:31,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-23 12:24:31,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:25:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:25:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:25:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-01-23 12:25:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-23 12:25:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-23 12:25:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 12:25:02,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-23 12:25:03,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 12:25:03,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-23 12:25:03,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 12:25:03,064 INFO L85 PathProgramCache]: Analyzing trace with hash -246407050, now seen corresponding path program 6 times [2025-01-23 12:25:03,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 12:25:03,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467484743] [2025-01-23 12:25:03,064 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-23 12:25:03,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 12:25:03,286 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 227 statements into 4 equivalence classes. [2025-01-23 12:25:03,298 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 127 of 227 statements. [2025-01-23 12:25:03,299 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-23 12:25:03,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 12:25:03,494 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2025-01-23 12:25:03,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 12:25:03,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467484743] [2025-01-23 12:25:03,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467484743] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 12:25:03,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 12:25:03,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-23 12:25:03,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627974704] [2025-01-23 12:25:03,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 12:25:03,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-23 12:25:03,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 12:25:03,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-23 12:25:03,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-23 12:25:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 12:25:03,497 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 12:25:03,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 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) [2025-01-23 12:25:03,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 12:25:03,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 12:25:03,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2025-01-23 12:25:03,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-01-23 12:25:03,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-01-23 12:25:03,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 12:25:03,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.