./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 01849734 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread/stack_longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-0184973-m [2025-04-24 16:07:06,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 16:07:06,278 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 16:07:06,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 16:07:06,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 16:07:06,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 16:07:06,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 16:07:06,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 16:07:06,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 16:07:06,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 16:07:06,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 16:07:06,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 16:07:06,310 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 16:07:06,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 16:07:06,311 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:07:06,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:07:06,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:07:06,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 16:07:06,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 [2025-04-24 16:07:06,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 16:07:06,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 16:07:06,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 16:07:06,541 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 16:07:06,541 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 16:07:06,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/stack_longer-1.i [2025-04-24 16:07:07,898 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/89e2d2e96/3a8fd1071d824fab85d7f5a6eef244c8/FLAG4951538fd [2025-04-24 16:07:08,087 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 16:07:08,087 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack_longer-1.i [2025-04-24 16:07:08,104 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/89e2d2e96/3a8fd1071d824fab85d7f5a6eef244c8/FLAG4951538fd [2025-04-24 16:07:08,948 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/89e2d2e96/3a8fd1071d824fab85d7f5a6eef244c8 [2025-04-24 16:07:08,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 16:07:08,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 16:07:08,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 16:07:08,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 16:07:08,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 16:07:08,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:07:08" (1/1) ... [2025-04-24 16:07:08,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55578ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:08, skipping insertion in model container [2025-04-24 16:07:08,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:07:08" (1/1) ... [2025-04-24 16:07:08,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 16:07:09,303 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2025-04-24 16:07:09,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:07:09,369 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 16:07:09,438 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2025-04-24 16:07:09,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:07:09,535 INFO L204 MainTranslator]: Completed translation [2025-04-24 16:07:09,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09 WrapperNode [2025-04-24 16:07:09,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 16:07:09,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 16:07:09,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 16:07:09,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 16:07:09,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,607 INFO L138 Inliner]: procedures = 277, calls = 431, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 546 [2025-04-24 16:07:09,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 16:07:09,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 16:07:09,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 16:07:09,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 16:07:09,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 16:07:09,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 16:07:09,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 16:07:09,650 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 16:07:09,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (1/1) ... [2025-04-24 16:07:09,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:07:09,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:07:09,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 16:07:09,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 16:07:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-04-24 16:07:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-04-24 16:07:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-04-24 16:07:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-04-24 16:07:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-24 16:07:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 16:07:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 16:07:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-24 16:07:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 16:07:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 16:07:09,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 16:07:09,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 16:07:09,703 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 16:07:09,813 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 16:07:09,814 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 16:07:10,358 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 16:07:10,358 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 16:07:13,469 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 16:07:13,470 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 16:07:13,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:07:13 BoogieIcfgContainer [2025-04-24 16:07:13,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 16:07:13,471 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 16:07:13,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 16:07:13,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 16:07:13,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 04:07:08" (1/3) ... [2025-04-24 16:07:13,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4f65b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:07:13, skipping insertion in model container [2025-04-24 16:07:13,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:07:09" (2/3) ... [2025-04-24 16:07:13,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4f65b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:07:13, skipping insertion in model container [2025-04-24 16:07:13,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:07:13" (3/3) ... [2025-04-24 16:07:13,476 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2025-04-24 16:07:13,485 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 16:07:13,487 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack_longer-1.i that has 3 procedures, 31 locations, 33 edges, 1 initial locations, 2 loop locations, and 2 error locations. [2025-04-24 16:07:13,487 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 16:07:13,538 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-24 16:07:13,566 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:07:13,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 16:07:13,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:07:13,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 16:07:13,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 16:07:13,640 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:07:13,650 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2025-04-24 16:07:13,655 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40f81d57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:07:13,655 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-24 16:07:13,720 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:13,720 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:13,721 INFO L139 ounterexampleChecker]: Examining path program with hash 1570507689, occurence #1 [2025-04-24 16:07:13,721 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:07:13,721 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:13,724 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1324303931, now seen corresponding path program 1 times [2025-04-24 16:07:13,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:13,729 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248296906] [2025-04-24 16:07:13,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:07:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:13,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-24 16:07:13,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-24 16:07:13,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:07:13,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:14,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:14,261 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248296906] [2025-04-24 16:07:14,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248296906] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:07:14,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:07:14,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 16:07:14,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964732934] [2025-04-24 16:07:14,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:07:14,265 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 16:07:14,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:14,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 16:07:14,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 16:07:14,279 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:14,280 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:14,282 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:14,282 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:14,384 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:14,384 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 16:07:14,384 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:14,385 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:14,385 INFO L139 ounterexampleChecker]: Examining path program with hash 756921851, occurence #1 [2025-04-24 16:07:14,385 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:07:14,385 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:14,386 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:14,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1069721770, now seen corresponding path program 1 times [2025-04-24 16:07:14,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:14,386 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418457931] [2025-04-24 16:07:14,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:07:14,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:14,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-24 16:07:14,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-24 16:07:14,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:07:14,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:14,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:14,549 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418457931] [2025-04-24 16:07:14,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418457931] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:07:14,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:07:14,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 16:07:14,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452976599] [2025-04-24 16:07:14,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:07:14,550 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:07:14,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:14,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:07:14,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:07:14,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:14,552 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:14,552 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:14,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:14,552 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:14,623 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:14,624 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:14,625 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 16:07:14,625 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:14,625 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:14,625 INFO L139 ounterexampleChecker]: Examining path program with hash 1275677073, occurence #1 [2025-04-24 16:07:14,625 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:07:14,625 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:14,626 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1589221397, now seen corresponding path program 1 times [2025-04-24 16:07:14,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:14,627 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082517990] [2025-04-24 16:07:14,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:07:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:14,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-24 16:07:14,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-24 16:07:14,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:07:14,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:14,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:14,897 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082517990] [2025-04-24 16:07:14,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082517990] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:07:14,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:07:14,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 16:07:14,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788488004] [2025-04-24 16:07:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:07:14,897 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:07:14,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:14,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:07:14,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:07:14,898 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:14,898 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:14,898 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:14,899 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:14,899 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:14,899 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:14,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:14,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:14,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:14,951 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 16:07:14,952 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:14,952 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:14,952 INFO L139 ounterexampleChecker]: Examining path program with hash -230702753, occurence #1 [2025-04-24 16:07:14,952 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:07:14,952 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:14,952 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:14,952 INFO L85 PathProgramCache]: Analyzing trace with hash 813354157, now seen corresponding path program 1 times [2025-04-24 16:07:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:14,952 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110645679] [2025-04-24 16:07:14,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:07:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:14,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-24 16:07:14,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-24 16:07:14,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:07:14,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:15,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:15,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:15,285 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110645679] [2025-04-24 16:07:15,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110645679] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:07:15,285 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533032314] [2025-04-24 16:07:15,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:07:15,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:15,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:07:15,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:07:15,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 16:07:15,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-24 16:07:15,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-24 16:07:15,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:07:15,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:15,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 16:07:15,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:07:15,536 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:15,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:15,696 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:07:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:15,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533032314] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:07:15,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:07:15,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-24 16:07:15,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016977849] [2025-04-24 16:07:15,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:07:15,755 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-24 16:07:15,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:15,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-24 16:07:15,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-04-24 16:07:15,755 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:15,755 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:15,755 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:15,755 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:15,755 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:15,755 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:15,755 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:15,953 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:15,953 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:15,953 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:15,955 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:15,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-24 16:07:16,155 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:16,155 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:16,155 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:16,156 INFO L139 ounterexampleChecker]: Examining path program with hash 264998807, occurence #1 [2025-04-24 16:07:16,156 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:07:16,156 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:16,156 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:16,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2040038710, now seen corresponding path program 2 times [2025-04-24 16:07:16,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:16,156 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809139652] [2025-04-24 16:07:16,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 16:07:16,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:16,178 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-04-24 16:07:16,231 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-04-24 16:07:16,231 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 16:07:16,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-24 16:07:16,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:16,817 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809139652] [2025-04-24 16:07:16,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809139652] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:07:16,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:07:16,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-24 16:07:16,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176233724] [2025-04-24 16:07:16,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:07:16,817 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-24 16:07:16,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:16,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-24 16:07:16,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-24 16:07:16,817 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:16,817 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:16,818 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:16,818 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:16,818 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:16,818 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:16,818 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:16,818 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:16,889 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:16,889 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:16,889 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:16,889 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:16,889 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:16,889 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 16:07:16,890 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:16,890 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:16,890 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #1 [2025-04-24 16:07:16,890 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:07:16,890 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:16,890 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:16,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1276027811, now seen corresponding path program 1 times [2025-04-24 16:07:16,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:16,890 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417005212] [2025-04-24 16:07:16,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:07:16,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:16,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-24 16:07:16,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-24 16:07:16,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:07:16,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:17,396 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:17,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:17,396 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417005212] [2025-04-24 16:07:17,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417005212] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:07:17,397 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385237549] [2025-04-24 16:07:17,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:07:17,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:17,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:07:17,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:07:17,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 16:07:17,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-04-24 16:07:17,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-04-24 16:07:17,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:07:17,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:17,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-24 16:07:17,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:07:17,627 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:17,757 INFO L354 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 28 treesize of output 15 [2025-04-24 16:07:17,783 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:17,810 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:17,842 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:17,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:07:18,386 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2025-04-24 16:07:18,393 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2025-04-24 16:07:18,442 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385237549] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:07:18,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:07:18,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2025-04-24 16:07:18,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714304488] [2025-04-24 16:07:18,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:07:18,443 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-24 16:07:18,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:18,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-24 16:07:18,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=189, Unknown=0, NotChecked=0, Total=306 [2025-04-24 16:07:18,444 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:18,444 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:18,444 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.611111111111111) internal successors, (119), 17 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:18,444 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:18,444 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:18,444 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:18,444 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:18,445 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:18,445 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:18,759 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:18,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:18,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:18,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:18,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:18,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 16:07:18,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-24 16:07:18,965 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:18,965 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:18,965 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:18,965 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #2 [2025-04-24 16:07:18,965 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 16:07:18,965 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 16:07:18,968 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:18,968 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 16:07:18,968 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:18,968 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 16:07:18,968 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,968 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 16:07:18,968 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,968 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 16:07:18,968 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,968 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 16:07:18,968 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,968 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 16:07:18,969 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,969 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-04-24 16:07:18,969 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,969 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 16:07:18,969 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,969 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-04-24 16:07:18,969 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,969 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-04-24 16:07:18,969 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:18,969 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 16:07:18,969 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:18,969 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:18,969 INFO L85 PathProgramCache]: Analyzing trace with hash -728143014, now seen corresponding path program 2 times [2025-04-24 16:07:18,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:18,969 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572696309] [2025-04-24 16:07:18,969 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 16:07:18,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:18,997 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-04-24 16:07:19,060 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-04-24 16:07:19,060 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 16:07:19,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:20,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:20,240 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572696309] [2025-04-24 16:07:20,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572696309] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:07:20,241 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521986308] [2025-04-24 16:07:20,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 16:07:20,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:20,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:07:20,244 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:07:20,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 16:07:20,347 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 81 statements into 2 equivalence classes. [2025-04-24 16:07:20,515 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-04-24 16:07:20,515 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 16:07:20,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:20,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-24 16:07:20,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:07:20,546 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,634 INFO L354 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 28 treesize of output 15 [2025-04-24 16:07:20,653 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,677 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,702 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,728 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,758 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,788 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,819 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:20,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:07:21,785 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2025-04-24 16:07:21,794 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2025-04-24 16:07:21,882 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:21,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521986308] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:07:21,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:07:21,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 32 [2025-04-24 16:07:21,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594824641] [2025-04-24 16:07:21,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:07:21,883 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-04-24 16:07:21,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:21,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-04-24 16:07:21,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=687, Unknown=0, NotChecked=0, Total=1056 [2025-04-24 16:07:21,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:21,884 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:21,884 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.484848484848484) internal successors, (214), 32 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:21,884 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:21,884 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:21,884 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:21,884 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:21,884 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:21,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 16:07:21,885 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:22,538 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:22,539 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:22,539 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:22,539 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:22,539 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:22,539 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 16:07:22,540 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-24 16:07:22,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-24 16:07:22,741 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:22,741 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:22,741 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:22,741 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #3 [2025-04-24 16:07:22,741 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 16:07:22,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 16:07:22,741 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:22,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 16:07:22,741 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:22,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 16:07:22,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 16:07:22,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 16:07:22,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,741 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 16:07:22,741 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-04-24 16:07:22,742 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:22,742 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 16:07:22,742 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:22,743 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:22,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1289287558, now seen corresponding path program 3 times [2025-04-24 16:07:22,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:22,743 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682601796] [2025-04-24 16:07:22,743 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 16:07:22,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:22,775 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-04-24 16:07:23,417 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-04-24 16:07:23,417 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-04-24 16:07:23,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:25,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:25,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:25,972 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682601796] [2025-04-24 16:07:25,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682601796] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:07:25,972 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607761860] [2025-04-24 16:07:25,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 16:07:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:07:25,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:07:25,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 16:07:26,095 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 151 statements into 19 equivalence classes. [2025-04-24 16:07:28,530 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) and asserted 151 of 151 statements. [2025-04-24 16:07:28,530 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2025-04-24 16:07:28,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:28,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-04-24 16:07:28,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:07:28,560 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,629 INFO L354 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 28 treesize of output 15 [2025-04-24 16:07:28,648 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,669 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,694 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,720 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,745 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,776 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,804 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,837 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,881 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,905 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,930 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,959 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:28,986 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:29,013 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:29,040 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:29,073 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:29,110 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:29,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:29,172 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:07:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 1125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:29,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607761860] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:07:29,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:07:29,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24, 23] total 68 [2025-04-24 16:07:29,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337835625] [2025-04-24 16:07:29,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:07:29,722 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2025-04-24 16:07:29,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:29,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2025-04-24 16:07:29,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1373, Invalid=3319, Unknown=0, NotChecked=0, Total=4692 [2025-04-24 16:07:29,725 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:29,725 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:29,726 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 6.159420289855072) internal successors, (425), 68 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-04-24 16:07:29,726 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-24 16:07:32,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-04-24 16:07:32,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-24 16:07:32,377 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-04-24 16:07:32,377 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:32,377 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:32,377 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #4 [2025-04-24 16:07:32,377 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 16:07:32,377 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 16:07:32,377 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 16:07:32,378 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-04-24 16:07:32,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-04-24 16:07:32,379 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,379 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-04-24 16:07:32,380 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,381 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-04-24 16:07:32,381 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,381 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-04-24 16:07:32,381 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,381 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-04-24 16:07:32,381 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,381 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-04-24 16:07:32,381 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,381 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-04-24 16:07:32,381 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:32,381 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 16:07:32,381 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:32,381 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash 953301690, now seen corresponding path program 4 times [2025-04-24 16:07:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:32,381 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790049859] [2025-04-24 16:07:32,381 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 16:07:32,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:32,433 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-04-24 16:07:32,704 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 291 of 291 statements. [2025-04-24 16:07:32,705 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 16:07:32,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:39,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:07:39,403 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790049859] [2025-04-24 16:07:39,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790049859] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:07:39,403 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284728211] [2025-04-24 16:07:39,403 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 16:07:39,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:39,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:07:39,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:07:39,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-24 16:07:39,586 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 291 statements into 2 equivalence classes. [2025-04-24 16:07:39,791 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 291 of 291 statements. [2025-04-24 16:07:39,791 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 16:07:39,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:07:39,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 2071 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-04-24 16:07:39,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:07:39,839 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:39,975 INFO L354 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 28 treesize of output 15 [2025-04-24 16:07:39,994 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,014 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,038 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,060 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,087 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,115 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,143 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,194 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,223 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,251 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,278 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,317 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,366 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,414 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,473 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,507 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,553 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,594 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,637 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,677 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,712 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,745 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,785 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,819 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,856 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,945 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:40,988 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,031 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,071 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,107 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,144 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,178 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,217 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,281 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,316 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,351 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,390 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-24 16:07:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:41,481 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:07:43,012 INFO L134 CoverageAnalysis]: Checked inductivity of 5035 backedges. 0 proven. 5035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:07:43,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284728211] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:07:43,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:07:43,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 44, 43] total 144 [2025-04-24 16:07:43,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624795818] [2025-04-24 16:07:43,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:07:43,013 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2025-04-24 16:07:43,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:07:43,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2025-04-24 16:07:43,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6027, Invalid=14853, Unknown=0, NotChecked=0, Total=20880 [2025-04-24 16:07:43,019 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:43,020 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:07:43,020 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 5.841379310344828) internal successors, (847), 144 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2025-04-24 16:07:43,020 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:07:53,550 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2025-04-24 16:07:53,551 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2025-04-24 16:07:53,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-24 16:07:53,752 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:07:53,752 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-24 16:07:53,752 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:07:53,753 INFO L139 ounterexampleChecker]: Examining path program with hash 35810137, occurence #5 [2025-04-24 16:07:53,753 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 16:07:53,753 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-24 16:07:53,753 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 47 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 54 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 75 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 82 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,753 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-04-24 16:07:53,753 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 103 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 110 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 117 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 124 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 131 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 138 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 152 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 159 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 166 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 173 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,754 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 194 [2025-04-24 16:07:53,754 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 201 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 208 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 229 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 243 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 250 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 271 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 278 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 285 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 292 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 299 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 306 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 313 [2025-04-24 16:07:53,755 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,755 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 320 [2025-04-24 16:07:53,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 327 [2025-04-24 16:07:53,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2025-04-24 16:07:53,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 341 [2025-04-24 16:07:53,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,756 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 348 [2025-04-24 16:07:53,756 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 355 [2025-04-24 16:07:53,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 362 [2025-04-24 16:07:53,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2025-04-24 16:07:53,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 376 [2025-04-24 16:07:53,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 383 [2025-04-24 16:07:53,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 390 [2025-04-24 16:07:53,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 397 [2025-04-24 16:07:53,757 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,757 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 404 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 418 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 425 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 432 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 439 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 446 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 460 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 467 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 474 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 481 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 488 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 502 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 509 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 516 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 523 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 530 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 544 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 551 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 558 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 565 [2025-04-24 16:07:53,758 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:07:53,758 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 16:07:53,758 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:07:53,759 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:07:53,759 INFO L85 PathProgramCache]: Analyzing trace with hash -341803206, now seen corresponding path program 5 times [2025-04-24 16:07:53,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:07:53,759 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580730785] [2025-04-24 16:07:53,759 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 16:07:53,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:07:53,847 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes. [2025-04-24 16:07:57,960 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) and asserted 571 of 571 statements. [2025-04-24 16:07:57,960 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 79 check-sat command(s) [2025-04-24 16:07:57,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:08:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 21255 backedges. 0 proven. 21255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:08:25,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:08:25,100 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580730785] [2025-04-24 16:08:25,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580730785] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:08:25,100 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136855995] [2025-04-24 16:08:25,100 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 16:08:25,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:08:25,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:08:25,102 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:08:25,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-24 16:08:25,432 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 571 statements into 79 equivalence classes.