./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i --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/goblint-regression/28-race_reach_74-tricky_address1_racefree.i -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 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 --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 10:16:55,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 10:16:55,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 10:16:55,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 10:16:55,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 10:16:55,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 10:16:55,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 10:16:55,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 10:16:55,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 10:16:55,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 10:16:55,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 10:16:55,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 10:16:55,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 10:16:55,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 10:16:55,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 10:16:55,686 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 10:16:55,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 10:16:55,686 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 10:16:55,686 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 10:16:55,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 10:16:55,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 10:16:55,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 10:16:55,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 10:16:55,687 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 10:16:55,687 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 -> 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 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 10:16:55,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 10:16:56,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 10:16:56,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 10:16:56,003 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 10:16:56,003 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 10:16:56,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2025-01-23 10:16:57,185 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/9b1d568e7/40a0788cb1d142d1979634326b589262/FLAGde574621d [2025-01-23 10:16:57,437 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 10:16:57,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2025-01-23 10:16:57,446 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/9b1d568e7/40a0788cb1d142d1979634326b589262/FLAGde574621d [2025-01-23 10:16:57,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/9b1d568e7/40a0788cb1d142d1979634326b589262 [2025-01-23 10:16:57,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 10:16:57,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 10:16:57,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 10:16:57,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 10:16:57,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 10:16:57,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:16:57" (1/1) ... [2025-01-23 10:16:57,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30267417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:57, skipping insertion in model container [2025-01-23 10:16:57,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 10:16:57" (1/1) ... [2025-01-23 10:16:57,802 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 10:16:58,142 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/goblint-regression/28-race_reach_74-tricky_address1_racefree.i[41323,41336] [2025-01-23 10:16:58,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 10:16:58,192 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 10:16:58,294 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/goblint-regression/28-race_reach_74-tricky_address1_racefree.i[41323,41336] [2025-01-23 10:16:58,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 10:16:58,348 INFO L204 MainTranslator]: Completed translation [2025-01-23 10:16:58,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58 WrapperNode [2025-01-23 10:16:58,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 10:16:58,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 10:16:58,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 10:16:58,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 10:16:58,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,388 INFO L138 Inliner]: procedures = 271, calls = 109, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 253 [2025-01-23 10:16:58,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 10:16:58,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 10:16:58,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 10:16:58,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 10:16:58,397 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,414 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 10:16:58,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 10:16:58,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 10:16:58,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 10:16:58,426 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (1/1) ... [2025-01-23 10:16:58,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 10:16:58,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:16:58,454 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 10:16:58,460 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 10:16:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-23 10:16:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-23 10:16:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-23 10:16:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 10:16:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 10:16:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-23 10:16:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 10:16:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-23 10:16:58,480 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-23 10:16:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 10:16:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 10:16:58,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 10:16:58,482 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 10:16:58,605 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 10:16:58,607 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 10:16:58,935 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 10:16:58,935 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 10:16:59,258 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-23 10:16:59,259 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2025-01-23 10:16:59,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:16:59 BoogieIcfgContainer [2025-01-23 10:16:59,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-23 10:16:59,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-23 10:16:59,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-23 10:16:59,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-23 10:16:59,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.01 10:16:57" (1/3) ... [2025-01-23 10:16:59,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192b3989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 10:16:59, skipping insertion in model container [2025-01-23 10:16:59,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 10:16:58" (2/3) ... [2025-01-23 10:16:59,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192b3989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.01 10:16:59, skipping insertion in model container [2025-01-23 10:16:59,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 10:16:59" (3/3) ... [2025-01-23 10:16:59,267 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_74-tricky_address1_racefree.i [2025-01-23 10:16:59,277 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-23 10:16:59,278 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_74-tricky_address1_racefree.i that has 2 procedures, 67 locations, 1 initial locations, 13 loop locations, and 2 error locations. [2025-01-23 10:16:59,278 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-23 10:16:59,309 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-23 10:16:59,339 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:16:59,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-01-23 10:16:59,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:16:59,343 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 10:16:59,345 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 10:16:59,410 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 10:16:59,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ======== [2025-01-23 10:16:59,423 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;@2aa52f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:16:59,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 10:16:59,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:16:59,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:16:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash 676445299, now seen corresponding path program 1 times [2025-01-23 10:16:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:16:59,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095169886] [2025-01-23 10:16:59,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:16:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:16:59,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-23 10:16:59,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-23 10:16:59,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:16:59,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:16:59,930 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 10:16:59,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:16:59,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095169886] [2025-01-23 10:16:59,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095169886] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:16:59,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:16:59,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 10:16:59,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879541797] [2025-01-23 10:16:59,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:16:59,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:16:59,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:16:59,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:16:59,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:16:59,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:16:59,954 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:16:59,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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) [2025-01-23 10:16:59,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:01,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-23 10:17:01,315 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:01,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:01,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1958709401, now seen corresponding path program 1 times [2025-01-23 10:17:01,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:01,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480277503] [2025-01-23 10:17:01,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:01,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:01,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-23 10:17:01,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-23 10:17:01,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:01,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:01,401 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 10:17:01,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:01,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480277503] [2025-01-23 10:17:01,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480277503] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:01,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353068945] [2025-01-23 10:17:01,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:01,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:01,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:01,407 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 10:17:01,409 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 10:17:01,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-23 10:17:01,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-23 10:17:01,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:01,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:01,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-23 10:17:01,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:01,502 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 10:17:01,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:01,512 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 10:17:01,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353068945] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:01,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:01,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-23 10:17:01,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338749559] [2025-01-23 10:17:01,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:01,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:17:01,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:01,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:17:01,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:17:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:01,515 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:01,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 10:17:01,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:01,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:01,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:01,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:01,617 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 10:17:01,815 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 10:17:01,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:01,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:01,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1861346573, now seen corresponding path program 2 times [2025-01-23 10:17:01,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:01,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369165872] [2025-01-23 10:17:01,816 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:01,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:01,830 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-01-23 10:17:01,890 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 20 statements. [2025-01-23 10:17:01,890 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:17:01,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:02,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 10:17:02,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:02,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369165872] [2025-01-23 10:17:02,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369165872] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:02,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:02,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-23 10:17:02,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212825041] [2025-01-23 10:17:02,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:02,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:17:02,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:02,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:17:02,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:17:02,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:02,690 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:02,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 10:17:02,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:02,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:02,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:03,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:03,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-23 10:17:03,458 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:03,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:03,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1207218775, now seen corresponding path program 1 times [2025-01-23 10:17:03,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:03,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489789813] [2025-01-23 10:17:03,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:03,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:03,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-23 10:17:03,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-23 10:17:03,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:03,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 10:17:03,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:03,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489789813] [2025-01-23 10:17:03,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489789813] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:03,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:03,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-23 10:17:03,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29049101] [2025-01-23 10:17:03,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:03,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-23 10:17:03,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:03,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-23 10:17:03,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-23 10:17:03,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:03,526 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:03,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 10:17:03,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:03,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:03,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:03,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:03,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:03,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:03,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:03,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-23 10:17:03,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-23 10:17:03,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-23 10:17:03,687 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-01-23 10:17:03,688 INFO L319 ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE (1/2) [2025-01-23 10:17:03,690 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:03,691 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 10:17:03,691 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 10:17:03,692 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;@2aa52f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:03,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-23 10:17:03,694 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:03,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1174314709, now seen corresponding path program 1 times [2025-01-23 10:17:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:03,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203129207] [2025-01-23 10:17:03,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:03,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-23 10:17:03,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-23 10:17:03,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:03,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:03,718 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 10:17:03,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:03,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203129207] [2025-01-23 10:17:03,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203129207] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:03,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:03,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 10:17:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984601897] [2025-01-23 10:17:03,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:03,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:17:03,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:03,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:17:03,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:17:03,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:03,719 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:03,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 10:17:03,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:03,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:03,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-23 10:17:03,738 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:03,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1603585005, now seen corresponding path program 1 times [2025-01-23 10:17:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:03,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123785884] [2025-01-23 10:17:03,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:03,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:03,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-23 10:17:03,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-23 10:17:03,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:03,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:03,773 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 10:17:03,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123785884] [2025-01-23 10:17:03,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123785884] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244327478] [2025-01-23 10:17:03,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:03,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:03,776 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 10:17:03,779 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 10:17:03,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-23 10:17:03,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-23 10:17:03,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:03,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:03,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-23 10:17:03,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:03,864 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 10:17:03,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:03,882 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 10:17:03,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244327478] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:03,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:03,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-23 10:17:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525787589] [2025-01-23 10:17:03,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:03,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:17:03,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:03,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:17:03,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:17:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:03,884 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:03,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 10:17:03,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:03,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:03,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:03,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:03,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-23 10:17:04,110 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 10:17:04,111 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:04,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:04,111 INFO L85 PathProgramCache]: Analyzing trace with hash -340821407, now seen corresponding path program 2 times [2025-01-23 10:17:04,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:04,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846853280] [2025-01-23 10:17:04,112 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:04,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:04,120 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-01-23 10:17:04,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-01-23 10:17:04,129 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 10:17:04,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:04,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:04,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846853280] [2025-01-23 10:17:04,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846853280] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:04,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885948207] [2025-01-23 10:17:04,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:04,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:04,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:04,208 INFO L229 MonitoredProcess]: Starting monitored process 5 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 10:17:04,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-23 10:17:04,253 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-01-23 10:17:04,279 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-01-23 10:17:04,279 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 10:17:04,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:04,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-23 10:17:04,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:04,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885948207] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:04,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:04,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-01-23 10:17:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212569291] [2025-01-23 10:17:04,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:04,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-23 10:17:04,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:04,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-23 10:17:04,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-23 10:17:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:04,336 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:04,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 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 10:17:04,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:04,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:04,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:04,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-23 10:17:04,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:04,573 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:04,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:04,573 INFO L85 PathProgramCache]: Analyzing trace with hash 995282657, now seen corresponding path program 3 times [2025-01-23 10:17:04,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:04,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689909479] [2025-01-23 10:17:04,573 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 10:17:04,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:04,587 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 22 statements into 6 equivalence classes. [2025-01-23 10:17:04,650 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 10:17:04,657 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-23 10:17:04,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 10:17:04,657 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-23 10:17:04,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-23 10:17:04,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 10:17:04,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:04,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 10:17:04,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-23 10:17:04,700 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-23 10:17:04,701 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-01-23 10:17:04,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-23 10:17:04,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-23 10:17:04,703 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2025-01-23 10:17:04,703 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2025-01-23 10:17:04,704 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-23 10:17:04,704 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-23 10:17:04,729 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-23 10:17:04,732 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:04,743 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 10:17:04,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of2ForFork0 ======== [2025-01-23 10:17:04,745 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;@2aa52f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:04,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 10:17:05,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:05,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:05,562 INFO L85 PathProgramCache]: Analyzing trace with hash 477367300, now seen corresponding path program 1 times [2025-01-23 10:17:05,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:05,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949426183] [2025-01-23 10:17:05,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:05,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:05,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-23 10:17:05,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-23 10:17:05,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:05,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:05,591 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 10:17:05,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:05,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949426183] [2025-01-23 10:17:05,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949426183] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:05,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:05,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 10:17:05,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737912910] [2025-01-23 10:17:05,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:05,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:17:05,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:05,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:17:05,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:17:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:05,592 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:05,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 10:17:05,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:10,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-23 10:17:10,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:10,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1260191243, now seen corresponding path program 1 times [2025-01-23 10:17:10,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:10,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226373535] [2025-01-23 10:17:10,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:10,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:10,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-23 10:17:10,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-23 10:17:10,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:10,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:10,241 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 10:17:10,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:10,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226373535] [2025-01-23 10:17:10,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226373535] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:10,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756452572] [2025-01-23 10:17:10,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:10,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:10,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:10,243 INFO L229 MonitoredProcess]: Starting monitored process 6 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 10:17:10,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-23 10:17:10,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-23 10:17:10,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-23 10:17:10,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:10,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:10,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-23 10:17:10,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:10,326 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 10:17:10,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:10,335 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 10:17:10,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756452572] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:10,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:10,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-23 10:17:10,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366330180] [2025-01-23 10:17:10,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:10,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:17:10,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:10,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:17:10,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:17:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:10,336 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:10,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 10:17:10,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:10,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:10,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-23 10:17:11,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-23 10:17:11,101 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:11,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:11,102 INFO L85 PathProgramCache]: Analyzing trace with hash -829142231, now seen corresponding path program 2 times [2025-01-23 10:17:11,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:11,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508221223] [2025-01-23 10:17:11,102 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:11,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:11,108 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-01-23 10:17:11,157 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 24 statements. [2025-01-23 10:17:11,161 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:17:11,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:12,117 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 10:17:12,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508221223] [2025-01-23 10:17:12,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508221223] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:12,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:12,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-23 10:17:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882928457] [2025-01-23 10:17:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:12,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-23 10:17:12,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:12,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-23 10:17:12,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-23 10:17:12,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:12,118 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:12,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 10:17:12,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:12,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:12,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:14,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-23 10:17:14,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:14,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:14,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1278687384, now seen corresponding path program 1 times [2025-01-23 10:17:14,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:14,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089606947] [2025-01-23 10:17:14,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:14,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:14,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-23 10:17:14,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 10:17:14,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:14,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:14,294 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 10:17:14,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:14,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089606947] [2025-01-23 10:17:14,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089606947] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:14,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:14,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 10:17:14,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319331429] [2025-01-23 10:17:14,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:14,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:17:14,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:14,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:17:14,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:17:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:14,296 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:14,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 10:17:14,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:14,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:14,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:14,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:15,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:15,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-23 10:17:15,291 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:15,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:15,291 INFO L85 PathProgramCache]: Analyzing trace with hash 904490725, now seen corresponding path program 1 times [2025-01-23 10:17:15,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:15,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388224161] [2025-01-23 10:17:15,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:15,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:15,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-23 10:17:15,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-23 10:17:15,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:15,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:15,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:15,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:15,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388224161] [2025-01-23 10:17:15,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388224161] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:15,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970132915] [2025-01-23 10:17:15,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:15,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:15,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:15,348 INFO L229 MonitoredProcess]: Starting monitored process 7 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 10:17:15,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-23 10:17:15,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-23 10:17:15,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-23 10:17:15,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:15,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:15,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-23 10:17:15,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:15,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:15,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:15,468 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:15,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970132915] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:15,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:15,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-01-23 10:17:15,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78213785] [2025-01-23 10:17:15,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:15,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-23 10:17:15,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:15,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-23 10:17:15,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-23 10:17:15,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:15,469 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:15,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 12 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) [2025-01-23 10:17:15,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:15,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:15,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:15,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:15,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:15,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-23 10:17:16,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-23 10:17:16,097 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:16,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:16,098 INFO L85 PathProgramCache]: Analyzing trace with hash 897868709, now seen corresponding path program 2 times [2025-01-23 10:17:16,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:16,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844572666] [2025-01-23 10:17:16,098 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:16,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:16,112 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-01-23 10:17:16,154 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 38 statements. [2025-01-23 10:17:16,157 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:17:16,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:17:18,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:18,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844572666] [2025-01-23 10:17:18,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844572666] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:18,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:18,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-23 10:17:18,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183192111] [2025-01-23 10:17:18,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:18,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-23 10:17:18,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:18,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-23 10:17:18,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-23 10:17:18,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:18,260 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:18,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 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 10:17:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:21,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-23 10:17:21,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-23 10:17:21,999 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:22,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:22,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1491174937, now seen corresponding path program 1 times [2025-01-23 10:17:22,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:22,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057752106] [2025-01-23 10:17:22,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:22,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:22,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-23 10:17:22,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-23 10:17:22,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:22,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:17:22,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:22,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057752106] [2025-01-23 10:17:22,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057752106] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:22,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:22,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 10:17:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899798401] [2025-01-23 10:17:22,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:22,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-23 10:17:22,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:22,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-23 10:17:22,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-23 10:17:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:22,051 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:22,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 10:17:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-01-23 10:17:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 10:17:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:17:23,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-23 10:17:23,112 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:23,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:23,112 INFO L85 PathProgramCache]: Analyzing trace with hash 204843908, now seen corresponding path program 1 times [2025-01-23 10:17:23,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:23,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341984217] [2025-01-23 10:17:23,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:23,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:23,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-23 10:17:23,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-23 10:17:23,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:23,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:17:25,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:25,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341984217] [2025-01-23 10:17:25,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341984217] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:25,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:25,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-23 10:17:25,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842837251] [2025-01-23 10:17:25,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:25,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-23 10:17:25,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:25,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-23 10:17:25,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2025-01-23 10:17:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:25,169 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:25,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 13 states have internal predecessors, (40), 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 10:17:25,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 10:17:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:17:25,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 10:17:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:17:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 10:17:27,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-23 10:17:27,177 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:27,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:27,177 INFO L85 PathProgramCache]: Analyzing trace with hash 774184780, now seen corresponding path program 2 times [2025-01-23 10:17:27,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:27,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725060358] [2025-01-23 10:17:27,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:27,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:27,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-01-23 10:17:27,211 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 39 of 49 statements. [2025-01-23 10:17:27,212 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:17:27,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:29,142 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:17:29,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:29,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725060358] [2025-01-23 10:17:29,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725060358] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:29,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:29,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-23 10:17:29,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410012635] [2025-01-23 10:17:29,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:29,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-23 10:17:29,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:29,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-23 10:17:29,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-01-23 10:17:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:29,146 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:29,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 11 states have internal predecessors, (40), 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 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-01-23 10:17:29,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-23 10:17:30,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-23 10:17:30,546 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-23 10:17:30,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-23 10:17:30,548 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2025-01-23 10:17:30,548 INFO L319 ceAbstractionStarter]: Result for error location t_funThread1of2ForFork0 was SAFE (1/3) [2025-01-23 10:17:30,549 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:30,554 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 10:17:30,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 10:17:30,555 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;@2aa52f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:30,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-23 10:17:30,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:30,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:30,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1272448158, now seen corresponding path program 1 times [2025-01-23 10:17:30,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:30,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247103545] [2025-01-23 10:17:30,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:30,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:30,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-23 10:17:30,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 10:17:30,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:30,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:30,579 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 10:17:30,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:30,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247103545] [2025-01-23 10:17:30,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247103545] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:30,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:30,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 10:17:30,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96252254] [2025-01-23 10:17:30,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:30,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:17:30,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:30,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:17:30,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:17:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:30,580 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:30,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 10:17:30,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:30,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-23 10:17:30,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:30,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash 281150805, now seen corresponding path program 1 times [2025-01-23 10:17:30,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:30,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862039859] [2025-01-23 10:17:30,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:30,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:30,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-23 10:17:30,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 10:17:30,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:30,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:30,628 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 10:17:30,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:30,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862039859] [2025-01-23 10:17:30,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862039859] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:30,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428040584] [2025-01-23 10:17:30,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:30,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:30,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:30,632 INFO L229 MonitoredProcess]: Starting monitored process 8 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 10:17:30,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-23 10:17:30,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-23 10:17:30,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-23 10:17:30,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:30,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:30,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-23 10:17:30,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:30,722 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 10:17:30,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:30,730 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 10:17:30,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428040584] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:30,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:30,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-23 10:17:30,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679843929] [2025-01-23 10:17:30,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:30,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:17:30,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:30,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:17:30,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:17:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:30,731 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:30,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 10:17:30,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:30,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:30,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:30,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-23 10:17:30,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:30,963 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:30,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash -63677449, now seen corresponding path program 2 times [2025-01-23 10:17:30,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:30,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343548094] [2025-01-23 10:17:30,964 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:30,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:30,969 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-01-23 10:17:30,975 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 10:17:30,975 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 10:17:30,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:31,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:31,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:31,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343548094] [2025-01-23 10:17:31,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343548094] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:31,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875028881] [2025-01-23 10:17:31,011 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:31,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:31,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:31,013 INFO L229 MonitoredProcess]: Starting monitored process 9 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 10:17:31,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-23 10:17:31,070 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-01-23 10:17:31,099 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-01-23 10:17:31,100 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 10:17:31,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:31,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-23 10:17:31,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:31,109 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:31,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875028881] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:31,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:31,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-01-23 10:17:31,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858956110] [2025-01-23 10:17:31,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:31,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-23 10:17:31,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:31,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-23 10:17:31,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-23 10:17:31,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:31,142 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:31,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 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 10:17:31,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:31,142 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:31,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:31,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:31,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-23 10:17:31,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:31,380 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:31,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:31,380 INFO L85 PathProgramCache]: Analyzing trace with hash 175062839, now seen corresponding path program 3 times [2025-01-23 10:17:31,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:31,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499398703] [2025-01-23 10:17:31,380 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 10:17:31,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:31,386 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 6 equivalence classes. [2025-01-23 10:17:31,404 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 10:17:31,404 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-23 10:17:31,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 10:17:31,404 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-23 10:17:31,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-23 10:17:31,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 10:17:31,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:31,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 10:17:31,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-23 10:17:31,420 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-23 10:17:31,420 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-01-23 10:17:31,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-23 10:17:31,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-23 10:17:31,421 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2025-01-23 10:17:31,421 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/3) [2025-01-23 10:17:31,422 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-23 10:17:31,422 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-23 10:17:31,438 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-23 10:17:31,439 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:31,448 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 10:17:31,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-01-23 10:17:31,449 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;@2aa52f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:31,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-23 10:17:31,757 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:31,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:31,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1024483133, now seen corresponding path program 1 times [2025-01-23 10:17:31,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:31,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002855341] [2025-01-23 10:17:31,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:31,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:31,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-23 10:17:31,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-23 10:17:31,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:31,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:31,779 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 10:17:31,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:31,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002855341] [2025-01-23 10:17:31,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002855341] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:31,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:31,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 10:17:31,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634244652] [2025-01-23 10:17:31,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:31,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:17:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:31,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:17:31,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:17:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:31,780 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:31,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 10:17:31,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:32,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-23 10:17:32,165 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:32,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:32,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1903561591, now seen corresponding path program 1 times [2025-01-23 10:17:32,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:32,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912559320] [2025-01-23 10:17:32,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:32,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:32,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-23 10:17:32,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-23 10:17:32,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:32,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:32,203 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 10:17:32,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:32,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912559320] [2025-01-23 10:17:32,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912559320] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:32,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881698205] [2025-01-23 10:17:32,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:32,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:32,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:32,206 INFO L229 MonitoredProcess]: Starting monitored process 10 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 10:17:32,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-23 10:17:32,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-23 10:17:32,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-23 10:17:32,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:32,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:32,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-23 10:17:32,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:32,306 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 10:17:32,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:32,314 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 10:17:32,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881698205] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:32,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:32,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-23 10:17:32,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612536373] [2025-01-23 10:17:32,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:32,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:17:32,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:32,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:17:32,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:17:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:32,315 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:32,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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) [2025-01-23 10:17:32,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:32,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:32,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-23 10:17:32,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:32,551 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:32,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:32,551 INFO L85 PathProgramCache]: Analyzing trace with hash -144705362, now seen corresponding path program 2 times [2025-01-23 10:17:32,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:32,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629673873] [2025-01-23 10:17:32,551 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:32,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:32,558 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-01-23 10:17:32,607 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-01-23 10:17:32,607 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 10:17:32,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:32,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:32,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629673873] [2025-01-23 10:17:32,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629673873] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:32,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222847873] [2025-01-23 10:17:32,644 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:32,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:32,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:32,646 INFO L229 MonitoredProcess]: Starting monitored process 11 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 10:17:32,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-23 10:17:32,718 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-01-23 10:17:32,813 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-01-23 10:17:32,813 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-23 10:17:32,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:32,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-23 10:17:32,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:32,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:17:32,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222847873] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:32,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:32,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-01-23 10:17:32,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018941788] [2025-01-23 10:17:32,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:32,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-23 10:17:32,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:32,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-23 10:17:32,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-23 10:17:32,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:32,856 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:32,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 12 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) [2025-01-23 10:17:32,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:32,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:32,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:17:32,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-23 10:17:33,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-01-23 10:17:33,115 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-01-23 10:17:33,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash 120969934, now seen corresponding path program 3 times [2025-01-23 10:17:33,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:33,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265340558] [2025-01-23 10:17:33,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 10:17:33,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:33,123 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 45 statements into 6 equivalence classes. [2025-01-23 10:17:33,157 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 45 of 45 statements. [2025-01-23 10:17:33,157 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-01-23 10:17:33,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 10:17:33,157 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-23 10:17:33,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-23 10:17:33,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-23 10:17:33,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:33,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-23 10:17:33,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-23 10:17:33,176 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-23 10:17:33,176 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-01-23 10:17:33,176 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-01-23 10:17:33,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-23 10:17:33,177 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1] [2025-01-23 10:17:33,177 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (1/4) [2025-01-23 10:17:33,177 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-23 10:17:33,177 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-01-23 10:17:33,194 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-23 10:17:33,195 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:33,206 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-01-23 10:17:33,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread4of4ForFork0 ======== [2025-01-23 10:17:33,206 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;@2aa52f19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-23 10:17:33,206 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-23 10:17:33,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:33,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:33,743 INFO L85 PathProgramCache]: Analyzing trace with hash 59740636, now seen corresponding path program 1 times [2025-01-23 10:17:33,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:33,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862058720] [2025-01-23 10:17:33,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:33,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:33,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-01-23 10:17:33,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-01-23 10:17:33,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:33,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:33,765 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 10:17:33,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:33,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862058720] [2025-01-23 10:17:33,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862058720] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:17:33,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:17:33,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-23 10:17:33,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628502764] [2025-01-23 10:17:33,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:17:33,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:17:33,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:33,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:17:33,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:17:33,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:33,766 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:33,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 10:17:33,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:51,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-01-23 10:17:51,018 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:51,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:51,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1695776656, now seen corresponding path program 1 times [2025-01-23 10:17:51,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:51,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41438070] [2025-01-23 10:17:51,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:51,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:51,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-23 10:17:51,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-23 10:17:51,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:51,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:51,053 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 10:17:51,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:17:51,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41438070] [2025-01-23 10:17:51,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41438070] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:17:51,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878038736] [2025-01-23 10:17:51,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:17:51,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:17:51,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:17:51,056 INFO L229 MonitoredProcess]: Starting monitored process 12 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 10:17:51,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-23 10:17:51,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-23 10:17:51,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-23 10:17:51,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:17:51,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:17:51,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-23 10:17:51,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:17:51,197 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 10:17:51,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:17:51,209 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 10:17:51,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878038736] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:17:51,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:17:51,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-23 10:17:51,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911468075] [2025-01-23 10:17:51,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:17:51,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:17:51,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:17:51,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:17:51,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:17:51,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:51,210 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:17:51,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 10:17:51,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:51,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:17:57,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:17:57,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:17:57,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-23 10:17:57,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-01-23 10:17:57,662 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:17:57,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:17:57,663 INFO L85 PathProgramCache]: Analyzing trace with hash 891964621, now seen corresponding path program 2 times [2025-01-23 10:17:57,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:17:57,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268555650] [2025-01-23 10:17:57,663 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:17:57,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:17:57,673 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 80 statements into 2 equivalence classes. [2025-01-23 10:17:57,871 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 76 of 80 statements. [2025-01-23 10:17:57,872 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:17:57,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:18:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 10:18:32,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:18:32,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268555650] [2025-01-23 10:18:32,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268555650] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:18:32,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:18:32,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2025-01-23 10:18:32,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937487827] [2025-01-23 10:18:32,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:18:32,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-23 10:18:32,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:18:32,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-23 10:18:32,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2025-01-23 10:18:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:18:32,809 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:18:32,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.6666666666666665) internal successors, (77), 20 states have internal predecessors, (77), 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 10:18:32,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:32,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:18:32,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:18:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:18:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 10:18:42,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-01-23 10:18:42,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:18:42,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:18:42,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1169690768, now seen corresponding path program 1 times [2025-01-23 10:18:42,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:18:42,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476459047] [2025-01-23 10:18:42,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:18:42,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:18:42,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-23 10:18:42,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-23 10:18:42,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:18:42,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:18:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-23 10:18:42,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:18:42,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476459047] [2025-01-23 10:18:42,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476459047] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:18:42,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:18:42,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-23 10:18:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97102660] [2025-01-23 10:18:42,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:18:42,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-23 10:18:42,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:18:42,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-23 10:18:42,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-23 10:18:42,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:18:42,413 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:18:42,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 10:18:42,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:42,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:18:42,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 10:18:42,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:18:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:18:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 10:18:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:46,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-01-23 10:18:46,800 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:18:46,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:18:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1617908739, now seen corresponding path program 1 times [2025-01-23 10:18:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:18:46,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540447046] [2025-01-23 10:18:46,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:18:46,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:18:46,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-23 10:18:46,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-23 10:18:46,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:18:46,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:18:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:18:46,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:18:46,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540447046] [2025-01-23 10:18:46,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540447046] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-23 10:18:46,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538143410] [2025-01-23 10:18:46,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:18:46,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:18:46,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 10:18:46,875 INFO L229 MonitoredProcess]: Starting monitored process 13 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 10:18:46,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-23 10:18:46,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-23 10:18:47,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-23 10:18:47,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:18:47,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:18:47,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-23 10:18:47,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-23 10:18:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:18:47,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-23 10:18:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-23 10:18:47,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538143410] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-23 10:18:47,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-23 10:18:47,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-01-23 10:18:47,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128526219] [2025-01-23 10:18:47,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-23 10:18:47,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-23 10:18:47,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:18:47,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-23 10:18:47,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-23 10:18:47,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:18:47,047 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:18:47,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 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 10:18:47,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:47,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:18:47,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 10:18:47,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:47,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:18:51,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:18:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-23 10:18:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:18:51,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:18:51,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-23 10:18:51,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-23 10:18:51,207 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:18:51,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:18:51,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1781406429, now seen corresponding path program 2 times [2025-01-23 10:18:51,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:18:51,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540291033] [2025-01-23 10:18:51,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:18:51,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:18:51,217 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 77 statements into 2 equivalence classes. [2025-01-23 10:18:51,461 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 77 statements. [2025-01-23 10:18:51,461 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:18:51,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:19:00,038 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:19:00,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:19:00,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540291033] [2025-01-23 10:19:00,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540291033] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:19:00,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:19:00,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-01-23 10:19:00,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489044677] [2025-01-23 10:19:00,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:19:00,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-23 10:19:00,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:19:00,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-23 10:19:00,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2025-01-23 10:19:00,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:19:00,041 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:19:00,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 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 10:19:00,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:00,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:19:00,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-01-23 10:19:00,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:00,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:19:00,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:19:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:19:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:19:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:19:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-23 10:19:08,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-01-23 10:19:08,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:19:08,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:19:08,461 INFO L85 PathProgramCache]: Analyzing trace with hash -220044025, now seen corresponding path program 1 times [2025-01-23 10:19:08,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:19:08,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030900495] [2025-01-23 10:19:08,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:19:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:19:08,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-23 10:19:08,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-23 10:19:08,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:19:08,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:19:08,548 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:19:08,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:19:08,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030900495] [2025-01-23 10:19:08,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030900495] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:19:08,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:19:08,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-23 10:19:08,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974409369] [2025-01-23 10:19:08,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:19:08,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-23 10:19:08,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:19:08,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-23 10:19:08,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-23 10:19:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:19:08,550 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:19:08,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 10:19:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:19:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:19:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:19:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-01-23 10:19:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:19:31,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:19:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:19:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:19:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-23 10:19:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:19:31,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-01-23 10:19:31,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:19:31,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:19:31,556 INFO L85 PathProgramCache]: Analyzing trace with hash 570800664, now seen corresponding path program 1 times [2025-01-23 10:19:31,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:19:31,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785245719] [2025-01-23 10:19:31,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:19:31,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:19:31,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-23 10:19:31,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-23 10:19:31,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:19:31,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:19:31,672 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:19:31,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:19:31,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785245719] [2025-01-23 10:19:31,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785245719] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:19:31,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:19:31,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 10:19:31,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273950308] [2025-01-23 10:19:31,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:19:31,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 10:19:31,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:19:31,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 10:19:31,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-23 10:19:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:19:31,674 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:19:31,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 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 10:19:31,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:31,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:19:31,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:19:31,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:31,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:19:31,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-23 10:19:31,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:19:31,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:19:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:19:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:19:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:19:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:19:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-23 10:19:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:19:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:19:41,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-01-23 10:19:41,181 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:19:41,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:19:41,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1202165977, now seen corresponding path program 1 times [2025-01-23 10:19:41,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:19:41,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477689089] [2025-01-23 10:19:41,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:19:41,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:19:41,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-23 10:19:41,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-23 10:19:41,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:19:41,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:20:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:20:02,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:20:02,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477689089] [2025-01-23 10:20:02,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477689089] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:20:02,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:20:02,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-01-23 10:20:02,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756860322] [2025-01-23 10:20:02,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:20:02,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-23 10:20:02,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:20:02,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-23 10:20:02,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2025-01-23 10:20:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:20:02,303 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:20:02,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 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 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:20:02,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:20:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:20:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:20:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:20:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:20:17,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:20:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-23 10:20:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:20:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:20:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-23 10:20:17,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-01-23 10:20:17,383 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:20:17,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:20:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1127784565, now seen corresponding path program 2 times [2025-01-23 10:20:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:20:17,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136749667] [2025-01-23 10:20:17,383 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:20:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:20:17,394 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 77 statements into 2 equivalence classes. [2025-01-23 10:20:17,478 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 67 of 77 statements. [2025-01-23 10:20:17,479 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:20:17,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:21:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:21:58,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:21:58,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136749667] [2025-01-23 10:21:58,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136749667] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:21:58,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:21:58,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-01-23 10:21:58,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819763886] [2025-01-23 10:21:58,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:21:58,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-23 10:21:58,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:21:58,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-23 10:21:58,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2025-01-23 10:21:58,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:21:58,325 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:21:58,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 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 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-01-23 10:21:58,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:22:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:22:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:22:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:22:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:22:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:22:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:22:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:22:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:22:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:22:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:22:31,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-01-23 10:22:31,549 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:22:31,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:22:31,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1516544372, now seen corresponding path program 1 times [2025-01-23 10:22:31,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:22:31,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610704508] [2025-01-23 10:22:31,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:22:31,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:22:31,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-23 10:22:31,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-23 10:22:31,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:22:31,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:22:50,701 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:22:50,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:22:50,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610704508] [2025-01-23 10:22:50,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610704508] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:22:50,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:22:50,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-01-23 10:22:50,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822664238] [2025-01-23 10:22:50,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:22:50,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-23 10:22:50,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:22:50,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-23 10:22:50,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2025-01-23 10:22:50,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:22:50,704 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:22:50,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-23 10:22:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:22:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:22:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:22:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:22:50,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:22:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:22:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:22:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:22:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:22:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:22:50,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:23:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:23:11,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-01-23 10:23:11,432 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:23:11,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:23:11,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1058280621, now seen corresponding path program 3 times [2025-01-23 10:23:11,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:23:11,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240568146] [2025-01-23 10:23:11,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-23 10:23:11,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:23:11,445 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 86 statements into 6 equivalence classes. [2025-01-23 10:23:11,500 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 76 of 86 statements. [2025-01-23 10:23:11,500 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-23 10:23:11,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:23:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:23:20,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:23:20,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240568146] [2025-01-23 10:23:20,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240568146] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:23:20,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:23:20,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2025-01-23 10:23:20,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365974294] [2025-01-23 10:23:20,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:23:20,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-23 10:23:20,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:23:20,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-23 10:23:20,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2025-01-23 10:23:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:23:20,644 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:23:20,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.08) internal successors, (77), 24 states have internal predecessors, (77), 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 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:23:20,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:23:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:23:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 10:23:48,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-01-23 10:23:48,227 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:23:48,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:23:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 731057014, now seen corresponding path program 2 times [2025-01-23 10:23:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:23:48,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762612352] [2025-01-23 10:23:48,228 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-23 10:23:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:23:48,242 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-01-23 10:23:48,247 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 85 of 95 statements. [2025-01-23 10:23:48,247 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-23 10:23:48,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:23:48,346 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:23:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:23:48,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762612352] [2025-01-23 10:23:48,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762612352] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:23:48,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:23:48,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-23 10:23:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961997686] [2025-01-23 10:23:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:23:48,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-23 10:23:48,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:23:48,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-23 10:23:48,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-23 10:23:48,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:23:48,347 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:23:48,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 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 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-01-23 10:23:48,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:24:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-01-23 10:24:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:24:06,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-01-23 10:24:06,415 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-23 10:24:06,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-23 10:24:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash -657502026, now seen corresponding path program 1 times [2025-01-23 10:24:06,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-23 10:24:06,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120033478] [2025-01-23 10:24:06,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-23 10:24:06,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-23 10:24:06,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-23 10:24:06,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-23 10:24:06,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-23 10:24:06,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-23 10:24:14,068 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-01-23 10:24:14,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-23 10:24:14,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120033478] [2025-01-23 10:24:14,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120033478] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-23 10:24:14,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-23 10:24:14,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-01-23 10:24:14,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333063345] [2025-01-23 10:24:14,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-23 10:24:14,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-23 10:24:14,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-23 10:24:14,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-23 10:24:14,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2025-01-23 10:24:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-23 10:24:14,071 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-01-23 10:24:14,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 23 states have internal predecessors, (77), 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 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-01-23 10:24:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2025-01-23 10:24:14,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-01-23 10:24:14,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-01-23 10:24:14,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-01-23 10:24:14,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.