./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1f73d82f 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 ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.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 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 10:29:12,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 10:29:12,213 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-21 10:29:12,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 10:29:12,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 10:29:12,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 10:29:12,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 10:29:12,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 10:29:12,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 10:29:12,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 10:29:12,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 10:29:12,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 10:29:12,256 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 10:29:12,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 10:29:12,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 10:29:12,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 10:29:12,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 10:29:12,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 10:29:12,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 10:29:12,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 10:29:12,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 10:29:12,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 10:29:12,259 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 10:29:12,259 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 -> 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 [2024-11-21 10:29:12,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 10:29:12,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 10:29:12,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 10:29:12,538 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 10:29:12,538 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 10:29:12,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-21 10:29:13,882 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8d84f7d90/ec326491ffec452c831edd27ffb40bd6/FLAGab68a8360 [2024-11-21 10:29:14,109 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 10:29:14,110 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-21 10:29:14,124 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8d84f7d90/ec326491ffec452c831edd27ffb40bd6/FLAGab68a8360 [2024-11-21 10:29:14,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/8d84f7d90/ec326491ffec452c831edd27ffb40bd6 [2024-11-21 10:29:14,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 10:29:14,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 10:29:14,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 10:29:14,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 10:29:14,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 10:29:14,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ee5150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14, skipping insertion in model container [2024-11-21 10:29:14,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 10:29:14,477 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i[30869,30882] [2024-11-21 10:29:14,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 10:29:14,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 10:29:14,530 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i[30869,30882] [2024-11-21 10:29:14,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 10:29:14,566 INFO L204 MainTranslator]: Completed translation [2024-11-21 10:29:14,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14 WrapperNode [2024-11-21 10:29:14,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 10:29:14,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 10:29:14,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 10:29:14,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 10:29:14,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,614 INFO L138 Inliner]: procedures = 172, calls = 36, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 164 [2024-11-21 10:29:14,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 10:29:14,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 10:29:14,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 10:29:14,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 10:29:14,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,644 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 10:29:14,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 10:29:14,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 10:29:14,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 10:29:14,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (1/1) ... [2024-11-21 10:29:14,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 10:29:14,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:29:14,694 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) [2024-11-21 10:29:14,698 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 [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-21 10:29:14,719 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-21 10:29:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 10:29:14,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 10:29:14,721 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 10:29:14,849 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 10:29:14,850 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 10:29:15,071 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 10:29:15,072 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 10:29:15,397 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 10:29:15,397 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 10:29:15,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:29:15 BoogieIcfgContainer [2024-11-21 10:29:15,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 10:29:15,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 10:29:15,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 10:29:15,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 10:29:15,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:29:14" (1/3) ... [2024-11-21 10:29:15,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3eeefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:29:15, skipping insertion in model container [2024-11-21 10:29:15,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:14" (2/3) ... [2024-11-21 10:29:15,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3eeefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:29:15, skipping insertion in model container [2024-11-21 10:29:15,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:29:15" (3/3) ... [2024-11-21 10:29:15,409 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2024-11-21 10:29:15,421 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 10:29:15,423 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur.i that has 2 procedures, 19 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-21 10:29:15,423 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 10:29:15,466 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 10:29:15,510 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:15,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 10:29:15,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:29:15,513 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) [2024-11-21 10:29:15,514 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 [2024-11-21 10:29:15,577 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:29:15,591 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-11-21 10:29:15,599 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;@69ad7b9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:15,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:29:15,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:15,882 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:15,882 INFO L139 ounterexampleChecker]: Examining path program with hash -223858123, occurence #1 [2024-11-21 10:29:15,882 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:15,882 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:15,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:15,887 INFO L85 PathProgramCache]: Analyzing trace with hash 667183354, now seen corresponding path program 1 times [2024-11-21 10:29:15,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:15,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097666791] [2024-11-21 10:29:15,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:15,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:16,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:16,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097666791] [2024-11-21 10:29:16,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097666791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:16,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:16,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 10:29:16,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278039682] [2024-11-21 10:29:16,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:16,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 10:29:16,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:16,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 10:29:16,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 10:29:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:16,652 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:16,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-21 10:29:16,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:16,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:16,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 10:29:16,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:16,697 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:16,697 INFO L139 ounterexampleChecker]: Examining path program with hash -1880979063, occurence #1 [2024-11-21 10:29:16,697 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:16,697 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:16,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:16,698 INFO L85 PathProgramCache]: Analyzing trace with hash 755695602, now seen corresponding path program 1 times [2024-11-21 10:29:16,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:16,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218954314] [2024-11-21 10:29:16,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:17,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218954314] [2024-11-21 10:29:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218954314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:17,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-21 10:29:17,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356099624] [2024-11-21 10:29:17,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:17,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-21 10:29:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:17,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-21 10:29:17,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-21 10:29:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:17,696 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:17,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2024-11-21 10:29:17,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:17,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:18,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:18,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-21 10:29:18,455 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 10:29:18,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 10:29:18,459 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-21 10:29:18,461 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2024-11-21 10:29:18,465 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:18,467 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:29:18,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 10:29:18,468 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;@69ad7b9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:18,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:29:18,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:29:18,479 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:18,479 INFO L139 ounterexampleChecker]: Examining path program with hash -741287019, occurence #1 [2024-11-21 10:29:18,479 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:18,479 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:18,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1366767723, now seen corresponding path program 1 times [2024-11-21 10:29:18,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:18,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054293208] [2024-11-21 10:29:18,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:18,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:29:18,756 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 10:29:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:29:18,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 10:29:18,803 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 10:29:18,803 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-11-21 10:29:18,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 10:29:18,804 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-21 10:29:18,806 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2024-11-21 10:29:18,806 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 10:29:18,807 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-21 10:29:18,829 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 10:29:18,831 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:18,843 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:29:18,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 10:29:18,844 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;@69ad7b9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:18,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:29:19,645 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:29:19,645 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:19,645 INFO L139 ounterexampleChecker]: Examining path program with hash -1614996547, occurence #1 [2024-11-21 10:29:19,645 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:19,645 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:19,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1529935523, now seen corresponding path program 1 times [2024-11-21 10:29:19,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:19,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788367177] [2024-11-21 10:29:19,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:19,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:19,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:19,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788367177] [2024-11-21 10:29:19,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788367177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:19,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:19,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 10:29:19,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137125724] [2024-11-21 10:29:19,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:19,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 10:29:19,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:19,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 10:29:19,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 10:29:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:19,907 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:19,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) 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) [2024-11-21 10:29:19,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:20,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 10:29:20,182 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:29:20,182 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:20,182 INFO L139 ounterexampleChecker]: Examining path program with hash -562998107, occurence #1 [2024-11-21 10:29:20,182 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:20,182 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:20,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:20,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2098272829, now seen corresponding path program 1 times [2024-11-21 10:29:20,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:20,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215598609] [2024-11-21 10:29:20,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:20,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:20,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:20,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215598609] [2024-11-21 10:29:20,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215598609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:20,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:20,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-21 10:29:20,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719546262] [2024-11-21 10:29:20,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:20,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-21 10:29:20,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:20,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-21 10:29:20,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-21 10:29:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:20,824 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:20,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 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) [2024-11-21 10:29:20,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:20,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-21 10:29:21,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 10:29:21,217 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:29:21,217 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:21,217 INFO L139 ounterexampleChecker]: Examining path program with hash -1574396011, occurence #1 [2024-11-21 10:29:21,217 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:21,217 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:21,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2126901980, now seen corresponding path program 1 times [2024-11-21 10:29:21,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:21,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632121005] [2024-11-21 10:29:21,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:21,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:29:21,464 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 10:29:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:29:21,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-21 10:29:21,523 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 10:29:21,523 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-11-21 10:29:21,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 10:29:21,525 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-21 10:29:21,526 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2024-11-21 10:29:21,526 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 10:29:21,526 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-21 10:29:21,557 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 10:29:21,559 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:21,581 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:29:21,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-11-21 10:29:21,582 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;@69ad7b9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:29:21,582 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:29:23,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:23,181 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:23,181 INFO L139 ounterexampleChecker]: Examining path program with hash -1584199468, occurence #1 [2024-11-21 10:29:23,181 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:23,181 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:23,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:23,181 INFO L85 PathProgramCache]: Analyzing trace with hash 116218199, now seen corresponding path program 1 times [2024-11-21 10:29:23,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:23,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851931053] [2024-11-21 10:29:23,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:23,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:23,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:23,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:23,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851931053] [2024-11-21 10:29:23,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851931053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:23,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:23,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 10:29:23,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793037694] [2024-11-21 10:29:23,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:23,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 10:29:23,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:23,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 10:29:23,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 10:29:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:23,370 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:23,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-21 10:29:23,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:23,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:23,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 10:29:23,966 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:23,966 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:23,966 INFO L139 ounterexampleChecker]: Examining path program with hash 93451192, occurence #1 [2024-11-21 10:29:23,966 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:23,966 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:23,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:23,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1682586524, now seen corresponding path program 1 times [2024-11-21 10:29:23,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:23,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366606232] [2024-11-21 10:29:23,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:23,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:24,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:24,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366606232] [2024-11-21 10:29:24,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366606232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:24,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:24,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-21 10:29:24,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370527514] [2024-11-21 10:29:24,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:24,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-21 10:29:24,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:24,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-21 10:29:24,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-21 10:29:24,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:24,655 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:24,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 10:29:24,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:24,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:25,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 10:29:25,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:25,586 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:25,586 INFO L139 ounterexampleChecker]: Examining path program with hash -1029169139, occurence #1 [2024-11-21 10:29:25,586 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:25,587 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:25,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:25,587 INFO L85 PathProgramCache]: Analyzing trace with hash -530651333, now seen corresponding path program 1 times [2024-11-21 10:29:25,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:25,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528462160] [2024-11-21 10:29:25,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:25,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:26,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528462160] [2024-11-21 10:29:26,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528462160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:26,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:26,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-21 10:29:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530002606] [2024-11-21 10:29:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:26,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-21 10:29:26,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:26,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-21 10:29:26,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-21 10:29:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:26,665 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:26,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 14 states have internal predecessors, (55), 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) [2024-11-21 10:29:26,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:26,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:26,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:27,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:27,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:27,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:27,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 10:29:27,614 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:27,614 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:27,615 INFO L139 ounterexampleChecker]: Examining path program with hash -482009593, occurence #1 [2024-11-21 10:29:27,615 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:27,615 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:27,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash -167488697, now seen corresponding path program 1 times [2024-11-21 10:29:27,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:27,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890863388] [2024-11-21 10:29:27,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:27,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:29,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:29,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890863388] [2024-11-21 10:29:29,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890863388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:29,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:29,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-21 10:29:29,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374023557] [2024-11-21 10:29:29,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:29,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-21 10:29:29,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:29,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-21 10:29:29,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2024-11-21 10:29:29,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:29,901 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:29,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.230769230769231) internal successors, (58), 26 states have internal predecessors, (58), 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) [2024-11-21 10:29:29,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:29,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:29,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:29,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:31,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-21 10:29:31,700 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:31,700 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:31,700 INFO L139 ounterexampleChecker]: Examining path program with hash 1130584083, occurence #1 [2024-11-21 10:29:31,701 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:31,701 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:31,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:31,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1964440056, now seen corresponding path program 1 times [2024-11-21 10:29:31,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:31,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012860212] [2024-11-21 10:29:31,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:31,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:33,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:33,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012860212] [2024-11-21 10:29:33,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012860212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:33,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:33,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-21 10:29:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794375744] [2024-11-21 10:29:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:33,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-21 10:29:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:33,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-21 10:29:33,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-21 10:29:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:33,430 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:33,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 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) [2024-11-21 10:29:33,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:33,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:33,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:33,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:33,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:34,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 10:29:34,619 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:34,619 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:34,619 INFO L139 ounterexampleChecker]: Examining path program with hash -2020076879, occurence #1 [2024-11-21 10:29:34,619 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:34,619 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:34,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:34,619 INFO L85 PathProgramCache]: Analyzing trace with hash 838630330, now seen corresponding path program 1 times [2024-11-21 10:29:34,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:34,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666615593] [2024-11-21 10:29:34,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:34,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:36,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:36,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666615593] [2024-11-21 10:29:36,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666615593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:36,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:36,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2024-11-21 10:29:36,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610033800] [2024-11-21 10:29:36,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:36,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-21 10:29:36,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:36,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-21 10:29:36,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=937, Unknown=0, NotChecked=0, Total=1056 [2024-11-21 10:29:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:36,962 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:36,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.65625) internal successors, (85), 32 states have internal predecessors, (85), 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) [2024-11-21 10:29:36,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:36,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:36,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:36,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:36,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:36,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:39,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:39,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-21 10:29:39,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-21 10:29:39,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:39,427 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:39,428 INFO L139 ounterexampleChecker]: Examining path program with hash 1333706408, occurence #1 [2024-11-21 10:29:39,428 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:39,428 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:39,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:39,429 INFO L85 PathProgramCache]: Analyzing trace with hash 901122405, now seen corresponding path program 2 times [2024-11-21 10:29:39,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:39,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637058757] [2024-11-21 10:29:39,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:39,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-21 10:29:40,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637058757] [2024-11-21 10:29:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637058757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:29:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:29:40,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-21 10:29:40,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598791364] [2024-11-21 10:29:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:29:40,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-21 10:29:40,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 10:29:40,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-21 10:29:40,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-11-21 10:29:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:40,910 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:29:40,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.739130434782609) internal successors, (86), 22 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) [2024-11-21 10:29:40,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:40,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:40,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:40,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:40,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:40,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2024-11-21 10:29:40,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:29:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:29:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-21 10:29:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:42,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-21 10:29:42,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-21 10:29:42,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-21 10:29:42,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:29:42,163 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:29:42,163 INFO L139 ounterexampleChecker]: Examining path program with hash -1831680657, occurence #1 [2024-11-21 10:29:42,163 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:29:42,163 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:29:42,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:29:42,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1764710056, now seen corresponding path program 1 times [2024-11-21 10:29:42,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 10:29:42,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414575127] [2024-11-21 10:29:42,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:42,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 10:29:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:29:43,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 10:29:43,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414575127] [2024-11-21 10:29:43,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414575127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 10:29:43,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055492058] [2024-11-21 10:29:43,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:29:43,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:29:43,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:29:43,768 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) [2024-11-21 10:29:43,769 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 [2024-11-21 10:29:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:29:44,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-21 10:29:44,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:29:44,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:29:44,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:29:44,629 INFO L349 Elim1Store]: treesize reduction 55, result has 24.7 percent of original size [2024-11-21 10:29:44,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2024-11-21 10:29:44,656 INFO L349 Elim1Store]: treesize reduction 27, result has 51.8 percent of original size [2024-11-21 10:29:44,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 52 [2024-11-21 10:29:44,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-21 10:29:44,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-21 10:29:44,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-11-21 10:29:44,763 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-21 10:29:44,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2024-11-21 10:29:45,204 INFO L349 Elim1Store]: treesize reduction 48, result has 66.0 percent of original size [2024-11-21 10:29:45,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 129 [2024-11-21 10:29:52,011 INFO L349 Elim1Store]: treesize reduction 3132, result has 14.1 percent of original size [2024-11-21 10:29:52,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 28 select indices, 28 select index equivalence classes, 0 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 405 case distinctions, treesize of input 367 treesize of output 708 [2024-11-21 10:30:26,057 WARN L286 SmtUtils]: Spent 12.06s on a formula simplification. DAG size of input: 1609 DAG size of output: 1481 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-21 10:30:26,058 INFO L349 Elim1Store]: treesize reduction 775, result has 79.2 percent of original size [2024-11-21 10:30:26,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 26 select indices, 26 select index equivalence classes, 2 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 350 case distinctions, treesize of input 407 treesize of output 3169 [2024-11-21 10:38:01,712 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-21 10:38:01,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-21 10:38:01,714 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-21 10:38:01,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 10:38:01,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-21 10:38:01,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-21 10:38:01,928 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:584) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:274) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:194) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:318) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 76 more [2024-11-21 10:38:01,934 INFO L158 Benchmark]: Toolchain (without parser) took 527787.42ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 90.8MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-21 10:38:01,934 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 10:38:01,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.28ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 70.4MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-21 10:38:01,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.84ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 10:38:01,935 INFO L158 Benchmark]: Boogie Preprocessor took 39.13ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 67.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 10:38:01,935 INFO L158 Benchmark]: RCFGBuilder took 739.41ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 71.4MB in the end (delta: -4.5MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2024-11-21 10:38:01,935 INFO L158 Benchmark]: TraceAbstraction took 526532.44ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 70.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-21 10:38:01,937 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.28ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 70.4MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.84ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 68.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.13ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 67.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 739.41ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 71.4MB in the end (delta: -4.5MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * TraceAbstraction took 526532.44ms. Allocated memory was 117.4MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 70.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 476, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 80, dependent conditional: 68, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 408, independent: 396, independent conditional: 0, independent unconditional: 396, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 0, independent unconditional: 396, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 186, independent: 174, independent conditional: 0, independent unconditional: 174, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 186, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 573, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 386, dependent conditional: 0, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 408, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 186, unknown conditional: 0, unknown unconditional: 186] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 174, Positive conditional cache size: 0, Positive unconditional cache size: 174, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 131, Maximal queried relation: 0, Independence queries for same thread: 68, Persistent sets #1 benchmarks: Persistent set computation time: 0.6s, Number of persistent set computation: 52, Number of trivial persistent sets: 50, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 277, independent: 265, independent conditional: 0, independent unconditional: 265, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 476, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 80, dependent conditional: 68, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 131, independent unconditional: 265, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 408, independent: 396, independent conditional: 0, independent unconditional: 396, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 408, independent: 396, independent conditional: 0, independent unconditional: 396, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 186, independent: 174, independent conditional: 0, independent unconditional: 174, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 186, independent: 168, independent conditional: 0, independent unconditional: 168, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 573, independent: 188, independent conditional: 0, independent unconditional: 188, dependent: 386, dependent conditional: 0, dependent unconditional: 386, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 408, independent: 222, independent conditional: 0, independent unconditional: 222, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 186, unknown conditional: 0, unknown unconditional: 186] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 174, Positive conditional cache size: 0, Positive unconditional cache size: 174, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 131, Maximal queried relation: 0, Independence queries for same thread: 68 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 178, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 11, dependent conditional: 8, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 170, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 170, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 174, Positive conditional cache size: 0, Positive unconditional cache size: 174, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 16, Maximal queried relation: 0, Independence queries for same thread: 8, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 10, Number of trivial persistent sets: 8, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 154, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 178, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 11, dependent conditional: 8, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 16, independent unconditional: 151, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 170, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 170, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 170, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 174, Positive conditional cache size: 0, Positive unconditional cache size: 174, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 16, Maximal queried relation: 0, Independence queries for same thread: 8 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 863, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 92, dependent conditional: 65, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 801, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 30, dependent conditional: 3, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 801, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 30, dependent conditional: 3, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 803, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 32, dependent conditional: 5, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 803, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 32, dependent conditional: 1, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 803, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 32, dependent conditional: 1, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 444, independent: 416, independent conditional: 0, independent unconditional: 416, dependent: 28, dependent conditional: 1, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 444, independent: 407, independent conditional: 0, independent unconditional: 407, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 37, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 28, dependent conditional: 1, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 28, dependent conditional: 1, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1193, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 884, dependent conditional: 49, dependent unconditional: 835, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 803, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 444, unknown conditional: 1, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 630, Positive cache size: 590, Positive conditional cache size: 0, Positive unconditional cache size: 590, Negative cache size: 40, Negative conditional cache size: 1, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 210, Maximal queried relation: 1, Independence queries for same thread: 62, Persistent sets #1 benchmarks: Persistent set computation time: 1.2s, Number of persistent set computation: 30, Number of trivial persistent sets: 24, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 592, independent: 565, independent conditional: 0, independent unconditional: 565, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 863, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 92, dependent conditional: 65, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 801, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 30, dependent conditional: 3, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 801, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 30, dependent conditional: 3, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 803, independent: 771, independent conditional: 206, independent unconditional: 565, dependent: 32, dependent conditional: 5, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 803, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 32, dependent conditional: 1, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 803, independent: 771, independent conditional: 0, independent unconditional: 771, dependent: 32, dependent conditional: 1, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 444, independent: 416, independent conditional: 0, independent unconditional: 416, dependent: 28, dependent conditional: 1, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 444, independent: 407, independent conditional: 0, independent unconditional: 407, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 37, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 28, dependent conditional: 1, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 37, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 28, dependent conditional: 1, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1193, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 884, dependent conditional: 49, dependent unconditional: 835, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 803, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 444, unknown conditional: 1, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 630, Positive cache size: 590, Positive conditional cache size: 0, Positive unconditional cache size: 590, Negative cache size: 40, Negative conditional cache size: 1, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 210, Maximal queried relation: 1, Independence queries for same thread: 62 - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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 ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.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 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 10:38:03,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 10:38:04,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-21 10:38:04,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 10:38:04,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 10:38:04,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 10:38:04,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 10:38:04,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 10:38:04,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 10:38:04,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 10:38:04,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 10:38:04,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 10:38:04,096 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 10:38:04,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 10:38:04,097 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-21 10:38:04,098 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-21 10:38:04,098 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 10:38:04,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 10:38:04,098 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 10:38:04,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 10:38:04,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 10:38:04,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 10:38:04,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 10:38:04,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-21 10:38:04,099 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 10:38:04,100 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-21 10:38:04,100 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 10:38:04,100 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 10:38:04,100 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 10:38:04,100 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 10:38:04,100 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 -> 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 [2024-11-21 10:38:04,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 10:38:04,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 10:38:04,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 10:38:04,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 10:38:04,380 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 10:38:04,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-21 10:38:05,690 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/92636b14b/62081aad1cde4b4d8a982369de4fb91a/FLAG7e25ad777 [2024-11-21 10:38:06,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 10:38:06,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-21 10:38:06,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/92636b14b/62081aad1cde4b4d8a982369de4fb91a/FLAG7e25ad777 [2024-11-21 10:38:06,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/92636b14b/62081aad1cde4b4d8a982369de4fb91a [2024-11-21 10:38:06,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 10:38:06,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 10:38:06,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 10:38:06,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 10:38:06,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 10:38:06,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b644304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06, skipping insertion in model container [2024-11-21 10:38:06,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,310 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 10:38:06,577 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i[30869,30882] [2024-11-21 10:38:06,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 10:38:06,596 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 10:38:06,646 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i[30869,30882] [2024-11-21 10:38:06,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 10:38:06,689 INFO L204 MainTranslator]: Completed translation [2024-11-21 10:38:06,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06 WrapperNode [2024-11-21 10:38:06,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 10:38:06,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 10:38:06,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 10:38:06,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 10:38:06,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,745 INFO L138 Inliner]: procedures = 176, calls = 36, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 165 [2024-11-21 10:38:06,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 10:38:06,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 10:38:06,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 10:38:06,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 10:38:06,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,774 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 10:38:06,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 10:38:06,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 10:38:06,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 10:38:06,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (1/1) ... [2024-11-21 10:38:06,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 10:38:06,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:06,821 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) [2024-11-21 10:38:06,828 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 [2024-11-21 10:38:06,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-21 10:38:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-21 10:38:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-21 10:38:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-21 10:38:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 10:38:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 10:38:06,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 10:38:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-21 10:38:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-21 10:38:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-21 10:38:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-21 10:38:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 10:38:06,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 10:38:06,848 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 10:38:06,971 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 10:38:06,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 10:38:07,210 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 10:38:07,211 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 10:38:07,572 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 10:38:07,572 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 10:38:07,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:38:07 BoogieIcfgContainer [2024-11-21 10:38:07,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 10:38:07,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 10:38:07,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 10:38:07,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 10:38:07,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:38:06" (1/3) ... [2024-11-21 10:38:07,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545841ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:38:07, skipping insertion in model container [2024-11-21 10:38:07,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:38:06" (2/3) ... [2024-11-21 10:38:07,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545841ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:38:07, skipping insertion in model container [2024-11-21 10:38:07,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:38:07" (3/3) ... [2024-11-21 10:38:07,585 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2024-11-21 10:38:07,598 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 10:38:07,599 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur.i that has 2 procedures, 19 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-21 10:38:07,599 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 10:38:07,647 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 10:38:07,689 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:07,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 10:38:07,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:07,692 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) [2024-11-21 10:38:07,694 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 [2024-11-21 10:38:07,778 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:38:07,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2024-11-21 10:38:07,800 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;@413b377f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:07,800 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:38:08,199 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:38:08,200 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:08,200 INFO L139 ounterexampleChecker]: Examining path program with hash 1801335627, occurence #1 [2024-11-21 10:38:08,200 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:38:08,200 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:08,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1340349114, now seen corresponding path program 1 times [2024-11-21 10:38:08,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:08,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426048267] [2024-11-21 10:38:08,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:08,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:08,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:08,221 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) [2024-11-21 10:38:08,224 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 [2024-11-21 10:38:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:38:08,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-21 10:38:08,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:38:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:38:08,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:38:08,724 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:38:08,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426048267] [2024-11-21 10:38:08,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426048267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:38:08,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:38:08,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 10:38:08,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558041759] [2024-11-21 10:38:08,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:38:08,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 10:38:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:38:08,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 10:38:08,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 10:38:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:08,748 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:38:08,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-21 10:38:08,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:09,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 10:38:09,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:09,324 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:38:09,324 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:09,324 INFO L139 ounterexampleChecker]: Examining path program with hash 279373450, occurence #1 [2024-11-21 10:38:09,324 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:38:09,324 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:09,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1834548724, now seen corresponding path program 1 times [2024-11-21 10:38:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:09,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916377597] [2024-11-21 10:38:09,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:09,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:09,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:09,328 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) [2024-11-21 10:38:09,329 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 [2024-11-21 10:38:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:38:09,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-21 10:38:09,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:38:09,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:38:10,027 INFO L349 Elim1Store]: treesize reduction 70, result has 17.6 percent of original size [2024-11-21 10:38:10,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 25 [2024-11-21 10:38:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:38:10,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:38:10,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:38:10,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916377597] [2024-11-21 10:38:10,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916377597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:38:10,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:38:10,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-21 10:38:10,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32968331] [2024-11-21 10:38:10,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:38:10,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-21 10:38:10,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:38:10,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-21 10:38:10,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-21 10:38:10,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:10,143 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:38:10,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 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) [2024-11-21 10:38:10,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:10,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:11,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:11,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:38:11,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-21 10:38:11,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:11,776 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:38:11,776 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:11,776 INFO L139 ounterexampleChecker]: Examining path program with hash 702272182, occurence #1 [2024-11-21 10:38:11,776 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:38:11,776 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:11,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:11,777 INFO L85 PathProgramCache]: Analyzing trace with hash 144247071, now seen corresponding path program 1 times [2024-11-21 10:38:11,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:11,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769566745] [2024-11-21 10:38:11,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:11,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:11,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:11,779 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) [2024-11-21 10:38:11,780 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 [2024-11-21 10:38:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:38:12,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-21 10:38:12,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:38:12,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:38:12,454 INFO L349 Elim1Store]: treesize reduction 58, result has 31.8 percent of original size [2024-11-21 10:38:12,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 37 [2024-11-21 10:38:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:38:12,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 10:38:12,655 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse2 |c_~#top~0.offset|)))) (and (or .cse0 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_1) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or (not .cse0) (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (_ bv0 32) (select (select (let ((.cse1 (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_#t~mem8#1|)))) (store .cse1 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse1 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|)))))))) is different from false [2024-11-21 10:38:12,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:38:12,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 57 [2024-11-21 10:38:12,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:38:12,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2024-11-21 10:38:13,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2024-11-21 10:38:13,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-21 10:38:13,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2024-11-21 10:38:13,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:38:13,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 54 [2024-11-21 10:38:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-21 10:38:13,334 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:38:13,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769566745] [2024-11-21 10:38:13,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769566745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 10:38:13,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 10:38:13,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 13 [2024-11-21 10:38:13,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015262978] [2024-11-21 10:38:13,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-21 10:38:13,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-21 10:38:13,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:38:13,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-21 10:38:13,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=145, Unknown=2, NotChecked=24, Total=210 [2024-11-21 10:38:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:13,338 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:38:13,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 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) [2024-11-21 10:38:13,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:13,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:38:13,338 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:15,114 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse1 (select (select |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.offset|)) (.cse2 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse4 |c_~#top~0.offset|)))) (and (= (_ bv0 32) |c_~#top~0.offset|) (forall ((|~#top~0.base| (_ BitVec 32)) (|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |~#top~0.base| (store (select |c_#memory_int| |~#top~0.base|) |c_~#top~0.offset| .cse1)))) (store .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32)))) (= (_ bv3 32) c_~next_alloc_idx~0) (or (not .cse2) (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse3 (store |c_#memory_int| |c_~#top~0.base| (store .cse4 |c_~#top~0.offset| .cse1)))) (store .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or .cse2 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_1) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32)))))))) is different from false [2024-11-21 10:38:15,131 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse2 |c_~#top~0.offset|)))) (and (= (_ bv0 32) |c_~#top~0.offset|) (= (_ bv3 32) c_~next_alloc_idx~0) (or .cse0 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_1) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or (not .cse0) (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (_ bv0 32) (select (select (let ((.cse1 (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_#t~mem8#1|)))) (store .cse1 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse1 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|)))))))) is different from false [2024-11-21 10:38:15,958 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse6 (select .cse4 |c_~#top~0.offset|))) (let ((.cse5 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| .cse6))) (let ((.cse1 (select (select |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.offset|)) (.cse2 (not .cse5))) (and (not (bvsgt (bvadd (_ bv1 32) c_~next_alloc_idx~0) (_ bv65 32))) (forall ((|~#top~0.base| (_ BitVec 32)) (|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |~#top~0.base| (store (select |c_#memory_int| |~#top~0.base|) |c_~#top~0.offset| .cse1)))) (store .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32)))) (or .cse2 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse3 (store |c_#memory_int| |c_~#top~0.base| (store .cse4 |c_~#top~0.offset| .cse1)))) (store .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or .cse5 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_1) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (not (= (_ bv0 32) c_~next_alloc_idx~0)) (not (= (_ bv0 32) .cse6)) (or .cse2 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (_ bv0 32) (select (select (let ((.cse7 (store |c_#memory_int| |c_~#top~0.base| (store .cse4 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_#t~mem8#1|)))) (store .cse7 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse7 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|)))))))))) is different from false [2024-11-21 10:38:16,217 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse6 (select .cse4 |c_~#top~0.offset|))) (let ((.cse5 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| .cse6))) (let ((.cse1 (select (select |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.offset|)) (.cse2 (not .cse5))) (and (forall ((|~#top~0.base| (_ BitVec 32)) (|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |~#top~0.base| (store (select |c_#memory_int| |~#top~0.base|) |c_~#top~0.offset| .cse1)))) (store .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32)))) (or .cse2 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse3 (store |c_#memory_int| |c_~#top~0.base| (store .cse4 |c_~#top~0.offset| .cse1)))) (store .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or .cse5 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_1) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (not (= (_ bv0 32) .cse6)) (or .cse2 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (_ bv0 32) (select (select (let ((.cse7 (store |c_#memory_int| |c_~#top~0.base| (store .cse4 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_#t~mem8#1|)))) (store .cse7 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse7 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|)))))))))) is different from false [2024-11-21 10:38:16,405 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse5 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse4 |c_~#top~0.offset|)))) (let ((.cse1 (select (select |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.offset|)) (.cse2 (not .cse5))) (and (forall ((|~#top~0.base| (_ BitVec 32)) (|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |~#top~0.base| (store (select |c_#memory_int| |~#top~0.base|) |c_~#top~0.offset| .cse1)))) (store .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse0 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32)))) (or .cse2 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse3 (store |c_#memory_int| |c_~#top~0.base| (store .cse4 |c_~#top~0.offset| .cse1)))) (store .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse3 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or .cse5 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread1of1ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_1) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or .cse2 (forall ((|thr1Thread1of1ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (_ bv0 32) (select (select (let ((.cse6 (store |c_#memory_int| |c_~#top~0.base| (store .cse4 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_#t~mem8#1|)))) (store .cse6 |thr1Thread1of1ForFork0_push_~#ret~0#1.base| (store (select .cse6 |thr1Thread1of1ForFork0_push_~#ret~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|))))))))) is different from false [2024-11-21 10:38:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:38:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-21 10:38:16,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 10:38:16,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:16,689 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:38:16,689 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:16,690 INFO L139 ounterexampleChecker]: Examining path program with hash 702272182, occurence #2 [2024-11-21 10:38:16,690 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 10:38:16,690 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-21 10:38:16,690 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,690 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-21 10:38:16,691 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-11-21 10:38:16,691 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:38:16,691 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 10:38:16,691 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:16,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:16,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1286181931, now seen corresponding path program 1 times [2024-11-21 10:38:16,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:16,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550602702] [2024-11-21 10:38:16,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:16,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:16,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:16,695 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) [2024-11-21 10:38:16,697 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 [2024-11-21 10:38:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:38:17,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 10:38:17,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:38:17,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2024-11-21 10:38:17,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:38:17,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:38:17,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:38:17,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-21 10:38:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-21 10:38:17,101 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:38:17,101 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:38:17,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550602702] [2024-11-21 10:38:17,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550602702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:38:17,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:38:17,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 10:38:17,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676326664] [2024-11-21 10:38:17,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:38:17,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 10:38:17,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:38:17,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 10:38:17,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-21 10:38:17,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:17,102 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:38:17,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-21 10:38:17,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:17,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:38:17,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-11-21 10:38:17,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:38:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-21 10:38:18,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:38:18,467 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 10:38:18,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 10:38:18,669 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 [2024-11-21 10:38:18,673 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-21 10:38:18,674 INFO L319 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2024-11-21 10:38:18,676 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:18,677 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:38:18,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 10:38:18,678 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;@413b377f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:18,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:38:18,684 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:38:18,684 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:18,684 INFO L139 ounterexampleChecker]: Examining path program with hash -334871684, occurence #1 [2024-11-21 10:38:18,684 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:38:18,684 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:18,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:18,685 INFO L85 PathProgramCache]: Analyzing trace with hash -54908715, now seen corresponding path program 1 times [2024-11-21 10:38:18,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:18,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139980322] [2024-11-21 10:38:18,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:18,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:18,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:18,688 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) [2024-11-21 10:38:18,689 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 [2024-11-21 10:38:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:38:18,963 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 10:38:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:38:25,831 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-21 10:38:25,831 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 10:38:25,831 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-11-21 10:38:25,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-21 10:38:26,032 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 [2024-11-21 10:38:26,033 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-21 10:38:26,033 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2024-11-21 10:38:26,034 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 10:38:26,034 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-21 10:38:26,053 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 10:38:26,055 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:26,066 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:38:26,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 10:38:26,067 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;@413b377f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:26,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:38:27,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:38:27,171 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:27,171 INFO L139 ounterexampleChecker]: Examining path program with hash 559145163, occurence #1 [2024-11-21 10:38:27,171 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:38:27,171 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:27,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:27,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1469246427, now seen corresponding path program 1 times [2024-11-21 10:38:27,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:27,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239250185] [2024-11-21 10:38:27,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:27,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:27,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:27,174 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) [2024-11-21 10:38:27,174 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 [2024-11-21 10:38:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:38:27,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-21 10:38:27,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:38:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:38:27,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:38:27,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:38:27,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239250185] [2024-11-21 10:38:27,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239250185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:38:27,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:38:27,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 10:38:27,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563007847] [2024-11-21 10:38:27,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:38:27,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 10:38:27,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:38:27,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 10:38:27,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 10:38:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:27,416 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:38:27,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) 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) [2024-11-21 10:38:27,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:28,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-21 10:38:28,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:28,265 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:38:28,265 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:28,265 INFO L139 ounterexampleChecker]: Examining path program with hash 497980029, occurence #1 [2024-11-21 10:38:28,265 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:38:28,265 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:28,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:28,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1673461053, now seen corresponding path program 1 times [2024-11-21 10:38:28,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:28,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392893869] [2024-11-21 10:38:28,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:28,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:28,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:28,268 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) [2024-11-21 10:38:28,269 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 [2024-11-21 10:38:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:38:28,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-21 10:38:28,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:38:28,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:38:28,763 INFO L349 Elim1Store]: treesize reduction 70, result has 17.6 percent of original size [2024-11-21 10:38:28,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 25 [2024-11-21 10:38:28,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:38:28,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:38:28,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:38:28,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392893869] [2024-11-21 10:38:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392893869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:38:28,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:38:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-21 10:38:28,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640963430] [2024-11-21 10:38:28,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:38:28,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-21 10:38:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:38:28,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-21 10:38:28,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-21 10:38:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:28,830 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:38:28,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 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) [2024-11-21 10:38:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:28,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:30,287 WARN L331 ript$VariableManager]: TermVariable v_subst_15 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:38:30,287 WARN L331 ript$VariableManager]: TermVariable |thr1Thread1of2ForFork0_push_~#ret~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:38:30,288 WARN L331 ript$VariableManager]: TermVariable v_subst_16 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:38:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:38:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:38:30,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-21 10:38:30,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:30,804 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-21 10:38:30,804 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:38:30,804 INFO L139 ounterexampleChecker]: Examining path program with hash -186049430, occurence #1 [2024-11-21 10:38:30,804 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:38:30,804 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:38:30,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:38:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1702090204, now seen corresponding path program 1 times [2024-11-21 10:38:30,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:38:30,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966167538] [2024-11-21 10:38:30,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:38:30,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:38:30,807 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) [2024-11-21 10:38:30,807 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 [2024-11-21 10:38:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:38:31,089 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-21 10:38:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-21 10:38:57,726 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-21 10:38:57,726 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-21 10:38:57,726 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-11-21 10:38:57,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-21 10:38:57,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:38:57,928 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-21 10:38:57,928 INFO L319 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2024-11-21 10:38:57,928 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-21 10:38:57,928 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-21 10:38:57,951 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-21 10:38:57,953 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:57,969 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 10:38:57,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2024-11-21 10:38:57,970 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;@413b377f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 10:38:57,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 10:39:00,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:00,115 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:00,115 INFO L139 ounterexampleChecker]: Examining path program with hash 1199344695, occurence #1 [2024-11-21 10:39:00,115 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:39:00,115 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:00,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash 138202583, now seen corresponding path program 1 times [2024-11-21 10:39:00,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:00,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556281694] [2024-11-21 10:39:00,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:00,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:00,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:00,123 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) [2024-11-21 10:39:00,125 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 [2024-11-21 10:39:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:00,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-21 10:39:00,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:39:00,424 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:39:00,424 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:39:00,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556281694] [2024-11-21 10:39:00,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556281694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:39:00,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:39:00,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 10:39:00,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936517223] [2024-11-21 10:39:00,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:39:00,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 10:39:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:39:00,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 10:39:00,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 10:39:00,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:00,425 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:39:00,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2024-11-21 10:39:00,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:01,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-21 10:39:01,840 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 [2024-11-21 10:39:01,841 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:01,841 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:01,841 INFO L139 ounterexampleChecker]: Examining path program with hash 541275651, occurence #1 [2024-11-21 10:39:01,841 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:39:01,841 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:01,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:01,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1960828646, now seen corresponding path program 1 times [2024-11-21 10:39:01,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:01,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521531868] [2024-11-21 10:39:01,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:01,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:01,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:01,844 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) [2024-11-21 10:39:01,844 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 [2024-11-21 10:39:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:02,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-21 10:39:02,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:02,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:39:02,431 INFO L349 Elim1Store]: treesize reduction 58, result has 31.8 percent of original size [2024-11-21 10:39:02,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 37 [2024-11-21 10:39:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:39:02,496 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:39:02,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:39:02,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521531868] [2024-11-21 10:39:02,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521531868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:39:02,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:39:02,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-21 10:39:02,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973926366] [2024-11-21 10:39:02,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:39:02,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-21 10:39:02,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:39:02,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-21 10:39:02,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-21 10:39:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:02,498 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:39:02,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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) [2024-11-21 10:39:02,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:02,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:04,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:04,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-21 10:39:04,493 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 [2024-11-21 10:39:04,494 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:04,494 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:04,494 INFO L139 ounterexampleChecker]: Examining path program with hash 1094352512, occurence #1 [2024-11-21 10:39:04,494 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:39:04,494 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:04,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:04,494 INFO L85 PathProgramCache]: Analyzing trace with hash -814102831, now seen corresponding path program 1 times [2024-11-21 10:39:04,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:04,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472083544] [2024-11-21 10:39:04,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:04,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:04,497 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) [2024-11-21 10:39:04,499 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 [2024-11-21 10:39:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:04,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-21 10:39:04,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:05,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:39:05,195 INFO L349 Elim1Store]: treesize reduction 58, result has 31.8 percent of original size [2024-11-21 10:39:05,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 37 [2024-11-21 10:39:05,270 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:39:05,271 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 10:39:05,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:39:05,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 57 [2024-11-21 10:39:05,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:39:05,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2024-11-21 10:39:05,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2024-11-21 10:39:05,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-11-21 10:39:05,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2024-11-21 10:39:05,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:39:05,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 54 [2024-11-21 10:39:05,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:39:05,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 54 [2024-11-21 10:39:06,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 10:39:06,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 54 [2024-11-21 10:39:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:39:06,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:39:06,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472083544] [2024-11-21 10:39:06,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472083544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 10:39:06,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 10:39:06,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2024-11-21 10:39:06,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581158808] [2024-11-21 10:39:06,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-21 10:39:06,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-21 10:39:06,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:39:06,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-21 10:39:06,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=277, Unknown=2, NotChecked=0, Total=342 [2024-11-21 10:39:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:06,271 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:39:06,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 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) [2024-11-21 10:39:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:06,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:12,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-21 10:39:14,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-21 10:39:16,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-21 10:39:16,417 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse3 (select .cse2 |c_~#top~0.offset|))) (let ((.cse0 (= |c_thr1Thread3of3ForFork0_push_~oldTop~0#1| .cse3))) (and (not (bvsgt (bvadd (_ bv5 32) c_~next_alloc_idx~0) (_ bv65 32))) (not (bvsgt (bvadd (_ bv1 32) c_~next_alloc_idx~0) (_ bv65 32))) (not (bvsgt (bvadd (_ bv3 32) c_~next_alloc_idx~0) (_ bv65 32))) (or (not .cse0) (forall ((|thr1Thread3of3ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse1 (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset|))))) (store .cse1 |thr1Thread3of3ForFork0_push_~#ret~0#1.base| (store (select .cse1 |thr1Thread3of3ForFork0_push_~#ret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or .cse0 (forall ((|thr1Thread3of3ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_4 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread3of3ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_4) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (not (= (_ bv0 32) c_~next_alloc_idx~0)) (not (= (_ bv0 32) (bvadd (_ bv2 32) c_~next_alloc_idx~0))) (not (= (_ bv0 32) .cse3)) (not (= (_ bv0 32) (bvadd (_ bv4 32) c_~next_alloc_idx~0))))))) is different from false [2024-11-21 10:39:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-21 10:39:17,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-21 10:39:17,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:17,767 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:17,767 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:17,767 INFO L139 ounterexampleChecker]: Examining path program with hash 1094352512, occurence #2 [2024-11-21 10:39:17,767 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 10:39:17,767 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-11-21 10:39:17,767 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,767 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-21 10:39:17,768 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-11-21 10:39:17,768 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-21 10:39:17,768 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 52 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 72 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 77 [2024-11-21 10:39:17,768 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 10:39:17,768 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 10:39:17,768 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:17,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:17,769 INFO L85 PathProgramCache]: Analyzing trace with hash 820076597, now seen corresponding path program 1 times [2024-11-21 10:39:17,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:17,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352321357] [2024-11-21 10:39:17,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:17,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:17,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:17,771 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 10:39:17,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-21 10:39:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:18,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 10:39:18,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:18,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-21 10:39:18,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:39:18,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-11-21 10:39:18,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2024-11-21 10:39:18,138 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-21 10:39:18,156 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-21 10:39:18,157 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:39:18,157 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:39:18,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352321357] [2024-11-21 10:39:18,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352321357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:39:18,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:39:18,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 10:39:18,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299461653] [2024-11-21 10:39:18,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:39:18,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 10:39:18,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:39:18,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 10:39:18,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-21 10:39:18,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:18,158 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:39:18,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 10:39:18,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:18,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:18,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-11-21 10:39:18,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:24,876 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse5 (select .cse2 |c_~#top~0.offset|))) (let ((.cse4 (= |c_thr1Thread3of3ForFork0_push_~oldTop~0#1| .cse5))) (let ((.cse0 (not .cse4))) (and (or .cse0 (forall ((|thr1Thread3of3ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (_ bv0 32) (select (select (let ((.cse1 (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| |c_thr1Thread3of3ForFork0_push_#t~mem8#1|)))) (store .cse1 |thr1Thread3of3ForFork0_push_~#ret~0#1.base| (store (select .cse1 |thr1Thread3of3ForFork0_push_~#ret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|))))) (not (bvsgt (bvadd (_ bv1 32) c_~next_alloc_idx~0) (_ bv65 32))) (not (bvsgt (bvadd (_ bv3 32) c_~next_alloc_idx~0) (_ bv65 32))) (or .cse0 (forall ((|thr1Thread3of3ForFork0_push_~#ret~0#1.base| (_ BitVec 32))) (not (= (select (select (let ((.cse3 (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| (select (select |c_#memory_int| |c_thr1Thread3of3ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#newTop~0#1.offset|))))) (store .cse3 |thr1Thread3of3ForFork0_push_~#ret~0#1.base| (store (select .cse3 |thr1Thread3of3ForFork0_push_~#ret~0#1.base|) |c_thr1Thread3of3ForFork0_push_~#ret~0#1.offset| (_ bv1 32)))) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (or .cse4 (forall ((|thr1Thread3of3ForFork0_push_~#ret~0#1.base| (_ BitVec 32)) (v_DerPreprocessor_4 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (select (store |c_#memory_int| |thr1Thread3of3ForFork0_push_~#ret~0#1.base| v_DerPreprocessor_4) |c_~#top~0.base|) |c_~#top~0.offset|) (_ bv0 32))))) (not (= (_ bv0 32) c_~next_alloc_idx~0)) (not (= (_ bv0 32) (bvadd (_ bv2 32) c_~next_alloc_idx~0))) (not (= (_ bv0 32) .cse5))))))) is different from false [2024-11-21 10:39:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-21 10:39:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:39:25,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-21 10:39:25,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:25,384 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:25,384 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:25,385 INFO L139 ounterexampleChecker]: Examining path program with hash -469295649, occurence #1 [2024-11-21 10:39:25,385 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:39:25,385 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:25,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:25,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1315043628, now seen corresponding path program 1 times [2024-11-21 10:39:25,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:25,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124242964] [2024-11-21 10:39:25,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:25,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:25,388 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 10:39:25,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-21 10:39:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:25,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-21 10:39:25,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:25,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:39:25,912 INFO L349 Elim1Store]: treesize reduction 70, result has 17.6 percent of original size [2024-11-21 10:39:25,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 25 [2024-11-21 10:39:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-21 10:39:25,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:39:25,970 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:39:25,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124242964] [2024-11-21 10:39:25,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124242964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:39:25,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:39:25,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-21 10:39:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044484546] [2024-11-21 10:39:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:39:25,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-21 10:39:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:39:25,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-21 10:39:25,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-21 10:39:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:25,971 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:39:25,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2024-11-21 10:39:25,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:25,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:25,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-11-21 10:39:25,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:39:25,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:27,677 WARN L331 ript$VariableManager]: TermVariable v_subst_30 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:27,677 WARN L331 ript$VariableManager]: TermVariable v_subst_29 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:27,677 WARN L331 ript$VariableManager]: TermVariable |thr1Thread1of3ForFork0_push_~#ret~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-21 10:39:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:39:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:39:30,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-21 10:39:30,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:30,221 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:30,221 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:30,221 INFO L139 ounterexampleChecker]: Examining path program with hash 193602383, occurence #1 [2024-11-21 10:39:30,221 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:39:30,221 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:30,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:30,221 INFO L85 PathProgramCache]: Analyzing trace with hash -242964355, now seen corresponding path program 1 times [2024-11-21 10:39:30,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:30,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726948866] [2024-11-21 10:39:30,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:30,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:30,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:30,224 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 10:39:30,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-21 10:39:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:30,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-21 10:39:30,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:30,639 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2024-11-21 10:39:30,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2024-11-21 10:39:30,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:39:30,783 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-21 10:39:30,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-21 10:39:30,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-21 10:39:30,978 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-21 10:39:30,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 29 [2024-11-21 10:39:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:39:31,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:39:31,123 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:39:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726948866] [2024-11-21 10:39:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726948866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:39:31,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:39:31,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-21 10:39:31,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482911688] [2024-11-21 10:39:31,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:39:31,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-21 10:39:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:39:31,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-21 10:39:31,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-21 10:39:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:31,124 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:39:31,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 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) [2024-11-21 10:39:31,124 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:31,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:31,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-11-21 10:39:31,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:39:31,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:39:31,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:33,493 WARN L331 ript$VariableManager]: TermVariable v_subst_32 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,493 WARN L331 ript$VariableManager]: TermVariable v_subst_31 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,674 WARN L331 ript$VariableManager]: TermVariable v_subst_33 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,674 WARN L331 ript$VariableManager]: TermVariable v_subst_37 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,674 WARN L331 ript$VariableManager]: TermVariable v_subst_36 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,674 WARN L331 ript$VariableManager]: TermVariable v_subst_35 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,674 WARN L331 ript$VariableManager]: TermVariable v_subst_34 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,839 WARN L331 ript$VariableManager]: TermVariable |thr1Thread2of3ForFork0_push_~#newTop~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,839 WARN L331 ript$VariableManager]: TermVariable |thr1Thread2of3ForFork0_push_~#ret~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:33,839 WARN L331 ript$VariableManager]: TermVariable |thr1Thread2of3ForFork0_push_~#newTop~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-21 10:39:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:39:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:39:34,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-21 10:39:34,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-21 10:39:34,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:34,420 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:34,420 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:34,421 INFO L139 ounterexampleChecker]: Examining path program with hash -1299525479, occurence #1 [2024-11-21 10:39:34,421 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:39:34,421 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:34,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:34,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1855519367, now seen corresponding path program 1 times [2024-11-21 10:39:34,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:34,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646757955] [2024-11-21 10:39:34,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:34,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:34,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:34,424 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 10:39:34,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-21 10:39:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:34,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-21 10:39:34,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:34,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-21 10:39:34,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:39:34,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:39:35,036 INFO L349 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2024-11-21 10:39:35,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 24 [2024-11-21 10:39:35,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:39:35,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-21 10:39:35,300 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-21 10:39:35,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2024-11-21 10:39:35,538 INFO L349 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2024-11-21 10:39:35,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 49 [2024-11-21 10:39:36,412 INFO L349 Elim1Store]: treesize reduction 124, result has 52.5 percent of original size [2024-11-21 10:39:36,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 134 treesize of output 206 [2024-11-21 10:39:51,924 INFO L349 Elim1Store]: treesize reduction 60, result has 49.2 percent of original size [2024-11-21 10:39:51,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 75 treesize of output 104 [2024-11-21 10:39:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 10:39:52,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 10:39:52,163 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 10:39:52,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646757955] [2024-11-21 10:39:52,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646757955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 10:39:52,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 10:39:52,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-21 10:39:52,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428724447] [2024-11-21 10:39:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 10:39:52,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-21 10:39:52,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 10:39:52,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-21 10:39:52,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-21 10:39:52,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:52,165 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 10:39:52,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 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) [2024-11-21 10:39:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2024-11-21 10:39:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:39:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:39:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-11-21 10:39:52,165 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:55,587 WARN L331 ript$VariableManager]: TermVariable |thr1Thread3of3ForFork0_push_~#newTop~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:55,587 WARN L331 ript$VariableManager]: TermVariable v_subst_39 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:55,587 WARN L331 ript$VariableManager]: TermVariable v_subst_38 not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:55,790 WARN L331 ript$VariableManager]: TermVariable |thr1Thread1of3ForFork0_push_~#newTop~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:55,790 WARN L331 ript$VariableManager]: TermVariable |thr1Thread1of3ForFork0_push_~#ret~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2024-11-21 10:39:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 10:39:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-21 10:39:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-21 10:39:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 10:39:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-21 10:39:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-21 10:39:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-21 10:39:56,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-21 10:39:56,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:56,489 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 10:39:56,489 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 10:39:56,489 INFO L139 ounterexampleChecker]: Examining path program with hash 745347524, occurence #1 [2024-11-21 10:39:56,489 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 10:39:56,489 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 10:39:56,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 10:39:56,489 INFO L85 PathProgramCache]: Analyzing trace with hash 58568008, now seen corresponding path program 1 times [2024-11-21 10:39:56,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 10:39:56,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064014063] [2024-11-21 10:39:56,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 10:39:56,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 10:39:56,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 10:39:56,492 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 10:39:56,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-21 10:39:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 10:39:56,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-21 10:39:56,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 10:39:56,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:39:57,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-21 10:39:57,293 INFO L349 Elim1Store]: treesize reduction 55, result has 24.7 percent of original size [2024-11-21 10:39:57,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2024-11-21 10:39:57,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:39:57,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-11-21 10:39:57,440 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-21 10:39:57,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2024-11-21 10:40:03,205 INFO L349 Elim1Store]: treesize reduction 145, result has 37.2 percent of original size [2024-11-21 10:40:03,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 278 treesize of output 336 [2024-11-21 10:40:03,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 199 [2024-11-21 10:40:03,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 204 [2024-11-21 10:40:03,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 187 [2024-11-21 10:40:03,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 184 [2024-11-21 10:40:03,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 181 [2024-11-21 10:40:04,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 106 [2024-11-21 10:40:04,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:04,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-11-21 10:40:11,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-21 10:40:11,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-21 10:40:11,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-11-21 10:40:12,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:12,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:40:12,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 19 [2024-11-21 10:40:12,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-21 10:40:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:12,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:40:12,315 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-21 10:40:12,320 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-21 10:40:12,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2024-11-21 10:40:12,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2024-11-21 10:40:12,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-11-21 10:40:12,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:12,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-21 10:40:13,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:13,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-21 10:40:13,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2024-11-21 10:40:13,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:13,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 1 [2024-11-21 10:40:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:13,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 1 [2024-11-21 10:40:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-21 10:40:13,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 1 [2024-11-21 10:40:13,978 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-21 10:40:13,980 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-21 10:40:14,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2024-11-21 10:41:21,031 WARN L286 SmtUtils]: Spent 56.02s on a formula simplification. DAG size of input: 3915 DAG size of output: 382 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-21 10:41:21,032 INFO L349 Elim1Store]: treesize reduction 7602, result has 8.6 percent of original size [2024-11-21 10:41:21,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 43 select indices, 43 select index equivalence classes, 1 disjoint index pairs (out of 903 index pairs), introduced 44 new quantified variables, introduced 945 case distinctions, treesize of input 665 treesize of output 1215 [2024-11-21 10:41:49,186 INFO L224 Elim1Store]: Index analysis took 28031 ms Killed by 15