./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1f73d82f Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 15:20:05,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 15:20:05,778 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-21 15:20:05,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 15:20:05,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 15:20:05,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 15:20:05,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 15:20:05,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 15:20:05,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 15:20:05,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 15:20:05,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 15:20:05,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 15:20:05,814 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 15:20:05,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 15:20:05,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 15:20:05,815 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 15:20:05,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 15:20:05,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 15:20:05,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 15:20:05,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 15:20:05,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 15:20:05,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 15:20:05,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 15:20:05,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 15:20:05,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 15:20:05,817 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 15:20:05,817 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 15:20:05,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 15:20:05,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 15:20:05,818 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 15:20:05,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 15:20:05,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 15:20:05,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 15:20:05,819 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 15:20:05,819 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 15:20:05,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-21 15:20:06,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 15:20:06,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 15:20:06,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 15:20:06,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 15:20:06,143 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 15:20:06,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2024-11-21 15:20:07,449 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/06145032e/6456bb247c374bb98d9079a59e92810c/FLAGfd21bf7e5 [2024-11-21 15:20:07,683 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 15:20:07,684 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2024-11-21 15:20:07,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/06145032e/6456bb247c374bb98d9079a59e92810c/FLAGfd21bf7e5 [2024-11-21 15:20:07,709 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/06145032e/6456bb247c374bb98d9079a59e92810c [2024-11-21 15:20:07,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 15:20:07,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 15:20:07,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 15:20:07,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 15:20:07,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 15:20:07,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:20:07" (1/1) ... [2024-11-21 15:20:07,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a838b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:07, skipping insertion in model container [2024-11-21 15:20:07,722 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:20:07" (1/1) ... [2024-11-21 15:20:07,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 15:20:07,931 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2024-11-21 15:20:07,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 15:20:07,957 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 15:20:08,012 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2024-11-21 15:20:08,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 15:20:08,037 INFO L204 MainTranslator]: Completed translation [2024-11-21 15:20:08,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08 WrapperNode [2024-11-21 15:20:08,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 15:20:08,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 15:20:08,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 15:20:08,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 15:20:08,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,113 INFO L138 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 597 [2024-11-21 15:20:08,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 15:20:08,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 15:20:08,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 15:20:08,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 15:20:08,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,160 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 15:20:08,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 15:20:08,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 15:20:08,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 15:20:08,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (1/1) ... [2024-11-21 15:20:08,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 15:20:08,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:20:08,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 15:20:08,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 15:20:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 15:20:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-21 15:20:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-21 15:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-21 15:20:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-21 15:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-21 15:20:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-21 15:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-21 15:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-21 15:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-21 15:20:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 15:20:08,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 15:20:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-21 15:20:08,254 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 15:20:08,374 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 15:20:08,376 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 15:20:09,131 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 15:20:09,131 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 15:20:09,926 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 15:20:09,926 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 15:20:09,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:20:09 BoogieIcfgContainer [2024-11-21 15:20:09,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 15:20:09,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 15:20:09,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 15:20:09,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 15:20:09,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 03:20:07" (1/3) ... [2024-11-21 15:20:09,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39856dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:20:09, skipping insertion in model container [2024-11-21 15:20:09,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:20:08" (2/3) ... [2024-11-21 15:20:09,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39856dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:20:09, skipping insertion in model container [2024-11-21 15:20:09,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:20:09" (3/3) ... [2024-11-21 15:20:09,935 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2024-11-21 15:20:09,948 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 15:20:09,950 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-subst.wvr.c that has 4 procedures, 38 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-21 15:20:09,950 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 15:20:10,071 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-21 15:20:10,120 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:20:10,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 15:20:10,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:20:10,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 15:20:10,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 15:20:10,235 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 15:20:10,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 15:20:10,258 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74a11735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:20:10,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-21 15:20:10,515 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:20:10,515 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:10,516 INFO L139 ounterexampleChecker]: Examining path program with hash 522769625, occurence #1 [2024-11-21 15:20:10,516 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:20:10,516 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:10,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:10,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1646438064, now seen corresponding path program 1 times [2024-11-21 15:20:10,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:10,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397269851] [2024-11-21 15:20:10,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:20:11,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:11,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397269851] [2024-11-21 15:20:11,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397269851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:20:11,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:20:11,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 15:20:11,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74618383] [2024-11-21 15:20:11,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:20:11,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:20:11,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:11,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:20:11,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:20:11,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:11,084 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:11,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) 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) [2024-11-21 15:20:11,087 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:11,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 15:20:11,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:20:11,198 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:11,198 INFO L139 ounterexampleChecker]: Examining path program with hash 837464349, occurence #1 [2024-11-21 15:20:11,198 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:20:11,198 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:11,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:11,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1209909283, now seen corresponding path program 1 times [2024-11-21 15:20:11,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:11,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127309061] [2024-11-21 15:20:11,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:11,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-21 15:20:11,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:11,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127309061] [2024-11-21 15:20:11,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127309061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:20:11,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:20:11,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 15:20:11,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875757018] [2024-11-21 15:20:11,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:20:11,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 15:20:11,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:11,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 15:20:11,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 15:20:11,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:11,474 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:11,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:20:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:11,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 15:20:11,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:20:11,590 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:11,590 INFO L139 ounterexampleChecker]: Examining path program with hash -1684257898, occurence #1 [2024-11-21 15:20:11,590 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:20:11,590 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:11,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:11,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1082571654, now seen corresponding path program 1 times [2024-11-21 15:20:11,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:11,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463798478] [2024-11-21 15:20:11,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:11,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 15:20:11,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:11,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463798478] [2024-11-21 15:20:11,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463798478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:20:11,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101860296] [2024-11-21 15:20:11,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:11,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:20:11,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:20:11,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:20:11,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 15:20:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:12,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 15:20:12,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:20:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 15:20:12,140 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:20:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 15:20:12,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101860296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 15:20:12,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 15:20:12,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-21 15:20:12,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098347014] [2024-11-21 15:20:12,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 15:20:12,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-21 15:20:12,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:12,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-21 15:20:12,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-21 15:20:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:12,177 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:12,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:20:12,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:12,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:12,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:12,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 15:20:12,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:20:12,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:20:12,530 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:12,530 INFO L139 ounterexampleChecker]: Examining path program with hash -1684257898, occurence #2 [2024-11-21 15:20:12,530 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:20:12,530 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-21 15:20:12,531 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:12,531 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-21 15:20:12,531 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:12,531 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-21 15:20:12,546 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:12,547 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-21 15:20:12,547 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:12,547 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-21 15:20:12,547 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:12,547 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-21 15:20:12,547 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:12,547 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-11-21 15:20:12,547 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:12,547 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-21 15:20:12,547 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:12,547 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:20:12,547 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:12,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash 718811163, now seen corresponding path program 2 times [2024-11-21 15:20:12,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:12,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455143757] [2024-11-21 15:20:12,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 15:20:12,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:12,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455143757] [2024-11-21 15:20:12,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455143757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:20:12,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379630413] [2024-11-21 15:20:12,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 15:20:12,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:20:12,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:20:12,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:20:12,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 15:20:13,100 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-21 15:20:13,100 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 15:20:13,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 15:20:13,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:20:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-21 15:20:13,298 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:20:13,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379630413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:20:13,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-21 15:20:13,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-21 15:20:13,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960824718] [2024-11-21 15:20:13,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:20:13,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 15:20:13,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:13,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 15:20:13,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-21 15:20:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:13,301 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:13,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2024-11-21 15:20:13,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:13,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:13,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:13,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:13,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-21 15:20:13,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:20:13,851 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:20:13,851 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:13,851 INFO L139 ounterexampleChecker]: Examining path program with hash -1990501343, occurence #1 [2024-11-21 15:20:13,851 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:20:13,851 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:13,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash -301525999, now seen corresponding path program 1 times [2024-11-21 15:20:13,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:13,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905743380] [2024-11-21 15:20:13,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:13,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 15:20:14,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:14,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905743380] [2024-11-21 15:20:14,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905743380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:20:14,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645095960] [2024-11-21 15:20:14,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:14,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:20:14,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:20:14,178 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:20:14,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 15:20:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:14,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-21 15:20:14,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:20:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 15:20:14,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:20:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-21 15:20:14,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645095960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 15:20:14,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-21 15:20:14,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-11-21 15:20:14,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918607011] [2024-11-21 15:20:14,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-21 15:20:14,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-21 15:20:14,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:14,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-21 15:20:14,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2024-11-21 15:20:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:14,579 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:14,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:20:14,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:14,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:14,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:14,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:14,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:20:14,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 15:20:14,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:20:14,999 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:20:14,999 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:14,999 INFO L139 ounterexampleChecker]: Examining path program with hash -1990501343, occurence #2 [2024-11-21 15:20:14,999 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:20:14,999 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-21 15:20:14,999 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:14,999 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-21 15:20:14,999 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:14,999 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-21 15:20:14,999 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-21 15:20:15,000 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-21 15:20:15,000 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2024-11-21 15:20:15,000 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-21 15:20:15,000 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 37 [2024-11-21 15:20:15,000 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-21 15:20:15,000 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 42 [2024-11-21 15:20:15,000 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-21 15:20:15,000 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:20:15,000 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 45 [2024-11-21 15:20:15,000 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:20:15,000 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:20:15,000 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:15,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2036985456, now seen corresponding path program 2 times [2024-11-21 15:20:15,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:15,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358655069] [2024-11-21 15:20:15,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:15,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 15:20:15,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:15,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358655069] [2024-11-21 15:20:15,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358655069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:20:15,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:20:15,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:20:15,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338613756] [2024-11-21 15:20:15,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:20:15,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:20:15,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:15,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:20:15,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:20:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:15,318 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:15,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:20:15,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:15,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:15,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:15,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:20:15,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:20:15,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 15:20:15,428 INFO L396 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)] === [2024-11-21 15:20:15,428 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:15,429 INFO L139 ounterexampleChecker]: Examining path program with hash -1893669377, occurence #1 [2024-11-21 15:20:15,429 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:20:15,429 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:15,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:15,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2058267566, now seen corresponding path program 1 times [2024-11-21 15:20:15,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:15,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925811765] [2024-11-21 15:20:15,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:15,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 15:20:15,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:15,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925811765] [2024-11-21 15:20:15,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925811765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:20:15,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:20:15,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:20:15,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681998354] [2024-11-21 15:20:15,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:20:15,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:20:15,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:15,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:20:15,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:20:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:15,713 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:15,713 INFO L472 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) [2024-11-21 15:20:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:20:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,713 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:20:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:15,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 15:20:15,843 INFO L396 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)] === [2024-11-21 15:20:15,843 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:15,843 INFO L139 ounterexampleChecker]: Examining path program with hash 1461183643, occurence #1 [2024-11-21 15:20:15,844 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:20:15,844 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:15,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:15,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1334543927, now seen corresponding path program 1 times [2024-11-21 15:20:15,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:15,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414585611] [2024-11-21 15:20:15,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:15,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 15:20:16,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:16,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414585611] [2024-11-21 15:20:16,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414585611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:20:16,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:20:16,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:20:16,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069377317] [2024-11-21 15:20:16,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:20:16,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:20:16,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 15:20:16,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:20:16,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:20:16,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:16,157 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:20:16,158 INFO L472 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) [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:16,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:16,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:20:16,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 15:20:16,284 INFO L396 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)] === [2024-11-21 15:20:16,284 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:20:16,284 INFO L139 ounterexampleChecker]: Examining path program with hash -747782447, occurence #1 [2024-11-21 15:20:16,284 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:20:16,284 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:20:16,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:20:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1755830427, now seen corresponding path program 1 times [2024-11-21 15:20:16,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 15:20:16,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253276091] [2024-11-21 15:20:16,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:16,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 15:20:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:20:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 15:20:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253276091] [2024-11-21 15:20:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253276091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-21 15:20:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908179207] [2024-11-21 15:20:29,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:20:29,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:20:29,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:20:29,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:20:29,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 15:20:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:20:30,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-21 15:20:30,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:20:32,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 15:20:32,931 INFO L378 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 463 treesize of output 791 [2024-11-21 15:20:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 15:20:36,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:20:51,473 WARN L286 SmtUtils]: Spent 10.29s on a formula simplification that was a NOOP. DAG size: 1177 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-21 15:20:51,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 15:20:51,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 23 select indices, 23 select index equivalence classes, 0 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 253 case distinctions, treesize of input 775 treesize of output 3912 [2024-11-21 15:29:45,850 WARN L249 Executor]: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-21 15:29:45,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-21 15:29:45,851 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-21 15:29:45,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 15:29:46,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:46,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-11-21 15:29:46,065 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:318) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 79 more [2024-11-21 15:29:46,072 INFO L158 Benchmark]: Toolchain (without parser) took 578358.09ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 93.1MB in the beginning and 899.8MB in the end (delta: -806.7MB). Peak memory consumption was 851.6MB. Max. memory is 16.1GB. [2024-11-21 15:29:46,072 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 63.2MB in the beginning and 63.1MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 15:29:46,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.18ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 77.8MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-21 15:29:46,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.42ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.0MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 15:29:46,073 INFO L158 Benchmark]: Boogie Preprocessor took 74.44ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.0MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-21 15:29:46,075 INFO L158 Benchmark]: RCFGBuilder took 1734.13ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 71.0MB in the beginning and 127.5MB in the end (delta: -56.5MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2024-11-21 15:29:46,076 INFO L158 Benchmark]: TraceAbstraction took 576142.59ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 126.4MB in the beginning and 899.8MB in the end (delta: -773.4MB). Peak memory consumption was 835.0MB. Max. memory is 16.1GB. [2024-11-21 15:29:46,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 63.2MB in the beginning and 63.1MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.18ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 77.8MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.42ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.0MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 74.44ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.0MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1734.13ms. Allocated memory was 117.4MB in the beginning and 167.8MB in the end (delta: 50.3MB). Free memory was 71.0MB in the beginning and 127.5MB in the end (delta: -56.5MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. * TraceAbstraction took 576142.59ms. Allocated memory was 167.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 126.4MB in the beginning and 899.8MB in the end (delta: -773.4MB). Peak memory consumption was 835.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --traceabstraction.commutativity.condition.synthesis NECESSARY_AND_SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1f73d82-m [2024-11-21 15:29:48,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 15:29:48,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-11-21 15:29:48,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 15:29:48,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 15:29:48,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 15:29:48,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 15:29:48,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 15:29:48,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 15:29:48,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 15:29:48,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 15:29:48,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 15:29:48,254 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 15:29:48,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 15:29:48,256 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-21 15:29:48,257 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-21 15:29:48,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 15:29:48,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 15:29:48,257 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-21 15:29:48,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 15:29:48,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 15:29:48,257 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 15:29:48,257 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 15:29:48,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 15:29:48,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 15:29:48,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 15:29:48,258 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2024-11-21 15:29:48,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 15:29:48,259 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-21 15:29:48,259 INFO L153 SettingsManager]: * Commutativity condition synthesis=SUFFICIENT [2024-11-21 15:29:48,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 15:29:48,259 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-21 15:29:48,259 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-21 15:29:48,259 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-21 15:29:48,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 15:29:48,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-21 15:29:48,260 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-21 15:29:48,260 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-21 15:29:48,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NECESSARY_AND_SUFFICIENT [2024-11-21 15:29:48,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 15:29:48,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 15:29:48,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 15:29:48,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 15:29:48,568 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 15:29:48,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2024-11-21 15:29:49,852 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/b31144a2b/ee03c34659cc43db876335edaa80a055/FLAG71752c916 [2024-11-21 15:29:50,077 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 15:29:50,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2024-11-21 15:29:50,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/b31144a2b/ee03c34659cc43db876335edaa80a055/FLAG71752c916 [2024-11-21 15:29:50,102 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/b31144a2b/ee03c34659cc43db876335edaa80a055 [2024-11-21 15:29:50,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 15:29:50,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 15:29:50,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 15:29:50,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 15:29:50,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 15:29:50,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b38561e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50, skipping insertion in model container [2024-11-21 15:29:50,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,136 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 15:29:50,335 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2024-11-21 15:29:50,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 15:29:50,366 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 15:29:50,420 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2024-11-21 15:29:50,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 15:29:50,447 INFO L204 MainTranslator]: Completed translation [2024-11-21 15:29:50,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50 WrapperNode [2024-11-21 15:29:50,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 15:29:50,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 15:29:50,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 15:29:50,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 15:29:50,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,527 INFO L138 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 579 [2024-11-21 15:29:50,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 15:29:50,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 15:29:50,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 15:29:50,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 15:29:50,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,576 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 15:29:50,604 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 15:29:50,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 15:29:50,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 15:29:50,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (1/1) ... [2024-11-21 15:29:50,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-21 15:29:50,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:50,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-21 15:29:50,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-21 15:29:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 15:29:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-21 15:29:50,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-21 15:29:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-21 15:29:50,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-21 15:29:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-21 15:29:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-21 15:29:50,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-21 15:29:50,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-21 15:29:50,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-21 15:29:50,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 15:29:50,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 15:29:50,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-21 15:29:50,674 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-21 15:29:50,801 INFO L234 CfgBuilder]: Building ICFG [2024-11-21 15:29:50,802 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 15:29:51,675 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-21 15:29:51,675 INFO L283 CfgBuilder]: Performing block encoding [2024-11-21 15:29:52,485 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 15:29:52,485 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-21 15:29:52,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:29:52 BoogieIcfgContainer [2024-11-21 15:29:52,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 15:29:52,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 15:29:52,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 15:29:52,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 15:29:52,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 03:29:50" (1/3) ... [2024-11-21 15:29:52,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1491e058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:29:52, skipping insertion in model container [2024-11-21 15:29:52,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 03:29:50" (2/3) ... [2024-11-21 15:29:52,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1491e058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 03:29:52, skipping insertion in model container [2024-11-21 15:29:52,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 03:29:52" (3/3) ... [2024-11-21 15:29:52,494 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2024-11-21 15:29:52,507 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 15:29:52,508 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-subst.wvr.c that has 4 procedures, 38 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-11-21 15:29:52,508 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-21 15:29:52,624 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-21 15:29:52,673 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:29:52,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-21 15:29:52,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:52,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-21 15:29:52,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-21 15:29:52,792 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-21 15:29:52,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-11-21 15:29:52,815 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dfdf974, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 15:29:52,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-21 15:29:53,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:29:53,086 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:53,087 INFO L139 ounterexampleChecker]: Examining path program with hash -473241407, occurence #1 [2024-11-21 15:29:53,087 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:29:53,087 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:53,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:53,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1619166640, now seen corresponding path program 1 times [2024-11-21 15:29:53,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:53,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135435782] [2024-11-21 15:29:53,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:53,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:53,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:53,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:53,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-21 15:29:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:53,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-21 15:29:53,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:29:53,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:29:53,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:53,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135435782] [2024-11-21 15:29:53,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135435782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:29:53,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:29:53,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 15:29:53,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598578064] [2024-11-21 15:29:53,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:29:53,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-21 15:29:53,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:53,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-21 15:29:53,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-21 15:29:53,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:53,391 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:53,392 INFO L472 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) [2024-11-21 15:29:53,392 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:53,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-21 15:29:53,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:53,698 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:29:53,698 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:53,698 INFO L139 ounterexampleChecker]: Examining path program with hash -158546683, occurence #1 [2024-11-21 15:29:53,698 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:29:53,698 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:53,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:53,700 INFO L85 PathProgramCache]: Analyzing trace with hash -731847460, now seen corresponding path program 1 times [2024-11-21 15:29:53,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:53,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656731532] [2024-11-21 15:29:53,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:53,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:53,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:53,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:53,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-21 15:29:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:53,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:29:53,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:29:54,016 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:29:54,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:54,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656731532] [2024-11-21 15:29:54,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656731532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:29:54,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:29:54,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 15:29:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464573019] [2024-11-21 15:29:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:29:54,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 15:29:54,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:54,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 15:29:54,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-21 15:29:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,021 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:54,021 INFO L472 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) [2024-11-21 15:29:54,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:54,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-21 15:29:54,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:54,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:29:54,382 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:54,382 INFO L139 ounterexampleChecker]: Examining path program with hash 119077196, occurence #1 [2024-11-21 15:29:54,382 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:29:54,382 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:54,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1128689993, now seen corresponding path program 1 times [2024-11-21 15:29:54,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:54,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445015356] [2024-11-21 15:29:54,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:54,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:54,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:54,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:54,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-21 15:29:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:54,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:29:54,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 15:29:54,676 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:29:54,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:54,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445015356] [2024-11-21 15:29:54,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445015356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:29:54,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:29:54,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:29:54,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269413007] [2024-11-21 15:29:54,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:29:54,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:29:54,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:54,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:29:54,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:29:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,679 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:54,680 INFO L472 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) [2024-11-21 15:29:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:54,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:54,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-21 15:29:55,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:55,009 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:29:55,009 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:55,010 INFO L139 ounterexampleChecker]: Examining path program with hash 119077196, occurence #2 [2024-11-21 15:29:55,010 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:29:55,010 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2024-11-21 15:29:55,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-21 15:29:55,011 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,011 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-21 15:29:55,036 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2024-11-21 15:29:55,037 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-11-21 15:29:55,037 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-21 15:29:55,037 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,037 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2024-11-21 15:29:55,037 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,038 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-21 15:29:55,038 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,038 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-21 15:29:55,038 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,038 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:29:55,038 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:55,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:55,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1246912467, now seen corresponding path program 1 times [2024-11-21 15:29:55,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:55,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497948426] [2024-11-21 15:29:55,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:55,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:55,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:55,043 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:55,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-21 15:29:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:55,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 15:29:55,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:55,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 15:29:55,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:29:55,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:55,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497948426] [2024-11-21 15:29:55,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497948426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:29:55,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:29:55,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 15:29:55,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940196760] [2024-11-21 15:29:55,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:29:55,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:29:55,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:55,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:29:55,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:29:55,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:55,285 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:55,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) 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) [2024-11-21 15:29:55,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:55,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:55,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:55,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:55,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:55,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-21 15:29:55,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:55,606 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:29:55,606 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:55,606 INFO L139 ounterexampleChecker]: Examining path program with hash 119077196, occurence #3 [2024-11-21 15:29:55,606 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:29:55,606 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-11-21 15:29:55,606 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-11-21 15:29:55,607 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-11-21 15:29:55,607 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 11 [2024-11-21 15:29:55,607 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-21 15:29:55,607 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2024-11-21 15:29:55,607 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2024-11-21 15:29:55,607 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-21 15:29:55,607 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:55,607 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-21 15:29:55,607 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:55,607 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:29:55,607 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:55,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:55,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1634570922, now seen corresponding path program 1 times [2024-11-21 15:29:55,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:55,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886740550] [2024-11-21 15:29:55,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:55,612 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:55,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-21 15:29:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:55,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-21 15:29:55,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-21 15:29:55,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:29:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-21 15:29:55,880 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:55,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886740550] [2024-11-21 15:29:55,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886740550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 15:29:55,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:29:55,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-21 15:29:55,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907575366] [2024-11-21 15:29:55,881 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-21 15:29:55,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-21 15:29:55,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:55,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-21 15:29:55,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-21 15:29:55,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:55,882 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:55,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:29:55,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:55,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:55,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:55,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:55,882 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:56,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:56,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:56,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:56,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:56,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-21 15:29:56,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:56,317 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-21 15:29:56,317 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:56,317 INFO L139 ounterexampleChecker]: Examining path program with hash 119077196, occurence #4 [2024-11-21 15:29:56,317 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:29:56,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2024-11-21 15:29:56,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:56,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-11-21 15:29:56,317 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:56,317 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-11-21 15:29:56,318 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:56,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2024-11-21 15:29:56,318 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:56,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2024-11-21 15:29:56,318 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:56,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-11-21 15:29:56,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:56,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2024-11-21 15:29:56,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:56,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2024-11-21 15:29:56,318 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:56,318 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 36 [2024-11-21 15:29:56,318 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:56,318 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:29:56,318 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:56,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:56,319 INFO L85 PathProgramCache]: Analyzing trace with hash -710830445, now seen corresponding path program 2 times [2024-11-21 15:29:56,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:56,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650738192] [2024-11-21 15:29:56,319 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 15:29:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:56,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:56,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:56,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-21 15:29:56,490 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-21 15:29:56,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 15:29:56,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-21 15:29:56,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-21 15:29:56,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:29:56,647 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:56,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650738192] [2024-11-21 15:29:56,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650738192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:29:56,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:29:56,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 15:29:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510489072] [2024-11-21 15:29:56,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:29:56,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 15:29:56,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:56,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 15:29:56,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-21 15:29:56,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:56,649 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:56,649 INFO L472 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) [2024-11-21 15:29:56,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:56,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:56,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:56,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:56,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:56,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:57,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:57,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:57,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:57,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:57,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:57,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:29:57,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-21 15:29:57,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:57,315 INFO L396 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)] === [2024-11-21 15:29:57,315 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:57,315 INFO L139 ounterexampleChecker]: Examining path program with hash -488853146, occurence #1 [2024-11-21 15:29:57,316 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:29:57,316 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:57,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:57,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1571144811, now seen corresponding path program 1 times [2024-11-21 15:29:57,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:57,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612502664] [2024-11-21 15:29:57,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:57,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:57,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:57,319 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:57,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-21 15:29:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:57,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:29:57,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-21 15:29:57,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:29:57,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:57,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612502664] [2024-11-21 15:29:57,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612502664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:29:57,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:29:57,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:29:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539049823] [2024-11-21 15:29:57,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:29:57,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:29:57,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:57,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:29:57,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:29:57,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:57,581 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:57,582 INFO L472 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) [2024-11-21 15:29:57,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:57,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:57,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:57,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:57,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:57,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:29:57,583 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:57,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:57,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:29:57,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:57,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-21 15:29:57,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:57,955 INFO L396 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)] === [2024-11-21 15:29:57,955 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:57,955 INFO L139 ounterexampleChecker]: Examining path program with hash 971347571, occurence #1 [2024-11-21 15:29:57,956 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:29:57,956 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:57,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:57,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1308077370, now seen corresponding path program 1 times [2024-11-21 15:29:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:57,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [594707975] [2024-11-21 15:29:57,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:57,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:57,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:57,960 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:57,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-21 15:29:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:58,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-21 15:29:58,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-21 15:29:58,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-21 15:29:58,217 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:58,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594707975] [2024-11-21 15:29:58,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594707975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 15:29:58,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 15:29:58,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 15:29:58,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585944831] [2024-11-21 15:29:58,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 15:29:58,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 15:29:58,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:58,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 15:29:58,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 15:29:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:58,219 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:58,219 INFO L472 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) [2024-11-21 15:29:58,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:58,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:58,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:58,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:29:58,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:29:58,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-21 15:29:58,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:58,582 INFO L396 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)] === [2024-11-21 15:29:58,582 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:58,582 INFO L139 ounterexampleChecker]: Examining path program with hash -1197102993, occurence #1 [2024-11-21 15:29:58,582 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-21 15:29:58,582 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:58,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2091274078, now seen corresponding path program 1 times [2024-11-21 15:29:58,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:58,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008174905] [2024-11-21 15:29:58,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 15:29:58,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:58,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:58,584 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:58,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-21 15:29:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 15:29:58,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-21 15:29:58,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:29:58,894 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-21 15:29:58,895 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:29:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-21 15:29:58,995 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-21 15:29:58,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008174905] [2024-11-21 15:29:58,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008174905] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-21 15:29:58,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-21 15:29:58,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-21 15:29:58,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59486673] [2024-11-21 15:29:58,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-21 15:29:58,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-21 15:29:58,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-21 15:29:58,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-21 15:29:58,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-21 15:29:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:58,997 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-21 15:29:58,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:58,997 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 15:29:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-21 15:29:59,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-21 15:29:59,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:59,711 INFO L396 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)] === [2024-11-21 15:29:59,711 INFO L303 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-21 15:29:59,711 INFO L139 ounterexampleChecker]: Examining path program with hash -1197102993, occurence #2 [2024-11-21 15:29:59,712 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-11-21 15:29:59,712 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2024-11-21 15:29:59,712 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2024-11-21 15:29:59,712 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 39 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 48 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,712 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2024-11-21 15:29:59,712 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-11-21 15:29:59,713 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 51 [2024-11-21 15:29:59,713 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-11-21 15:29:59,713 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-11-21 15:29:59,713 INFO L314 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-21 15:29:59,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 15:29:59,713 INFO L85 PathProgramCache]: Analyzing trace with hash 848072165, now seen corresponding path program 2 times [2024-11-21 15:29:59,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-21 15:29:59,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131360319] [2024-11-21 15:29:59,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-21 15:29:59,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-21 15:29:59,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-11-21 15:29:59,717 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-21 15:29:59,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-21 15:29:59,984 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-21 15:29:59,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-21 15:29:59,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-21 15:30:00,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-21 15:30:04,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-21 15:30:04,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 377 treesize of output 409 [2024-11-21 15:30:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-21 15:30:06,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-21 15:31:00,418 WARN L286 SmtUtils]: Spent 37.67s on a formula simplification. DAG size of input: 1239 DAG size of output: 1035 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-21 15:31:00,419 INFO L349 Elim1Store]: treesize reduction 748, result has 78.5 percent of original size [2024-11-21 15:31:00,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 1246 treesize of output 3716 Killed by 15