./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c --full-output --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1c4755c5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 22:51:43,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 22:51:43,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 22:51:43,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 22:51:43,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 22:51:43,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 22:51:43,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 22:51:43,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 22:51:43,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 22:51:43,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 22:51:43,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 22:51:43,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 22:51:43,404 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 22:51:43,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 22:51:43,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 22:51:43,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 22:51:43,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 22:51:43,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 22:51:43,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 22:51:43,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 22:51:43,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 22:51:43,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 22:51:43,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 22:51:43,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 22:51:43,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 22:51:43,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 22:51:43,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 22:51:43,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 22:51:43,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 22:51:43,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 22:51:43,407 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 22:51:43,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 22:51:43,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 22:51:43,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 22:51:43,407 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 22:51:43,407 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 22:51:43,407 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 -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-12-17 22:51:43,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 22:51:43,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 22:51:43,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 22:51:43,640 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 22:51:43,640 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 22:51:43,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2024-12-17 22:51:44,755 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/6c102e7ca/314fe4f3557140089d07f63e56b745bd/FLAG20bb10eae [2024-12-17 22:51:44,992 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 22:51:44,992 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2024-12-17 22:51:45,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/6c102e7ca/314fe4f3557140089d07f63e56b745bd/FLAG20bb10eae [2024-12-17 22:51:45,326 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/6c102e7ca/314fe4f3557140089d07f63e56b745bd [2024-12-17 22:51:45,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 22:51:45,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 22:51:45,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 22:51:45,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 22:51:45,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 22:51:45,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b0f992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45, skipping insertion in model container [2024-12-17 22:51:45,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,342 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 22:51:45,449 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-12-17 22:51:45,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 22:51:45,467 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 22:51:45,480 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-12-17 22:51:45,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 22:51:45,495 INFO L204 MainTranslator]: Completed translation [2024-12-17 22:51:45,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45 WrapperNode [2024-12-17 22:51:45,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 22:51:45,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 22:51:45,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 22:51:45,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 22:51:45,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,521 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 173 [2024-12-17 22:51:45,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 22:51:45,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 22:51:45,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 22:51:45,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 22:51:45,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,534 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 22:51:45,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 22:51:45,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 22:51:45,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 22:51:45,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (1/1) ... [2024-12-17 22:51:45,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 22:51:45,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 22:51:45,567 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) [2024-12-17 22:51:45,570 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 [2024-12-17 22:51:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 22:51:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 22:51:45,587 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 22:51:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 22:51:45,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 22:51:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 22:51:45,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 22:51:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 22:51:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 22:51:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 22:51:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 22:51:45,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 22:51:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 22:51:45,589 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 22:51:45,665 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 22:51:45,666 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 22:51:45,948 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 22:51:45,948 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 22:51:46,165 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 22:51:46,166 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 22:51:46,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:51:46 BoogieIcfgContainer [2024-12-17 22:51:46,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 22:51:46,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 22:51:46,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 22:51:46,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 22:51:46,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:51:45" (1/3) ... [2024-12-17 22:51:46,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794e8794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:51:46, skipping insertion in model container [2024-12-17 22:51:46,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:51:45" (2/3) ... [2024-12-17 22:51:46,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794e8794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:51:46, skipping insertion in model container [2024-12-17 22:51:46,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:51:46" (3/3) ... [2024-12-17 22:51:46,172 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2024-12-17 22:51:46,184 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 22:51:46,185 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-vector-add.wvr.c that has 4 procedures, 27 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-12-17 22:51:46,185 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 22:51:46,220 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 22:51:46,252 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 22:51:46,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 22:51:46,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 22:51:46,254 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) [2024-12-17 22:51:46,256 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 [2024-12-17 22:51:46,302 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 22:51:46,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 22:51:46,317 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;@4b8a0a44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 22:51:46,317 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 22:51:46,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 22:51:46,625 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 22:51:46,625 INFO L139 ounterexampleChecker]: Examining path program with hash 1421899143, occurence #1 [2024-12-17 22:51:46,625 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 22:51:46,625 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 22:51:46,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 22:51:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1164922253, now seen corresponding path program 1 times [2024-12-17 22:51:46,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 22:51:46,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169322033] [2024-12-17 22:51:46,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 22:51:46,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 22:51:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 22:51:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 22:51:47,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 22:51:47,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169322033] [2024-12-17 22:51:47,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169322033] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 22:51:47,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 22:51:47,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 22:51:47,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575864121] [2024-12-17 22:51:47,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 22:51:47,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 22:51:47,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 22:51:47,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 22:51:47,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-17 22:51:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:47,092 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 22:51:47,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 22:51:47,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:47,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 22:51:47,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 22:51:47,187 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 22:51:47,187 INFO L139 ounterexampleChecker]: Examining path program with hash 1421899143, occurence #2 [2024-12-17 22:51:47,187 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 22:51:47,187 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 22:51:47,188 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:47,188 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2024-12-17 22:51:47,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:47,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-12-17 22:51:47,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:47,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2024-12-17 22:51:47,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:47,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-12-17 22:51:47,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:47,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-12-17 22:51:47,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:47,200 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 22:51:47,200 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 22:51:47,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 22:51:47,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1507973768, now seen corresponding path program 1 times [2024-12-17 22:51:47,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 22:51:47,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981987479] [2024-12-17 22:51:47,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 22:51:47,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 22:51:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 22:51:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 22:51:47,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 22:51:47,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981987479] [2024-12-17 22:51:47,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981987479] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 22:51:47,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225251249] [2024-12-17 22:51:47,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 22:51:47,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 22:51:47,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 22:51:47,476 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) [2024-12-17 22:51:47,478 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 [2024-12-17 22:51:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 22:51:47,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 22:51:47,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 22:51:47,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 22:51:47,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 22:51:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-17 22:51:47,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225251249] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 22:51:47,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 22:51:47,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-12-17 22:51:47,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110039327] [2024-12-17 22:51:47,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 22:51:47,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-17 22:51:47,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 22:51:47,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-17 22:51:47,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-12-17 22:51:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:47,741 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 22:51:47,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 states have internal predecessors, (56), 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) [2024-12-17 22:51:47,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:47,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:47,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 22:51:47,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-17 22:51:48,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 22:51:48,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 22:51:48,150 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 22:51:48,150 INFO L139 ounterexampleChecker]: Examining path program with hash 1421899143, occurence #3 [2024-12-17 22:51:48,150 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 22:51:48,150 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 22:51:48,150 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:48,150 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 22:51:48,151 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,151 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 22:51:48,151 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,151 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 22:51:48,151 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,151 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-17 22:51:48,151 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,151 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-17 22:51:48,151 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:48,152 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 22:51:48,152 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 22:51:48,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 22:51:48,153 INFO L85 PathProgramCache]: Analyzing trace with hash -415287789, now seen corresponding path program 2 times [2024-12-17 22:51:48,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 22:51:48,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616454143] [2024-12-17 22:51:48,153 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 22:51:48,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 22:51:48,188 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 22:51:48,188 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 22:51:48,333 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-17 22:51:48,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 22:51:48,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616454143] [2024-12-17 22:51:48,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616454143] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 22:51:48,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 22:51:48,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-17 22:51:48,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834591932] [2024-12-17 22:51:48,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 22:51:48,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-17 22:51:48,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 22:51:48,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-17 22:51:48,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-17 22:51:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:48,335 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 22:51:48,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 22:51:48,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:48,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 22:51:48,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 22:51:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-17 22:51:48,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-17 22:51:48,708 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 22:51:48,708 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 22:51:48,708 INFO L139 ounterexampleChecker]: Examining path program with hash 1421899143, occurence #4 [2024-12-17 22:51:48,709 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 22:51:48,709 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 22:51:48,709 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:48,709 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 22:51:48,709 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,709 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 22:51:48,709 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,709 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 22:51:48,709 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,709 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-17 22:51:48,709 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:48,709 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-12-17 22:51:48,709 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:48,709 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 22:51:48,710 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 22:51:48,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 22:51:48,710 INFO L85 PathProgramCache]: Analyzing trace with hash -281495818, now seen corresponding path program 3 times [2024-12-17 22:51:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 22:51:48,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565550878] [2024-12-17 22:51:48,710 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 22:51:48,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 22:51:48,761 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 22:51:48,761 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 22:51:48,958 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-17 22:51:48,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 22:51:48,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565550878] [2024-12-17 22:51:48,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565550878] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 22:51:48,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697725578] [2024-12-17 22:51:48,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 22:51:48,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 22:51:48,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 22:51:48,964 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) [2024-12-17 22:51:48,965 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 [2024-12-17 22:51:49,087 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 22:51:49,087 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 22:51:49,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-17 22:51:49,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 22:51:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-17 22:51:49,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 22:51:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-17 22:51:49,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697725578] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 22:51:49,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 22:51:49,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-12-17 22:51:49,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186002702] [2024-12-17 22:51:49,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 22:51:49,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-17 22:51:49,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 22:51:49,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-17 22:51:49,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-12-17 22:51:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:49,326 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 22:51:49,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 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) [2024-12-17 22:51:49,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:49,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 22:51:49,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-17 22:51:49,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 22:51:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-17 22:51:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 22:51:49,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-17 22:51:49,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 22:51:49,692 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 22:51:49,692 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 22:51:49,692 INFO L139 ounterexampleChecker]: Examining path program with hash 1421899143, occurence #5 [2024-12-17 22:51:49,692 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 22:51:49,692 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 22:51:49,692 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:49,692 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2024-12-17 22:51:49,692 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:49,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-12-17 22:51:49,693 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:49,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-12-17 22:51:49,693 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:49,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-12-17 22:51:49,693 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 22:51:49,693 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-12-17 22:51:49,693 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 22:51:49,693 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 22:51:49,693 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 22:51:49,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 22:51:49,693 INFO L85 PathProgramCache]: Analyzing trace with hash -507437173, now seen corresponding path program 4 times [2024-12-17 22:51:49,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 22:51:49,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090614654] [2024-12-17 22:51:49,693 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 22:51:49,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 22:51:49,718 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 22:51:49,718 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 22:51:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-17 22:51:49,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 22:51:49,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090614654] [2024-12-17 22:51:49,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090614654] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 22:51:49,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505266740] [2024-12-17 22:51:49,830 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 22:51:49,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 22:51:49,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 22:51:49,831 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) [2024-12-17 22:51:49,833 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 [2024-12-17 22:51:49,914 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 22:51:49,915 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 22:51:49,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-17 22:51:49,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 22:51:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-17 22:51:50,056 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 22:51:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-17 22:51:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505266740] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 22:51:50,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 22:51:50,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 23 [2024-12-17 22:51:50,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173460463] [2024-12-17 22:51:50,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 22:51:50,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-17 22:51:50,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 22:51:50,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-17 22:51:50,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-12-17 22:51:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:50,170 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 22:51:50,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 23 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 22:51:50,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:50,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 22:51:50,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-12-17 22:51:50,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 22:51:50,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 22:51:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 22:51:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 22:51:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-17 22:51:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 22:51:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-17 22:51:51,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-17 22:51:51,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 22:51:51,282 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 22:51:51,282 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 22:51:51,282 INFO L139 ounterexampleChecker]: Examining path program with hash -1610804955, occurence #1 [2024-12-17 22:51:51,282 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 22:51:51,282 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 22:51:51,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 22:51:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash -303642851, now seen corresponding path program 5 times [2024-12-17 22:51:51,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 22:51:51,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589939360] [2024-12-17 22:51:51,283 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 22:51:51,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 22:51:51,565 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 22:51:51,565 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 22:51:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-17 22:51:56,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 22:51:56,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589939360] [2024-12-17 22:51:56,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589939360] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 22:51:56,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633504473] [2024-12-17 22:51:56,031 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-17 22:51:56,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 22:51:56,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 22:51:56,033 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) [2024-12-17 22:51:56,037 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 [2024-12-17 22:51:56,386 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-12-17 22:51:56,386 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 22:51:56,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-12-17 22:51:56,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 22:51:56,412 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 5 [2024-12-17 22:51:56,525 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 15 treesize of output 1 [2024-12-17 22:51:56,579 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-12-17 22:51:56,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-12-17 22:51:56,628 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 8 treesize of output 1 [2024-12-17 22:51:56,668 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 8 treesize of output 1 [2024-12-17 22:51:56,712 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 15 treesize of output 1 [2024-12-17 22:51:56,773 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-12-17 22:51:56,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2024-12-17 22:51:56,849 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 8 treesize of output 1 [2024-12-17 22:51:56,862 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 8 treesize of output 1 [2024-12-17 22:51:56,884 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 8 treesize of output 1 [2024-12-17 22:51:56,900 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-12-17 22:51:56,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2024-12-17 22:51:56,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2024-12-17 22:51:56,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2024-12-17 22:51:57,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2024-12-17 22:51:57,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-12-17 22:51:57,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2024-12-17 22:51:57,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2024-12-17 22:51:57,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 72 [2024-12-17 22:51:57,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 100 [2024-12-17 22:51:58,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 9 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 108 [2024-12-17 22:51:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-17 22:51:58,679 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 22:52:31,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 22:52:31,810 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 1 case distinctions, treesize of input 132058 treesize of output 84254 [2024-12-17 22:52:42,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 22:52:42,318 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 155690 treesize of output 83979 [2024-12-17 22:52:42,330 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-17 22:52:42,337 INFO L173 IndexEqualityManager]: detected equality via solver Killed by 15