./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 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-bad-dot-product-alt.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 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-20 03:54:39,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-20 03:54:39,449 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-20 03:54:39,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-20 03:54:39,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-20 03:54:39,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-20 03:54:39,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-20 03:54:39,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-20 03:54:39,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-20 03:54:39,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-20 03:54:39,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-20 03:54:39,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-20 03:54:39,482 INFO L153 SettingsManager]: * Use SBE=true [2025-03-20 03:54:39,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-20 03:54:39,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-20 03:54:39,482 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-20 03:54:39,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 03:54:39,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-20 03:54:39,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-20 03:54:39,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-20 03:54:39,484 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-20 03:54:39,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-20 03:54:39,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-20 03:54:39,484 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-20 03:54:39,484 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-20 03:54:39,484 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 -> 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-03-20 03:54:39,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-20 03:54:39,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-20 03:54:39,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-20 03:54:39,744 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-20 03:54:39,744 INFO L274 PluginConnector]: CDTParser initialized [2025-03-20 03:54:39,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2025-03-20 03:54:41,041 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/35e07ac5c/a3d37fb34a9845608f70b19c6cbbf80f/FLAGe698af270 [2025-03-20 03:54:41,179 INFO L389 CDTParser]: Found 1 translation units. [2025-03-20 03:54:41,179 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2025-03-20 03:54:41,184 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/35e07ac5c/a3d37fb34a9845608f70b19c6cbbf80f/FLAGe698af270 [2025-03-20 03:54:42,091 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/35e07ac5c/a3d37fb34a9845608f70b19c6cbbf80f [2025-03-20 03:54:42,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-20 03:54:42,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-20 03:54:42,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-20 03:54:42,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-20 03:54:42,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-20 03:54:42,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548eead0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42, skipping insertion in model container [2025-03-20 03:54:42,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-20 03:54:42,276 WARN L250 ndardFunctionHandler]: 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-bad-dot-product-alt.wvr.c[3221,3234] [2025-03-20 03:54:42,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 03:54:42,296 INFO L200 MainTranslator]: Completed pre-run [2025-03-20 03:54:42,332 WARN L250 ndardFunctionHandler]: 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-bad-dot-product-alt.wvr.c[3221,3234] [2025-03-20 03:54:42,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 03:54:42,351 INFO L204 MainTranslator]: Completed translation [2025-03-20 03:54:42,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42 WrapperNode [2025-03-20 03:54:42,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-20 03:54:42,352 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-20 03:54:42,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-20 03:54:42,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-20 03:54:42,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,387 INFO L138 Inliner]: procedures = 27, calls = 59, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 339 [2025-03-20 03:54:42,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-20 03:54:42,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-20 03:54:42,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-20 03:54:42,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-20 03:54:42,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-20 03:54:42,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-20 03:54:42,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-20 03:54:42,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-20 03:54:42,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (1/1) ... [2025-03-20 03:54:42,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 03:54:42,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:54:42,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-20 03:54:42,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-20 03:54:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-20 03:54:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-20 03:54:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-20 03:54:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-20 03:54:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-20 03:54:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-20 03:54:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-20 03:54:42,474 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-20 03:54:42,580 INFO L234 CfgBuilder]: Building ICFG [2025-03-20 03:54:42,581 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-20 03:54:42,981 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-20 03:54:42,981 INFO L283 CfgBuilder]: Performing block encoding [2025-03-20 03:54:43,258 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-20 03:54:43,258 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-20 03:54:43,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:54:43 BoogieIcfgContainer [2025-03-20 03:54:43,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-20 03:54:43,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-20 03:54:43,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-20 03:54:43,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-20 03:54:43,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:54:42" (1/3) ... [2025-03-20 03:54:43,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bcb5e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:54:43, skipping insertion in model container [2025-03-20 03:54:43,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:54:42" (2/3) ... [2025-03-20 03:54:43,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bcb5e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:54:43, skipping insertion in model container [2025-03-20 03:54:43,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:54:43" (3/3) ... [2025-03-20 03:54:43,268 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2025-03-20 03:54:43,278 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-20 03:54:43,280 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-dot-product-alt.wvr.c that has 4 procedures, 33 locations, 36 edges, 1 initial locations, 7 loop locations, and 1 error locations. [2025-03-20 03:54:43,280 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-20 03:54:43,356 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-20 03:54:43,387 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 03:54:43,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-20 03:54:43,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:54:43,391 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) [2025-03-20 03:54:43,393 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 [2025-03-20 03:54:43,459 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 03:54:43,465 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-20 03:54:43,471 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;@45e8d2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 03:54:43,471 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-20 03:54:43,644 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)] === [2025-03-20 03:54:43,647 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:54:43,647 INFO L85 PathProgramCache]: Analyzing trace with hash -104143544, now seen corresponding path program 1 times [2025-03-20 03:54:43,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:54:43,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711020319] [2025-03-20 03:54:43,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:43,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:54:43,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-20 03:54:43,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-20 03:54:43,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:43,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 03:54:43,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:54:43,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711020319] [2025-03-20 03:54:43,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711020319] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:54:43,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:54:43,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-20 03:54:43,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695700791] [2025-03-20 03:54:43,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:54:43,948 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-20 03:54:43,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:54:43,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-20 03:54:43,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-20 03:54:43,961 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:43,962 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:54:43,963 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2025-03-20 03:54:43,963 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:44,010 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:44,010 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-20 03:54:44,010 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)] === [2025-03-20 03:54:44,011 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:54:44,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1136071393, now seen corresponding path program 1 times [2025-03-20 03:54:44,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:54:44,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262530078] [2025-03-20 03:54:44,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:44,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:54:44,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-20 03:54:44,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-20 03:54:44,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:44,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-20 03:54:44,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:54:44,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262530078] [2025-03-20 03:54:44,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262530078] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:54:44,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:54:44,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-20 03:54:44,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152603021] [2025-03-20 03:54:44,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:54:44,256 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:54:44,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:54:44,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:54:44,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:54:44,257 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:44,257 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:54:44,257 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-03-20 03:54:44,257 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:44,257 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:44,340 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:44,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:44,341 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-20 03:54:44,342 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)] === [2025-03-20 03:54:44,342 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:54:44,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2146353274, now seen corresponding path program 1 times [2025-03-20 03:54:44,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:54:44,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455496304] [2025-03-20 03:54:44,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:44,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:54:44,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-20 03:54:44,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 03:54:44,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:44,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:44,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:54:44,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455496304] [2025-03-20 03:54:44,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455496304] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-20 03:54:44,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072131570] [2025-03-20 03:54:44,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:44,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:54:44,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:54:44,533 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) [2025-03-20 03:54:44,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-20 03:54:44,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-20 03:54:44,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 03:54:44,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:44,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:44,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-20 03:54:44,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:54:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:44,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 03:54:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:44,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072131570] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-20 03:54:44,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-20 03:54:44,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2025-03-20 03:54:44,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165000800] [2025-03-20 03:54:44,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:54:44,773 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-20 03:54:44,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:54:44,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-20 03:54:44,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-20 03:54:44,774 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:44,774 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:54:44,775 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-20 03:54:44,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:44,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:44,775 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:44,857 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:44,858 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:44,858 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:44,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-20 03:54:45,058 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-20 03:54:45,061 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)] === [2025-03-20 03:54:45,061 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:54:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -192239450, now seen corresponding path program 1 times [2025-03-20 03:54:45,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:54:45,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135687769] [2025-03-20 03:54:45,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:54:45,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-20 03:54:45,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 03:54:45,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:45,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:45,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:45,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:54:45,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135687769] [2025-03-20 03:54:45,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135687769] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:54:45,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:54:45,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:54:45,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126573800] [2025-03-20 03:54:45,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:54:45,168 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:54:45,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:54:45,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:54:45,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:54:45,168 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:45,168 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:54:45,168 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-20 03:54:45,168 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:45,168 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,168 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:45,249 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:45,249 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,249 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,250 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:45,250 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-20 03:54:45,250 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)] === [2025-03-20 03:54:45,250 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:54:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1376189183, now seen corresponding path program 1 times [2025-03-20 03:54:45,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:54:45,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646457685] [2025-03-20 03:54:45,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:54:45,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-20 03:54:45,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-20 03:54:45,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:45,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:45,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:45,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:54:45,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646457685] [2025-03-20 03:54:45,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646457685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:54:45,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:54:45,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:54:45,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405740596] [2025-03-20 03:54:45,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:54:45,535 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:54:45,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:54:45,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:54:45,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:54:45,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:45,536 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:54:45,536 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 03:54:45,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:45,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,536 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,537 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:45,537 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:45,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:45,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:45,654 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:45,654 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-20 03:54:45,654 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)] === [2025-03-20 03:54:45,655 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:54:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash 721210201, now seen corresponding path program 1 times [2025-03-20 03:54:45,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:54:45,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444668814] [2025-03-20 03:54:45,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:45,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:54:45,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-20 03:54:45,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-20 03:54:45,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:45,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:45,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:54:45,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444668814] [2025-03-20 03:54:45,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444668814] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:54:45,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:54:45,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:54:45,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276571286] [2025-03-20 03:54:45,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:54:45,937 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:54:45,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-20 03:54:45,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:54:45,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:54:45,938 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:45,938 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:54:45,938 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) 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) [2025-03-20 03:54:45,938 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:45,938 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,938 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:45,938 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:45,938 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:45,938 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:54:46,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:54:46,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:46,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:46,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:46,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:54:46,016 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:54:46,016 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-20 03:54:46,017 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)] === [2025-03-20 03:54:46,017 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:54:46,017 INFO L85 PathProgramCache]: Analyzing trace with hash 618648340, now seen corresponding path program 1 times [2025-03-20 03:54:46,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-20 03:54:46,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831821917] [2025-03-20 03:54:46,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:46,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-20 03:54:46,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-20 03:54:46,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-20 03:54:46,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:46,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:47,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-20 03:54:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831821917] [2025-03-20 03:54:47,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831821917] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-20 03:54:47,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823738981] [2025-03-20 03:54:47,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:54:47,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:54:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:54:47,419 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) [2025-03-20 03:54:47,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-20 03:54:47,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-20 03:54:47,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-20 03:54:47,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:54:47,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:54:47,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 52 conjuncts are in the unsatisfiable core [2025-03-20 03:54:47,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:54:47,584 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-20 03:54:47,625 INFO L325 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-20 03:54:47,625 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-03-20 03:54:47,664 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-03-20 03:54:47,708 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-20 03:54:47,712 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-20 03:54:47,716 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-20 03:54:48,148 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2025-03-20 03:54:48,155 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2025-03-20 03:54:48,206 INFO L325 Elim1Store]: treesize reduction 80, result has 44.8 percent of original size [2025-03-20 03:54:48,207 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 83 [2025-03-20 03:54:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:54:48,247 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 03:54:49,051 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 151 [2025-03-20 03:54:49,071 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 03:54:49,071 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 576 treesize of output 538 [2025-03-20 03:54:49,079 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 492 [2025-03-20 03:54:49,096 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 03:54:49,096 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1568 treesize of output 1326 [2025-03-20 03:54:54,365 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 03:54:54,366 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 534 treesize of output 294 [2025-03-20 03:54:56,233 INFO L325 Elim1Store]: treesize reduction 13, result has 98.9 percent of original size [2025-03-20 03:54:56,234 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 16 new quantified variables, introduced 66 case distinctions, treesize of input 1125 treesize of output 1924 [2025-03-20 03:54:56,444 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:54:56,450 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:54:57,290 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 03:54:57,291 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 16 new quantified variables, introduced 64 case distinctions, treesize of input 1512 treesize of output 1855 [2025-03-20 03:56:49,382 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-03-20 03:56:49,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2025-03-20 03:56:49,383 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2025-03-20 03:56:49,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-20 03:56:49,583 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:49,589 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 [2025-03-20 03:56:49,590 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:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java: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:135) 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.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) 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:429) 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) ... 70 more [2025-03-20 03:56:49,595 INFO L158 Benchmark]: Toolchain (without parser) took 127500.94ms. Allocated memory was 83.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 59.4MB in the beginning and 882.0MB in the end (delta: -822.6MB). Peak memory consumption was 769.9MB. Max. memory is 16.1GB. [2025-03-20 03:56:49,596 INFO L158 Benchmark]: CDTParser took 2.31ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 61.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 03:56:49,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.23ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 43.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-20 03:56:49,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.19ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 40.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 03:56:49,596 INFO L158 Benchmark]: Boogie Preprocessor took 32.84ms. Allocated memory is still 83.9MB. Free memory was 40.4MB in the beginning and 38.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-20 03:56:49,596 INFO L158 Benchmark]: RCFGBuilder took 831.69ms. Allocated memory is still 83.9MB. Free memory was 38.4MB in the beginning and 32.1MB in the end (delta: 6.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2025-03-20 03:56:49,596 INFO L158 Benchmark]: TraceAbstraction took 126334.06ms. Allocated memory was 83.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 31.6MB in the beginning and 882.0MB in the end (delta: -850.4MB). Peak memory consumption was 744.8MB. Max. memory is 16.1GB. [2025-03-20 03:56:49,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.31ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 61.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.23ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 43.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.19ms. Allocated memory is still 83.9MB. Free memory was 43.1MB in the beginning and 40.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.84ms. Allocated memory is still 83.9MB. Free memory was 40.4MB in the beginning and 38.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 831.69ms. Allocated memory is still 83.9MB. Free memory was 38.4MB in the beginning and 32.1MB in the end (delta: 6.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 126334.06ms. Allocated memory was 83.9MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 31.6MB in the beginning and 882.0MB in the end (delta: -850.4MB). Peak memory consumption was 744.8MB. 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:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/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-bad-dot-product-alt.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 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-20 03:56:51,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-20 03:56:51,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-03-20 03:56:51,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-20 03:56:51,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-20 03:56:51,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-20 03:56:51,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-20 03:56:51,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-20 03:56:51,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-20 03:56:51,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-20 03:56:51,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-20 03:56:51,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-20 03:56:51,234 INFO L153 SettingsManager]: * Use SBE=true [2025-03-20 03:56:51,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-20 03:56:51,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-20 03:56:51,234 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-20 03:56:51,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-20 03:56:51,235 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-20 03:56:51,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 03:56:51,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-20 03:56:51,236 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-20 03:56:51,237 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-20 03:56:51,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-20 03:56:51,237 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-20 03:56:51,237 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-20 03:56:51,237 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 -> 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-03-20 03:56:51,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-20 03:56:51,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-20 03:56:51,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-20 03:56:51,478 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-20 03:56:51,478 INFO L274 PluginConnector]: CDTParser initialized [2025-03-20 03:56:51,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2025-03-20 03:56:53,411 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/90650a39b/d05f806b15b343519e00e71d41259f60/FLAG530339c73 [2025-03-20 03:56:53,583 INFO L389 CDTParser]: Found 1 translation units. [2025-03-20 03:56:53,583 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2025-03-20 03:56:53,588 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/90650a39b/d05f806b15b343519e00e71d41259f60/FLAG530339c73 [2025-03-20 03:56:54,459 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/90650a39b/d05f806b15b343519e00e71d41259f60 [2025-03-20 03:56:54,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-20 03:56:54,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-20 03:56:54,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-20 03:56:54,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-20 03:56:54,466 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-20 03:56:54,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642c45a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54, skipping insertion in model container [2025-03-20 03:56:54,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-20 03:56:54,617 WARN L250 ndardFunctionHandler]: 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-bad-dot-product-alt.wvr.c[3221,3234] [2025-03-20 03:56:54,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 03:56:54,632 INFO L200 MainTranslator]: Completed pre-run [2025-03-20 03:56:54,672 WARN L250 ndardFunctionHandler]: 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-bad-dot-product-alt.wvr.c[3221,3234] [2025-03-20 03:56:54,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-20 03:56:54,692 INFO L204 MainTranslator]: Completed translation [2025-03-20 03:56:54,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54 WrapperNode [2025-03-20 03:56:54,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-20 03:56:54,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-20 03:56:54,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-20 03:56:54,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-20 03:56:54,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,739 INFO L138 Inliner]: procedures = 29, calls = 59, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 329 [2025-03-20 03:56:54,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-20 03:56:54,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-20 03:56:54,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-20 03:56:54,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-20 03:56:54,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,777 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-20 03:56:54,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-20 03:56:54,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-20 03:56:54,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-20 03:56:54,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (1/1) ... [2025-03-20 03:56:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-20 03:56:54,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:54,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-20 03:56:54,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-20 03:56:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-20 03:56:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-03-20 03:56:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-20 03:56:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-03-20 03:56:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-20 03:56:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-20 03:56:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-20 03:56:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-20 03:56:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-20 03:56:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-20 03:56:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-20 03:56:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-20 03:56:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-20 03:56:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-20 03:56:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-20 03:56:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-20 03:56:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-03-20 03:56:54,865 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-20 03:56:54,949 INFO L234 CfgBuilder]: Building ICFG [2025-03-20 03:56:54,950 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-20 03:56:55,390 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-20 03:56:55,390 INFO L283 CfgBuilder]: Performing block encoding [2025-03-20 03:56:55,791 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-20 03:56:55,792 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-20 03:56:55,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:56:55 BoogieIcfgContainer [2025-03-20 03:56:55,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-20 03:56:55,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-20 03:56:55,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-20 03:56:55,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-20 03:56:55,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:56:54" (1/3) ... [2025-03-20 03:56:55,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bae970c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:56:55, skipping insertion in model container [2025-03-20 03:56:55,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:56:54" (2/3) ... [2025-03-20 03:56:55,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bae970c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:56:55, skipping insertion in model container [2025-03-20 03:56:55,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:56:55" (3/3) ... [2025-03-20 03:56:55,801 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2025-03-20 03:56:55,812 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-20 03:56:55,813 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-dot-product-alt.wvr.c that has 4 procedures, 33 locations, 36 edges, 1 initial locations, 7 loop locations, and 1 error locations. [2025-03-20 03:56:55,814 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-20 03:56:55,887 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-20 03:56:55,914 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 03:56:55,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-20 03:56:55,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:55,917 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) [2025-03-20 03:56:55,918 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 [2025-03-20 03:56:55,997 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-20 03:56:56,005 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-20 03:56:56,012 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;@7cb84a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-20 03:56:56,013 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-20 03:56:56,224 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)] === [2025-03-20 03:56:56,227 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:56:56,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1312046292, now seen corresponding path program 1 times [2025-03-20 03:56:56,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:56:56,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099217462] [2025-03-20 03:56:56,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:56:56,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:56,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:56,256 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) [2025-03-20 03:56:56,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-20 03:56:56,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-20 03:56:56,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-20 03:56:56,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:56:56,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:56:56,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-20 03:56:56,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:56:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 03:56:56,473 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:56:56,473 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:56:56,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099217462] [2025-03-20 03:56:56,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099217462] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:56:56,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:56:56,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-20 03:56:56,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579529446] [2025-03-20 03:56:56,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:56:56,479 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-20 03:56:56,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:56:56,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-20 03:56:56,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-20 03:56:56,495 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:56,496 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:56:56,497 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2025-03-20 03:56:56,498 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:56,576 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:56,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-20 03:56:56,776 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:56,777 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)] === [2025-03-20 03:56:56,778 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:56:56,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1764116263, now seen corresponding path program 1 times [2025-03-20 03:56:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:56:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707333559] [2025-03-20 03:56:56,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:56:56,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:56,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:56,781 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) [2025-03-20 03:56:56,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-20 03:56:56,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-20 03:56:56,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-20 03:56:56,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:56:56,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:56:56,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-20 03:56:56,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:56:56,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-20 03:56:56,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:56:56,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:56:56,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707333559] [2025-03-20 03:56:56,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707333559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:56:56,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:56:56,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:56:56,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595739703] [2025-03-20 03:56:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:56:56,975 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-20 03:56:56,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:56:56,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-20 03:56:56,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-20 03:56:56,975 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:56,975 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:56:56,975 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2025-03-20 03:56:56,975 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:56,975 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:57,098 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:57,099 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:57,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-20 03:56:57,299 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:57,299 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)] === [2025-03-20 03:56:57,300 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:56:57,300 INFO L85 PathProgramCache]: Analyzing trace with hash -576737209, now seen corresponding path program 1 times [2025-03-20 03:56:57,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:56:57,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315955572] [2025-03-20 03:56:57,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:56:57,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:57,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:57,302 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) [2025-03-20 03:56:57,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-20 03:56:57,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-20 03:56:57,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-20 03:56:57,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:56:57,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:56:57,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-20 03:56:57,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:56:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-20 03:56:57,424 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:56:57,424 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:56:57,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315955572] [2025-03-20 03:56:57,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315955572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:56:57,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:56:57,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-20 03:56:57,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060647219] [2025-03-20 03:56:57,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:56:57,425 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:56:57,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:56:57,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:56:57,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:56:57,426 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:57,426 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:56:57,426 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-03-20 03:56:57,426 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:57,426 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:57,426 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:57,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:57,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:57,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:57,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-20 03:56:57,737 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:57,737 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)] === [2025-03-20 03:56:57,738 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:56:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 682065966, now seen corresponding path program 1 times [2025-03-20 03:56:57,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:56:57,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168550136] [2025-03-20 03:56:57,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:56:57,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:57,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:57,740 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) [2025-03-20 03:56:57,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-20 03:56:57,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-20 03:56:57,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-20 03:56:57,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:56:57,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:56:57,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-20 03:56:57,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:56:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:56:58,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:56:58,107 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:56:58,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168550136] [2025-03-20 03:56:58,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168550136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:56:58,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:56:58,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-20 03:56:58,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452326487] [2025-03-20 03:56:58,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:56:58,107 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-20 03:56:58,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:56:58,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-20 03:56:58,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-20 03:56:58,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:58,108 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:56:58,108 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 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) [2025-03-20 03:56:58,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:58,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:58,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:58,108 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:58,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:58,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:58,371 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:58,372 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:56:58,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-20 03:56:58,572 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:58,572 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)] === [2025-03-20 03:56:58,573 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:56:58,573 INFO L85 PathProgramCache]: Analyzing trace with hash 374756069, now seen corresponding path program 1 times [2025-03-20 03:56:58,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:56:58,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486353933] [2025-03-20 03:56:58,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:56:58,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:58,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:58,575 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) [2025-03-20 03:56:58,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-20 03:56:58,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-20 03:56:59,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-20 03:56:59,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:56:59,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:56:59,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-20 03:56:59,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:56:59,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:56:59,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:56:59,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:56:59,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486353933] [2025-03-20 03:56:59,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486353933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:56:59,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:56:59,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:56:59,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434903608] [2025-03-20 03:56:59,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:56:59,227 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:56:59,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:56:59,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:56:59,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:56:59,229 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:59,229 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:56:59,229 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 03:56:59,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:59,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:59,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:59,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:56:59,229 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:56:59,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:56:59,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:59,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:56:59,494 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:56:59,495 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:56:59,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-20 03:56:59,695 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:59,696 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)] === [2025-03-20 03:56:59,696 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:56:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash -475198531, now seen corresponding path program 1 times [2025-03-20 03:56:59,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:56:59,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244166222] [2025-03-20 03:56:59,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:56:59,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:56:59,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:56:59,698 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) [2025-03-20 03:56:59,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-20 03:56:59,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-20 03:57:01,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-20 03:57:01,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:57:01,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:57:01,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-20 03:57:01,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:57:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:57:01,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:57:01,232 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:57:01,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244166222] [2025-03-20 03:57:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244166222] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:57:01,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:57:01,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-20 03:57:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583707656] [2025-03-20 03:57:01,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:57:01,232 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-20 03:57:01,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:57:01,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-20 03:57:01,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-20 03:57:01,233 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:57:01,233 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:57:01,233 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) 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) [2025-03-20 03:57:01,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:57:01,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:57:01,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:57:01,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:57:01,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:57:01,233 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:57:01,359 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:57:01,359 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:57:01,360 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:57:01,360 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:57:01,360 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:57:01,360 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:57:01,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-20 03:57:01,560 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:57:01,561 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)] === [2025-03-20 03:57:01,561 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:57:01,561 INFO L85 PathProgramCache]: Analyzing trace with hash 969610764, now seen corresponding path program 1 times [2025-03-20 03:57:01,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:57:01,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654558542] [2025-03-20 03:57:01,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:57:01,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:57:01,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:57:01,564 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) [2025-03-20 03:57:01,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-20 03:57:01,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-20 03:57:03,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-20 03:57:03,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:57:03,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:57:03,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-03-20 03:57:03,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:57:04,232 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-20 03:57:04,241 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-20 03:57:05,489 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:57:05,557 INFO L325 Elim1Store]: treesize reduction 129, result has 16.8 percent of original size [2025-03-20 03:57:05,557 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 88 [2025-03-20 03:57:05,570 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2025-03-20 03:57:05,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:57:05,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 03:57:08,537 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 03:57:08,537 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 152 treesize of output 295 [2025-03-20 03:58:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-20 03:58:45,852 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:58:45,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654558542] [2025-03-20 03:58:45,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654558542] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-20 03:58:45,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-20 03:58:45,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2025-03-20 03:58:45,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977698557] [2025-03-20 03:58:45,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-20 03:58:45,852 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-20 03:58:45,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:58:45,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-20 03:58:45,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=608, Unknown=1, NotChecked=0, Total=756 [2025-03-20 03:58:45,853 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:45,853 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:58:45,853 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.0) internal successors, (56), 27 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 03:58:45,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:45,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:45,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:45,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:45,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:45,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:45,854 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:55,503 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:55,503 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:55,503 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:55,503 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:55,503 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:55,503 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:55,503 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:55,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-20 03:58:55,703 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:55,704 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)] === [2025-03-20 03:58:55,704 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:58:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 987091734, now seen corresponding path program 2 times [2025-03-20 03:58:55,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:58:55,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202205077] [2025-03-20 03:58:55,705 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 03:58:55,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:55,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:58:55,706 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) [2025-03-20 03:58:55,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-20 03:58:55,784 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-03-20 03:58:55,855 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-20 03:58:55,855 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-20 03:58:55,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:58:55,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-20 03:58:55,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:58:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-20 03:58:56,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:58:56,066 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:58:56,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202205077] [2025-03-20 03:58:56,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202205077] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:58:56,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:58:56,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-20 03:58:56,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154399112] [2025-03-20 03:58:56,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:58:56,066 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-20 03:58:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:58:56,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-20 03:58:56,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-20 03:58:56,067 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:56,067 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:58:56,067 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 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) [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:56,067 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:56,617 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:56,617 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:56,617 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:56,617 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:56,617 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:56,617 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:56,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:56,622 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-20 03:58:56,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-20 03:58:56,822 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:56,823 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)] === [2025-03-20 03:58:56,823 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:58:56,823 INFO L85 PathProgramCache]: Analyzing trace with hash 468172477, now seen corresponding path program 1 times [2025-03-20 03:58:56,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:58:56,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455067704] [2025-03-20 03:58:56,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-20 03:58:56,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:56,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:58:56,827 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) [2025-03-20 03:58:56,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-20 03:58:56,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-20 03:58:56,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-20 03:58:56,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-20 03:58:56,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:58:56,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-20 03:58:56,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:58:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-20 03:58:57,040 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 03:58:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-20 03:58:57,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:58:57,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455067704] [2025-03-20 03:58:57,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455067704] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-20 03:58:57,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-20 03:58:57,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-03-20 03:58:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340855252] [2025-03-20 03:58:57,136 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-20 03:58:57,136 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-20 03:58:57,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:58:57,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-20 03:58:57,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-20 03:58:57,137 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:57,137 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:58:57,137 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 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) [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-20 03:58:57,137 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-20 03:58:57,533 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 03:58:57,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-20 03:58:57,734 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:57,734 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)] === [2025-03-20 03:58:57,735 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:58:57,735 INFO L85 PathProgramCache]: Analyzing trace with hash -225862300, now seen corresponding path program 2 times [2025-03-20 03:58:57,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:58:57,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429259552] [2025-03-20 03:58:57,736 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-20 03:58:57,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:57,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:58:57,737 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) [2025-03-20 03:58:57,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-20 03:58:57,818 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-03-20 03:58:57,834 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 35 statements. [2025-03-20 03:58:57,834 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-20 03:58:57,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:58:57,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-20 03:58:57,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:58:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-20 03:58:58,010 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-20 03:58:58,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:58:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429259552] [2025-03-20 03:58:58,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429259552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-20 03:58:58,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-20 03:58:58,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-20 03:58:58,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111964933] [2025-03-20 03:58:58,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-20 03:58:58,011 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-20 03:58:58,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:58:58,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-20 03:58:58,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-20 03:58:58,011 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:58,011 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:58:58,011 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 03:58:58,011 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:58,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:58,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:58,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:58,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:58,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:58,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:58,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:58,263 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-20 03:58:58,263 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 03:58:58,263 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-20 03:58:58,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-20 03:58:58,463 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:58,463 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)] === [2025-03-20 03:58:58,464 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:58:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1987813871, now seen corresponding path program 3 times [2025-03-20 03:58:58,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:58:58,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054257434] [2025-03-20 03:58:58,464 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-20 03:58:58,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:58:58,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:58:58,466 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) [2025-03-20 03:58:58,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-20 03:58:58,538 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 38 statements into 3 equivalence classes. [2025-03-20 03:58:58,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 36 of 38 statements. [2025-03-20 03:58:58,587 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-20 03:58:58,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:58:58,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-20 03:58:58,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:58:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-20 03:58:58,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 03:58:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-20 03:58:59,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-20 03:58:59,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054257434] [2025-03-20 03:58:59,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054257434] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-20 03:58:59,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-20 03:58:59,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2025-03-20 03:58:59,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951467000] [2025-03-20 03:58:59,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-20 03:58:59,652 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-20 03:58:59,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-20 03:58:59,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-20 03:58:59,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2025-03-20 03:58:59,652 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:58:59,652 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-20 03:58:59,653 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 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) [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-20 03:58:59,653 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-20 03:59:01,725 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-20 03:59:01,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-20 03:59:01,729 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-20 03:59:01,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-20 03:59:01,930 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:59:01,930 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)] === [2025-03-20 03:59:01,930 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-20 03:59:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash 391794052, now seen corresponding path program 4 times [2025-03-20 03:59:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-20 03:59:01,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1892220504] [2025-03-20 03:59:01,931 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-20 03:59:01,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-20 03:59:01,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-20 03:59:01,933 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) [2025-03-20 03:59:01,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-20 03:59:02,010 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 41 statements into 2 equivalence classes. [2025-03-20 03:59:11,941 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 41 of 41 statements. [2025-03-20 03:59:11,942 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-20 03:59:11,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-20 03:59:11,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 77 conjuncts are in the unsatisfiable core [2025-03-20 03:59:11,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-20 03:59:12,265 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-20 03:59:12,279 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-20 03:59:17,824 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:59:17,826 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:59:18,372 INFO L325 Elim1Store]: treesize reduction 468, result has 19.4 percent of original size [2025-03-20 03:59:18,373 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 20 new quantified variables, introduced 66 case distinctions, treesize of input 441 treesize of output 263 [2025-03-20 03:59:18,406 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:59:18,407 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:59:18,409 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 123 [2025-03-20 03:59:18,427 INFO L172 IndexEqualityManager]: detected equality via solver [2025-03-20 03:59:18,436 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 03:59:18,436 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 96 [2025-03-20 03:59:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-20 03:59:18,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-20 03:59:39,074 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-20 03:59:39,075 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 20 new quantified variables, introduced 66 case distinctions, treesize of input 602 treesize of output 1118 Killed by 15