./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 42d87675 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-24 23:31:27,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 23:31:27,700 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 23:31:27,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 23:31:27,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 23:31:27,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 23:31:27,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 23:31:27,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 23:31:27,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 23:31:27,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 23:31:27,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 23:31:27,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 23:31:27,732 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 23:31:27,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 23:31:27,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 23:31:27,732 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 23:31:27,733 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 23:31:27,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 23:31:27,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:31:27,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 23:31:27,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 23:31:27,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 23:31:27,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 23:31:27,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:31:27,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 23:31:27,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 23:31:27,734 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 23:31:27,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-04-24 23:31:27,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 23:31:27,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 23:31:27,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 23:31:27,934 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 23:31:27,934 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 23:31:27,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2025-04-24 23:31:29,246 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ab2b55a45/4ba1547534284576bb55d6165784f455/FLAG14c23f821 [2025-04-24 23:31:29,442 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 23:31:29,442 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2025-04-24 23:31:29,447 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ab2b55a45/4ba1547534284576bb55d6165784f455/FLAG14c23f821 [2025-04-24 23:31:30,246 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/ab2b55a45/4ba1547534284576bb55d6165784f455 [2025-04-24 23:31:30,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 23:31:30,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 23:31:30,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 23:31:30,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 23:31:30,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 23:31:30,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3542fd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30, skipping insertion in model container [2025-04-24 23:31:30,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,269 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 23:31:30,399 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2025-04-24 23:31:30,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 23:31:30,417 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 23:31:30,442 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2025-04-24 23:31:30,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 23:31:30,453 INFO L204 MainTranslator]: Completed translation [2025-04-24 23:31:30,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30 WrapperNode [2025-04-24 23:31:30,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 23:31:30,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 23:31:30,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 23:31:30,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 23:31:30,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,486 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 129 [2025-04-24 23:31:30,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 23:31:30,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 23:31:30,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 23:31:30,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 23:31:30,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,508 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 23:31:30,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 23:31:30,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 23:31:30,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 23:31:30,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (1/1) ... [2025-04-24 23:31:30,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:31:30,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:31:30,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 23:31:30,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 23:31:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 23:31:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 23:31:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 23:31:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 23:31:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 23:31:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-24 23:31:30,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-24 23:31:30,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 23:31:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-24 23:31:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 23:31:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 23:31:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 23:31:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 23:31:30,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 23:31:30,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-24 23:31:30,570 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 23:31:30,661 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 23:31:30,662 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 23:31:30,902 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 23:31:30,902 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 23:31:31,061 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 23:31:31,061 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 23:31:31,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 11:31:31 BoogieIcfgContainer [2025-04-24 23:31:31,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 23:31:31,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 23:31:31,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 23:31:31,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 23:31:31,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 11:31:30" (1/3) ... [2025-04-24 23:31:31,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da6d7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 11:31:31, skipping insertion in model container [2025-04-24 23:31:31,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:31:30" (2/3) ... [2025-04-24 23:31:31,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da6d7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 11:31:31, skipping insertion in model container [2025-04-24 23:31:31,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 11:31:31" (3/3) ... [2025-04-24 23:31:31,067 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2025-04-24 23:31:31,077 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 23:31:31,078 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-sum.wvr.c that has 4 procedures, 33 locations, 36 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-24 23:31:31,079 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 23:31:31,116 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-24 23:31:31,143 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 23:31:31,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 23:31:31,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:31:31,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 23:31:31,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 23:31:31,206 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 23:31:31,215 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 23:31:31,221 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7ecfcf85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 23:31:31,222 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-24 23:31:31,347 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:31:31,350 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1656455225, now seen corresponding path program 1 times [2025-04-24 23:31:31,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:31,356 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258137107] [2025-04-24 23:31:31,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:31:31,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:31,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-24 23:31:31,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-24 23:31:31,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:31:31,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:31:31,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:31,809 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258137107] [2025-04-24 23:31:31,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258137107] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:31:31,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:31:31,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 23:31:31,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493579115] [2025-04-24 23:31:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:31:31,815 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 23:31:31,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:31,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 23:31:31,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-24 23:31:31,829 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:31,830 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:31,831 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:31:31,831 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:31,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:31,951 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 23:31:31,952 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:31:31,952 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:31,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1422748963, now seen corresponding path program 1 times [2025-04-24 23:31:31,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:31,953 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435680508] [2025-04-24 23:31:31,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:31:31,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:31,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-24 23:31:31,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 23:31:31,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:31:31,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:31:32,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:32,169 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435680508] [2025-04-24 23:31:32,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435680508] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:31:32,169 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157661513] [2025-04-24 23:31:32,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:31:32,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:31:32,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:31:32,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:31:32,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 23:31:32,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-24 23:31:32,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 23:31:32,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:31:32,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:32,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 23:31:32,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:31:32,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:31:32,431 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:31:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:31:32,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157661513] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:31:32,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 23:31:32,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-04-24 23:31:32,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401653734] [2025-04-24 23:31:32,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 23:31:32,511 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-24 23:31:32,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:32,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-24 23:31:32,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-04-24 23:31:32,513 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:32,513 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:32,514 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:31:32,514 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:32,514 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:32,675 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:32,675 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:32,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-24 23:31:32,882 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-04-24 23:31:32,882 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:31:32,883 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:32,883 INFO L85 PathProgramCache]: Analyzing trace with hash 2004052423, now seen corresponding path program 2 times [2025-04-24 23:31:32,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:32,883 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506070110] [2025-04-24 23:31:32,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:31:32,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:32,895 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 2 equivalence classes. [2025-04-24 23:31:32,906 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 46 statements. [2025-04-24 23:31:32,906 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 23:31:32,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-24 23:31:33,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:33,013 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506070110] [2025-04-24 23:31:33,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506070110] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:31:33,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:31:33,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-24 23:31:33,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768900288] [2025-04-24 23:31:33,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:31:33,014 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 23:31:33,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:33,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 23:31:33,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-04-24 23:31:33,014 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:33,016 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:33,017 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:31:33,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:33,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:33,017 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:33,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:33,137 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:33,138 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:31:33,138 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-24 23:31:33,140 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:31:33,140 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1086210327, now seen corresponding path program 3 times [2025-04-24 23:31:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:33,140 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613906414] [2025-04-24 23:31:33,140 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:31:33,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:33,153 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 50 statements into 3 equivalence classes. [2025-04-24 23:31:33,170 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 40 of 50 statements. [2025-04-24 23:31:33,170 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 23:31:33,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-24 23:31:33,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:33,395 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613906414] [2025-04-24 23:31:33,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613906414] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:31:33,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:31:33,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-24 23:31:33,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386182097] [2025-04-24 23:31:33,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:31:33,397 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-24 23:31:33,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:33,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-24 23:31:33,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-04-24 23:31:33,398 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:33,399 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:33,399 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:31:33,399 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:33,399 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:33,399 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:31:33,399 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:33,709 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:33,709 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:33,709 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:31:33,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:33,710 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-24 23:31:33,710 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:31:33,710 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:33,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1320245806, now seen corresponding path program 4 times [2025-04-24 23:31:33,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:33,710 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081426293] [2025-04-24 23:31:33,711 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:31:33,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:33,722 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 62 statements into 2 equivalence classes. [2025-04-24 23:31:33,730 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 55 of 62 statements. [2025-04-24 23:31:33,730 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 23:31:33,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-04-24 23:31:33,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:33,812 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081426293] [2025-04-24 23:31:33,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081426293] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:31:33,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:31:33,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-24 23:31:33,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914288588] [2025-04-24 23:31:33,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:31:33,812 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-24 23:31:33,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 23:31:33,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-24 23:31:33,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-24 23:31:33,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:33,813 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:31:33,813 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:31:33,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:33,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:33,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:31:33,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:33,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:31:33,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:31:33,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 23:31:33,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:31:33,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:31:33,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:31:33,951 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-24 23:31:33,951 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:31:33,952 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:31:33,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1805633923, now seen corresponding path program 5 times [2025-04-24 23:31:33,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 23:31:33,952 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734444366] [2025-04-24 23:31:33,952 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:31:33,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 23:31:33,964 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 47 statements into 3 equivalence classes. [2025-04-24 23:31:34,038 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 23:31:34,039 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-24 23:31:34,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-24 23:31:35,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 23:31:35,513 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734444366] [2025-04-24 23:31:35,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734444366] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 23:31:35,513 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306391942] [2025-04-24 23:31:35,513 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:31:35,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:31:35,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:31:35,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:31:35,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 23:31:35,575 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 47 statements into 3 equivalence classes. [2025-04-24 23:31:35,663 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 23:31:35,663 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-24 23:31:35,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:31:35,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-04-24 23:31:35,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:31:36,158 INFO L325 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2025-04-24 23:31:36,158 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 54 [2025-04-24 23:31:36,927 INFO L325 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2025-04-24 23:31:36,928 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 121 treesize of output 144 [2025-04-24 23:31:49,793 WARN L286 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 1025 DAG size of output: 897 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-04-24 23:31:49,794 INFO L325 Elim1Store]: treesize reduction 800, result has 73.6 percent of original size [2025-04-24 23:31:49,795 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 37 select indices, 37 select index equivalence classes, 3 disjoint index pairs (out of 666 index pairs), introduced 37 new quantified variables, introduced 666 case distinctions, treesize of input 751 treesize of output 2601 [2025-04-24 23:34:15,385 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-04-24 23:34:15,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2025-04-24 23:34:15,386 WARN L310 FreeRefinementEngine]: Global settings require throwing the following exception [2025-04-24 23:34:15,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-24 23:34:15,587 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:15,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-24 23:34:15,593 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/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:589) 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:726) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:241) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:191) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:285) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:56) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:427) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:166) 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) ... 69 more [2025-04-24 23:34:15,599 INFO L158 Benchmark]: Toolchain (without parser) took 165350.10ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 152.8MB in the beginning and 680.5MB in the end (delta: -527.7MB). Peak memory consumption was 691.4MB. Max. memory is 16.1GB. [2025-04-24 23:34:15,599 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 23:34:15,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.87ms. Allocated memory is still 201.3MB. Free memory was 152.8MB in the beginning and 139.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-24 23:34:15,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.87ms. Allocated memory is still 201.3MB. Free memory was 139.0MB in the beginning and 136.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 23:34:15,600 INFO L158 Benchmark]: Boogie Preprocessor took 31.54ms. Allocated memory is still 201.3MB. Free memory was 136.7MB in the beginning and 135.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 23:34:15,600 INFO L158 Benchmark]: RCFGBuilder took 539.09ms. Allocated memory is still 201.3MB. Free memory was 135.6MB in the beginning and 85.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-04-24 23:34:15,600 INFO L158 Benchmark]: TraceAbstraction took 164535.58ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 85.3MB in the beginning and 680.5MB in the end (delta: -595.2MB). Peak memory consumption was 624.3MB. Max. memory is 16.1GB. [2025-04-24 23:34:15,601 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.87ms. Allocated memory is still 201.3MB. Free memory was 152.8MB in the beginning and 139.0MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.87ms. Allocated memory is still 201.3MB. Free memory was 139.0MB in the beginning and 136.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.54ms. Allocated memory is still 201.3MB. Free memory was 136.7MB in the beginning and 135.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 539.09ms. Allocated memory is still 201.3MB. Free memory was 135.6MB in the beginning and 85.3MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 164535.58ms. Allocated memory was 201.3MB in the beginning and 1.1GB in the end (delta: 939.5MB). Free memory was 85.3MB in the beginning and 680.5MB in the end (delta: -595.2MB). Peak memory consumption was 624.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-42d8767-m [2025-04-24 23:34:17,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 23:34:17,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-04-24 23:34:17,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 23:34:17,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 23:34:17,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 23:34:17,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 23:34:17,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 23:34:17,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 23:34:17,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 23:34:17,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 23:34:17,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 23:34:17,404 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:34:17,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 23:34:17,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:34:17,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 23:34:17,406 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-04-24 23:34:17,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 23:34:17,406 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 23:34:17,406 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 23:34:17,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 23:34:17,407 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-24 23:34:17,407 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 23:34:17,407 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-24 23:34:17,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 23:34:17,407 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 23:34:17,407 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 23:34:17,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-04-24 23:34:17,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 23:34:17,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 23:34:17,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 23:34:17,636 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 23:34:17,638 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 23:34:17,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2025-04-24 23:34:19,555 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0d01f341d/45df41237eeb46e2b81c4181ff4e6c86/FLAGb26764fd4 [2025-04-24 23:34:19,739 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 23:34:19,740 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2025-04-24 23:34:19,747 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0d01f341d/45df41237eeb46e2b81c4181ff4e6c86/FLAGb26764fd4 [2025-04-24 23:34:20,557 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0d01f341d/45df41237eeb46e2b81c4181ff4e6c86 [2025-04-24 23:34:20,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 23:34:20,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 23:34:20,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 23:34:20,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 23:34:20,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 23:34:20,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e630569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20, skipping insertion in model container [2025-04-24 23:34:20,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 23:34:20,711 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2025-04-24 23:34:20,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 23:34:20,727 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 23:34:20,759 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2025-04-24 23:34:20,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 23:34:20,781 INFO L204 MainTranslator]: Completed translation [2025-04-24 23:34:20,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20 WrapperNode [2025-04-24 23:34:20,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 23:34:20,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 23:34:20,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 23:34:20,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 23:34:20,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,811 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 128 [2025-04-24 23:34:20,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 23:34:20,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 23:34:20,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 23:34:20,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 23:34:20,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,825 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,834 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,839 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 23:34:20,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 23:34:20,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 23:34:20,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 23:34:20,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (1/1) ... [2025-04-24 23:34:20,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 23:34:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:20,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 23:34:20,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 23:34:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-24 23:34:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-24 23:34:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-24 23:34:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 23:34:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 23:34:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-04-24 23:34:20,911 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 23:34:20,980 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 23:34:20,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 23:34:21,280 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 23:34:21,280 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 23:34:21,514 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 23:34:21,516 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 23:34:21,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 11:34:21 BoogieIcfgContainer [2025-04-24 23:34:21,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 23:34:21,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 23:34:21,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 23:34:21,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 23:34:21,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 11:34:20" (1/3) ... [2025-04-24 23:34:21,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f95693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 11:34:21, skipping insertion in model container [2025-04-24 23:34:21,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 11:34:20" (2/3) ... [2025-04-24 23:34:21,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f95693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 11:34:21, skipping insertion in model container [2025-04-24 23:34:21,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 11:34:21" (3/3) ... [2025-04-24 23:34:21,526 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2025-04-24 23:34:21,536 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 23:34:21,538 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-sum.wvr.c that has 4 procedures, 33 locations, 36 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-24 23:34:21,538 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 23:34:21,579 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-24 23:34:21,611 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 23:34:21,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 23:34:21,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:21,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-24 23:34:21,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-24 23:34:21,680 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 23:34:21,687 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 23:34:21,691 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@259f7a0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 23:34:21,692 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-24 23:34:21,874 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:21,877 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:21,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1908562631, now seen corresponding path program 1 times [2025-04-24 23:34:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:21,884 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519940732] [2025-04-24 23:34:21,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:34:21,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:21,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:21,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:21,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 23:34:21,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-04-24 23:34:21,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-04-24 23:34:21,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:34:21,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:22,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-24 23:34:22,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 23:34:22,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 23:34:22,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:22,132 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519940732] [2025-04-24 23:34:22,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519940732] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:34:22,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:34:22,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-24 23:34:22,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950024130] [2025-04-24 23:34:22,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:34:22,139 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-24 23:34:22,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:22,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-24 23:34:22,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-24 23:34:22,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:22,152 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:22,153 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:34:22,153 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:22,314 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:22,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-24 23:34:22,514 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:22,515 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:22,515 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash 918399585, now seen corresponding path program 1 times [2025-04-24 23:34:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:22,515 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254934596] [2025-04-24 23:34:22,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:34:22,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:22,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:22,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:22,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 23:34:22,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-04-24 23:34:22,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-04-24 23:34:22,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:34:22,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:22,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-04-24 23:34:22,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:22,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:34:22,811 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:34:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-24 23:34:22,912 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:22,912 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254934596] [2025-04-24 23:34:22,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254934596] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:34:22,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:34:22,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-04-24 23:34:22,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588955542] [2025-04-24 23:34:22,912 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:34:22,913 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-24 23:34:22,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:22,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-24 23:34:22,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-04-24 23:34:22,914 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:22,914 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:22,914 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:34:22,915 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:22,915 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:23,206 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:23,208 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:23,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-24 23:34:23,408 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:23,409 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:23,409 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 727331847, now seen corresponding path program 2 times [2025-04-24 23:34:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:23,409 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554765273] [2025-04-24 23:34:23,409 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:34:23,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:23,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:23,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:23,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 23:34:23,474 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 2 equivalence classes. [2025-04-24 23:34:23,501 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 46 statements. [2025-04-24 23:34:23,501 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-24 23:34:23,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:23,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-24 23:34:23,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-24 23:34:23,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-24 23:34:23,679 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:23,679 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554765273] [2025-04-24 23:34:23,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554765273] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 23:34:23,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 23:34:23,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-24 23:34:23,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398577874] [2025-04-24 23:34:23,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:34:23,680 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-24 23:34:23,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:23,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-24 23:34:23,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-04-24 23:34:23,680 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:23,680 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:23,680 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:34:23,681 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:23,681 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:23,681 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:23,898 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:23,898 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:23,898 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:23,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-24 23:34:24,099 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:24,099 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:24,100 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:24,100 INFO L85 PathProgramCache]: Analyzing trace with hash 842561705, now seen corresponding path program 3 times [2025-04-24 23:34:24,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:24,100 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1601551027] [2025-04-24 23:34:24,100 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:34:24,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:24,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:24,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:24,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 23:34:24,167 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 50 statements into 3 equivalence classes. [2025-04-24 23:34:24,209 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 40 of 50 statements. [2025-04-24 23:34:24,209 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-04-24 23:34:24,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:24,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-04-24 23:34:24,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-24 23:34:24,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:34:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-04-24 23:34:25,011 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:25,011 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601551027] [2025-04-24 23:34:25,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601551027] provided 1 perfect and 1 imperfect interpolant sequences [2025-04-24 23:34:25,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-24 23:34:25,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2025-04-24 23:34:25,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914008941] [2025-04-24 23:34:25,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 23:34:25,011 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-24 23:34:25,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:25,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-24 23:34:25,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2025-04-24 23:34:25,012 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:25,012 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:25,012 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:34:25,012 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:25,012 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:25,012 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:25,012 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:26,281 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:26,282 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:26,282 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:26,282 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 23:34:26,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-24 23:34:26,487 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:26,487 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:26,488 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1417959652, now seen corresponding path program 4 times [2025-04-24 23:34:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:26,488 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695310867] [2025-04-24 23:34:26,488 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:34:26,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:26,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:26,490 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:26,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-24 23:34:26,545 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-04-24 23:34:26,578 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 56 of 59 statements. [2025-04-24 23:34:26,578 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 23:34:26,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:26,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-24 23:34:26,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:26,916 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-24 23:34:26,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:34:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-24 23:34:27,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:27,582 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695310867] [2025-04-24 23:34:27,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695310867] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:34:27,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:34:27,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-04-24 23:34:27,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919664293] [2025-04-24 23:34:27,583 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:34:27,583 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-04-24 23:34:27,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:27,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-04-24 23:34:27,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2025-04-24 23:34:27,584 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:27,584 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:27,584 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:34:27,584 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:27,585 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:27,585 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:27,585 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 23:34:27,585 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:31,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:31,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:31,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:31,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 23:34:31,495 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:34:31,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-24 23:34:31,696 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:31,696 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:31,697 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:31,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1083650735, now seen corresponding path program 5 times [2025-04-24 23:34:31,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:31,697 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718265273] [2025-04-24 23:34:31,697 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:34:31,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:31,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:31,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:31,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-24 23:34:31,761 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 95 statements into 6 equivalence classes. [2025-04-24 23:34:49,655 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 95 of 95 statements. [2025-04-24 23:34:49,655 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-04-24 23:34:49,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:49,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-04-24 23:34:49,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 62 proven. 39 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-04-24 23:34:49,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:34:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-04-24 23:34:50,422 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:50,422 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718265273] [2025-04-24 23:34:50,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718265273] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:34:50,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:34:50,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2025-04-24 23:34:50,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515493560] [2025-04-24 23:34:50,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:34:50,422 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-24 23:34:50,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:50,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-24 23:34:50,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2025-04-24 23:34:50,423 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:50,423 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:50,423 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:34:50,423 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:50,423 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:50,423 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:50,423 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 23:34:50,423 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:34:50,423 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:50,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:50,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:50,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:50,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-24 23:34:50,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:34:50,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:34:50,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-24 23:34:51,151 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:51,152 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:51,152 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:51,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1658645521, now seen corresponding path program 6 times [2025-04-24 23:34:51,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:51,153 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880155878] [2025-04-24 23:34:51,153 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 23:34:51,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:51,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:51,155 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:51,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-24 23:34:51,220 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 101 statements into 6 equivalence classes. [2025-04-24 23:34:51,314 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 62 of 101 statements. [2025-04-24 23:34:51,314 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-24 23:34:51,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:51,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-24 23:34:51,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-04-24 23:34:51,706 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:34:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-04-24 23:34:52,068 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:52,068 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880155878] [2025-04-24 23:34:52,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880155878] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:34:52,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:34:52,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2025-04-24 23:34:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337925804] [2025-04-24 23:34:52,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:34:52,069 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-04-24 23:34:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:52,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-04-24 23:34:52,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2025-04-24 23:34:52,069 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:52,069 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:52,069 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.95) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:34:52,069 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:52,069 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:52,069 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:52,069 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-24 23:34:52,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:34:52,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:34:52,070 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:59,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:59,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:59,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:59,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:34:59,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:34:59,134 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:34:59,135 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-04-24 23:34:59,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-24 23:34:59,335 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:59,336 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:34:59,336 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:34:59,336 INFO L85 PathProgramCache]: Analyzing trace with hash 547455922, now seen corresponding path program 1 times [2025-04-24 23:34:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:34:59,337 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387114184] [2025-04-24 23:34:59,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 23:34:59,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:34:59,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:34:59,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:34:59,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-04-24 23:34:59,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-04-24 23:34:59,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-04-24 23:34:59,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 23:34:59,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:34:59,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-24 23:34:59,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:34:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-04-24 23:34:59,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:34:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-04-24 23:34:59,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:34:59,507 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387114184] [2025-04-24 23:34:59,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387114184] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:34:59,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:34:59,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2025-04-24 23:34:59,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511120831] [2025-04-24 23:34:59,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:34:59,507 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-24 23:34:59,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:34:59,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-24 23:34:59,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-24 23:34:59,508 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:59,508 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:34:59,508 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2025-04-24 23:34:59,508 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:34:59,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:34:59,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:59,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:34:59,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:34:59,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:34:59,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:34:59,935 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 23:34:59,936 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:34:59,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-04-24 23:35:00,136 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:00,136 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:35:00,137 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:35:00,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1039487664, now seen corresponding path program 2 times [2025-04-24 23:35:00,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:35:00,137 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978249213] [2025-04-24 23:35:00,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 23:35:00,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:00,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:35:00,140 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:35:00,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-04-24 23:35:00,205 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 124 statements into 2 equivalence classes. [2025-04-24 23:35:00,285 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 124 of 124 statements. [2025-04-24 23:35:00,285 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 23:35:00,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:35:00,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-04-24 23:35:00,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:35:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 41 proven. 74 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-04-24 23:35:00,603 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:35:01,113 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-04-24 23:35:01,113 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:35:01,113 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978249213] [2025-04-24 23:35:01,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978249213] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:35:01,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:35:01,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2025-04-24 23:35:01,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795803413] [2025-04-24 23:35:01,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:35:01,114 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-04-24 23:35:01,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:35:01,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-04-24 23:35:01,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2025-04-24 23:35:01,115 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:01,115 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:35:01,115 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.6923076923076925) internal successors, (148), 26 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:01,115 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-04-24 23:35:02,554 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:02,555 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:35:02,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-04-24 23:35:02,755 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:02,755 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:35:02,756 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:35:02,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1275507088, now seen corresponding path program 3 times [2025-04-24 23:35:02,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:35:02,756 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152609971] [2025-04-24 23:35:02,756 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 23:35:02,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:02,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:35:02,758 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:35:02,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-04-24 23:35:02,831 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 142 statements into 6 equivalence classes. [2025-04-24 23:35:08,777 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 110 of 142 statements. [2025-04-24 23:35:08,777 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-04-24 23:35:08,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:35:08,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-04-24 23:35:08,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:35:09,350 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-04-24 23:35:09,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:35:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2025-04-24 23:35:11,050 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:35:11,050 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152609971] [2025-04-24 23:35:11,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152609971] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:35:11,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:35:11,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 30 [2025-04-24 23:35:11,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907062583] [2025-04-24 23:35:11,050 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:35:11,050 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-04-24 23:35:11,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:35:11,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-04-24 23:35:11,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=698, Unknown=0, NotChecked=0, Total=870 [2025-04-24 23:35:11,051 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:11,052 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:35:11,052 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.8) internal successors, (114), 30 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:35:11,052 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:21,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:21,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:21,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:35:21,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:35:21,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:35:21,542 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:35:21,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2025-04-24 23:35:21,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:21,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:35:21,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2025-04-24 23:35:21,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-04-24 23:35:21,743 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:21,743 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:35:21,744 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:35:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash -269272383, now seen corresponding path program 4 times [2025-04-24 23:35:21,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:35:21,744 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908098043] [2025-04-24 23:35:21,744 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 23:35:21,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:21,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:35:21,746 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:35:21,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-04-24 23:35:21,821 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 136 statements into 2 equivalence classes. [2025-04-24 23:35:21,891 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 133 of 136 statements. [2025-04-24 23:35:21,891 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-24 23:35:21,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 23:35:21,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-04-24 23:35:21,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 23:35:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2025-04-24 23:35:22,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 23:35:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2025-04-24 23:35:24,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-24 23:35:24,256 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908098043] [2025-04-24 23:35:24,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908098043] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 23:35:24,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-24 23:35:24,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2025-04-24 23:35:24,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289727686] [2025-04-24 23:35:24,256 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-04-24 23:35:24,256 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-04-24 23:35:24,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-24 23:35:24,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-04-24 23:35:24,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=1345, Unknown=0, NotChecked=0, Total=1722 [2025-04-24 23:35:24,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:24,258 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 23:35:24,258 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.4761904761904763) internal successors, (146), 42 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2025-04-24 23:35:24,258 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-24 23:35:36,316 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2025-04-24 23:35:36,317 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2025-04-24 23:35:36,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-04-24 23:35:36,517 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:36,517 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-24 23:35:36,518 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 23:35:36,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1479221335, now seen corresponding path program 5 times [2025-04-24 23:35:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-24 23:35:36,518 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755608661] [2025-04-24 23:35:36,518 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 23:35:36,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 23:35:36,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 23:35:36,520 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 23:35:36,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-24 23:35:36,603 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 196 statements into 12 equivalence classes.