./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 44c38e66 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/weaver/chl-nzb-file-subst.wvr.c -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 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-44c38e6-m [2025-04-24 19:43:57,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 19:43:57,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 19:43:57,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 19:43:57,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 19:43:57,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 19:43:57,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 19:43:57,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 19:43:57,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 19:43:57,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 19:43:57,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 19:43:57,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 19:43:57,573 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 19:43:57,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 19:43:57,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 19:43:57,573 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 19:43:57,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 19:43:57,574 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:43:57,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:43:57,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:43:57,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 19:43:57,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 19:43:57,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 19:43:57,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 19:43:57,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:43:57,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 19:43:57,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 19:43:57,576 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 19:43:57,576 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 -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 [2025-04-24 19:43:57,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 19:43:57,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 19:43:57,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 19:43:57,808 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 19:43:57,809 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 19:43:57,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2025-04-24 19:43:59,145 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bd448d2aa/7a5a688f27d945b8a0c24c00bcac165a/FLAG7aa860bf9 [2025-04-24 19:43:59,374 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 19:43:59,375 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2025-04-24 19:43:59,384 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bd448d2aa/7a5a688f27d945b8a0c24c00bcac165a/FLAG7aa860bf9 [2025-04-24 19:44:00,145 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bd448d2aa/7a5a688f27d945b8a0c24c00bcac165a [2025-04-24 19:44:00,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 19:44:00,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 19:44:00,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 19:44:00,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 19:44:00,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 19:44:00,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52382710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00, skipping insertion in model container [2025-04-24 19:44:00,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 19:44:00,373 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/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2025-04-24 19:44:00,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:44:00,397 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 19:44:00,444 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/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2025-04-24 19:44:00,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 19:44:00,455 INFO L204 MainTranslator]: Completed translation [2025-04-24 19:44:00,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00 WrapperNode [2025-04-24 19:44:00,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 19:44:00,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 19:44:00,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 19:44:00,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 19:44:00,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,508 INFO L138 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 591 [2025-04-24 19:44:00,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 19:44:00,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 19:44:00,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 19:44:00,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 19:44:00,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,538 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 19:44:00,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 19:44:00,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 19:44:00,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 19:44:00,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (1/1) ... [2025-04-24 19:44:00,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 19:44:00,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:00,589 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 19:44:00,592 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 19:44:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 19:44:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 19:44:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 19:44:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 19:44:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 19:44:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-24 19:44:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-24 19:44:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 19:44:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 19:44:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 19:44:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 19:44:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 19:44:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 19:44:00,611 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 19:44:00,712 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 19:44:00,714 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 19:44:01,352 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 19:44:01,352 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 19:44:01,917 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 19:44:01,917 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-04-24 19:44:01,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:44:01 BoogieIcfgContainer [2025-04-24 19:44:01,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 19:44:01,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 19:44:01,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 19:44:01,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 19:44:01,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 07:44:00" (1/3) ... [2025-04-24 19:44:01,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e33da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:44:01, skipping insertion in model container [2025-04-24 19:44:01,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 07:44:00" (2/3) ... [2025-04-24 19:44:01,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e33da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 07:44:01, skipping insertion in model container [2025-04-24 19:44:01,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 07:44:01" (3/3) ... [2025-04-24 19:44:01,924 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2025-04-24 19:44:01,933 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 19:44:01,934 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-subst.wvr.c that has 4 procedures, 38 locations, 46 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-24 19:44:01,935 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 19:44:02,037 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-24 19:44:02,067 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:44:02,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 19:44:02,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:02,071 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 19:44:02,072 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 19:44:02,145 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 19:44:02,157 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 19:44:02,163 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;@e75eb6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 19:44:02,163 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-24 19:44:02,356 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:02,356 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:02,357 INFO L139 ounterexampleChecker]: Examining path program with hash 182587188, occurence #1 [2025-04-24 19:44:02,357 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:02,357 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:02,360 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1714072652, now seen corresponding path program 1 times [2025-04-24 19:44:02,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:02,365 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54096188] [2025-04-24 19:44:02,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:02,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-24 19:44:02,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-24 19:44:02,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:02,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:02,593 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 19:44:02,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:02,594 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54096188] [2025-04-24 19:44:02,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54096188] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:02,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:02,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-24 19:44:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388159394] [2025-04-24 19:44:02,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:02,599 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-24 19:44:02,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:02,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-24 19:44:02,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-24 19:44:02,615 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:02,616 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:02,616 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:44:02,617 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:02,688 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:02,689 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 19:44:02,689 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:02,689 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:02,689 INFO L139 ounterexampleChecker]: Examining path program with hash -710298645, occurence #1 [2025-04-24 19:44:02,689 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:02,689 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:02,689 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:02,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1534549704, now seen corresponding path program 1 times [2025-04-24 19:44:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:02,689 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022457323] [2025-04-24 19:44:02,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:02,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-24 19:44:02,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-24 19:44:02,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:02,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:02,953 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 19:44:02,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:02,953 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022457323] [2025-04-24 19:44:02,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022457323] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:02,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:02,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 19:44:02,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160423719] [2025-04-24 19:44:02,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:02,954 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-24 19:44:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:02,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-24 19:44:02,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-24 19:44:02,954 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:02,955 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:02,955 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:44:02,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:02,955 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,054 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,054 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:03,054 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-24 19:44:03,054 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:03,054 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:03,054 INFO L139 ounterexampleChecker]: Examining path program with hash -266396706, occurence #1 [2025-04-24 19:44:03,054 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:03,055 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:03,055 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:03,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1713902746, now seen corresponding path program 1 times [2025-04-24 19:44:03,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:03,055 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419118816] [2025-04-24 19:44:03,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:03,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:03,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-24 19:44:03,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-24 19:44:03,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:03,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:03,226 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 19:44:03,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:03,227 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419118816] [2025-04-24 19:44:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419118816] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:03,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:03,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:44:03,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968239667] [2025-04-24 19:44:03,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:03,228 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:03,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:03,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:03,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:03,228 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,229 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:03,229 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 19:44:03,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:03,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:03,298 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,298 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 19:44:03,298 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:03,298 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:03,299 INFO L139 ounterexampleChecker]: Examining path program with hash -266396706, occurence #2 [2025-04-24 19:44:03,299 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:03,299 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:03,299 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,299 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2025-04-24 19:44:03,299 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,299 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2025-04-24 19:44:03,312 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:03,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2025-04-24 19:44:03,312 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:03,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 19:44:03,312 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:03,312 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-24 19:44:03,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-24 19:44:03,313 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:03,313 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 19:44:03,313 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:03,313 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:03,313 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:03,314 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:03,314 INFO L85 PathProgramCache]: Analyzing trace with hash -208233576, now seen corresponding path program 1 times [2025-04-24 19:44:03,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:03,314 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149652808] [2025-04-24 19:44:03,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:03,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:03,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-24 19:44:03,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-24 19:44:03,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:03,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 19:44:03,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:03,513 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149652808] [2025-04-24 19:44:03,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149652808] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:03,513 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491380344] [2025-04-24 19:44:03,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:03,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:03,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:03,517 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 19:44:03,517 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 19:44:03,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-24 19:44:03,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-24 19:44:03,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:03,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:03,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-24 19:44:03,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:03,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 19:44:03,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 19:44:03,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491380344] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:03,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:03,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2025-04-24 19:44:03,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562639373] [2025-04-24 19:44:03,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:03,747 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-24 19:44:03,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:03,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-24 19:44:03,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-04-24 19:44:03,747 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,747 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:03,748 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:44:03,748 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,748 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:03,748 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,748 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,858 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:03,858 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:03,859 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:03,859 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:03,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-24 19:44:04,059 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 19:44:04,060 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:04,060 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:04,061 INFO L139 ounterexampleChecker]: Examining path program with hash -266396706, occurence #3 [2025-04-24 19:44:04,061 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:04,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-24 19:44:04,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 19:44:04,061 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 19:44:04,061 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 19:44:04,061 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:44:04,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-04-24 19:44:04,061 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,061 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-24 19:44:04,061 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,061 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:04,061 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:04,062 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:04,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1412968678, now seen corresponding path program 2 times [2025-04-24 19:44:04,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:04,062 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138137519] [2025-04-24 19:44:04,062 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:44:04,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:04,082 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-04-24 19:44:04,093 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 39 statements. [2025-04-24 19:44:04,094 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 19:44:04,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-24 19:44:04,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:04,203 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138137519] [2025-04-24 19:44:04,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138137519] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:04,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:04,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:44:04,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946190183] [2025-04-24 19:44:04,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:04,203 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:04,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:04,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:04,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:04,204 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,204 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:04,204 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:44:04,204 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,204 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:04,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,205 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:04,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,262 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 19:44:04,262 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:04,262 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:04,262 INFO L139 ounterexampleChecker]: Examining path program with hash -266396706, occurence #4 [2025-04-24 19:44:04,262 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:04,262 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:04,263 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,263 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-24 19:44:04,263 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,263 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-24 19:44:04,263 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,263 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-24 19:44:04,263 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,263 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 19:44:04,263 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,263 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-24 19:44:04,263 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,263 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 19:44:04,263 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,263 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-24 19:44:04,263 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:04,264 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 19:44:04,264 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:04,264 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:04,264 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:04,267 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash -55555166, now seen corresponding path program 1 times [2025-04-24 19:44:04,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:04,268 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286731988] [2025-04-24 19:44:04,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:04,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:04,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-24 19:44:04,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 19:44:04,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:04,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:04,564 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-24 19:44:04,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:04,565 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286731988] [2025-04-24 19:44:04,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286731988] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:04,565 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339184690] [2025-04-24 19:44:04,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:04,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:04,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:04,567 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 19:44:04,568 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 19:44:04,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-04-24 19:44:04,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-04-24 19:44:04,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:04,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:04,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 19:44:04,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-24 19:44:04,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 19:44:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-24 19:44:04,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339184690] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 19:44:04,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 19:44:04,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2025-04-24 19:44:04,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867107605] [2025-04-24 19:44:04,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 19:44:04,876 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-24 19:44:04,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:04,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-24 19:44:04,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2025-04-24 19:44:04,878 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,878 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:04,879 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 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 19:44:04,879 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,879 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:04,879 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,879 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,879 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,879 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,997 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:04,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:04,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:04,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:04,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:05,005 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 19:44:05,198 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 19:44:05,199 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:05,199 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:05,199 INFO L139 ounterexampleChecker]: Examining path program with hash -266396706, occurence #5 [2025-04-24 19:44:05,199 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-24 19:44:05,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-24 19:44:05,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-24 19:44:05,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-24 19:44:05,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-24 19:44:05,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-24 19:44:05,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2025-04-24 19:44:05,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2025-04-24 19:44:05,199 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 19:44:05,199 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2025-04-24 19:44:05,199 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 19:44:05,199 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 19:44:05,200 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:05,200 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:05,200 INFO L85 PathProgramCache]: Analyzing trace with hash 705370964, now seen corresponding path program 2 times [2025-04-24 19:44:05,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:05,200 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120044134] [2025-04-24 19:44:05,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 19:44:05,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:05,217 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 44 statements into 2 equivalence classes. [2025-04-24 19:44:05,253 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 44 statements. [2025-04-24 19:44:05,255 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 19:44:05,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-04-24 19:44:05,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:05,533 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120044134] [2025-04-24 19:44:05,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120044134] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:05,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:05,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-24 19:44:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654085931] [2025-04-24 19:44:05,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:05,533 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 19:44:05,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:05,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 19:44:05,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-24 19:44:05,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:05,536 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:05,536 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 19:44:05,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:05,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:05,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:05,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:05,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:05,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:05,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:05,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:05,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:05,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:05,832 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 19:44:05,832 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-24 19:44:05,832 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:05,832 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:05,832 INFO L139 ounterexampleChecker]: Examining path program with hash 1991035569, occurence #1 [2025-04-24 19:44:05,832 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:05,833 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:05,833 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:05,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1170187208, now seen corresponding path program 1 times [2025-04-24 19:44:05,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:05,833 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314830495] [2025-04-24 19:44:05,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:05,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:05,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-04-24 19:44:05,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-04-24 19:44:05,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:05,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-04-24 19:44:06,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:06,039 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314830495] [2025-04-24 19:44:06,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314830495] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:06,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:06,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:44:06,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044798429] [2025-04-24 19:44:06,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:06,040 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:06,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:06,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:06,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:06,041 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,041 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:06,041 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 19:44:06,041 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 19:44:06,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,135 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-24 19:44:06,136 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:06,136 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:06,136 INFO L139 ounterexampleChecker]: Examining path program with hash -2124046430, occurence #1 [2025-04-24 19:44:06,136 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:06,136 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:06,136 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash -81336253, now seen corresponding path program 1 times [2025-04-24 19:44:06,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:06,136 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53465666] [2025-04-24 19:44:06,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:06,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-04-24 19:44:06,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-04-24 19:44:06,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:06,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-04-24 19:44:06,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:06,384 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53465666] [2025-04-24 19:44:06,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53465666] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 19:44:06,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 19:44:06,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 19:44:06,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721964360] [2025-04-24 19:44:06,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 19:44:06,384 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 19:44:06,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 19:44:06,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 19:44:06,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 19:44:06,385 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,385 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 19:44:06,385 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,385 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,478 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 19:44:06,478 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-24 19:44:06,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 19:44:06,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 19:44:06,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 19:44:06,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 19:44:06,479 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-24 19:44:06,479 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 19:44:06,479 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 19:44:06,479 INFO L139 ounterexampleChecker]: Examining path program with hash 1357703447, occurence #1 [2025-04-24 19:44:06,479 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 19:44:06,479 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 19:44:06,480 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 19:44:06,480 INFO L85 PathProgramCache]: Analyzing trace with hash -14158785, now seen corresponding path program 1 times [2025-04-24 19:44:06,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 19:44:06,480 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958362960] [2025-04-24 19:44:06,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:06,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 19:44:06,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-24 19:44:07,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-24 19:44:07,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:07,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 19:44:18,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 19:44:18,859 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958362960] [2025-04-24 19:44:18,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958362960] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 19:44:18,860 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484142943] [2025-04-24 19:44:18,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 19:44:18,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 19:44:18,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 19:44:18,862 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 19:44:18,863 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 19:44:18,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-04-24 19:44:19,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-04-24 19:44:19,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 19:44:19,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 19:44:19,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 61 conjuncts are in the unsatisfiable core [2025-04-24 19:44:19,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 19:44:21,176 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-24 19:44:21,177 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 475 treesize of output 799 [2025-04-24 19:44:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-04-24 19:44:24,997 INFO L312 TraceCheckSpWp]: Computing backward predicates...