./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/test-context1.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 d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 15:49:46,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 15:49:46,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 15:49:46,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 15:49:46,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 15:49:46,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 15:49:46,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 15:49:46,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 15:49:46,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 15:49:46,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 15:49:46,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 15:49:46,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 15:49:46,736 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 15:49:46,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 15:49:46,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 15:49:46,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 15:49:46,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 15:49:46,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 15:49:46,739 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 15:49:46,740 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 15:49:46,740 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 -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-03-19 15:49:46,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 15:49:46,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 15:49:46,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 15:49:46,954 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 15:49:46,954 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 15:49:46,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/weaver/test-context1.wvr.c [2025-03-19 15:49:48,191 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/39d8abd91/13d4277d9bce44d7bf2a6cae2c4e73ca/FLAG95128e7cb [2025-03-19 15:49:48,326 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 15:49:48,326 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2025-03-19 15:49:48,332 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/39d8abd91/13d4277d9bce44d7bf2a6cae2c4e73ca/FLAG95128e7cb [2025-03-19 15:49:49,242 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/39d8abd91/13d4277d9bce44d7bf2a6cae2c4e73ca [2025-03-19 15:49:49,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 15:49:49,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 15:49:49,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 15:49:49,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 15:49:49,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 15:49:49,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d41239b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49, skipping insertion in model container [2025-03-19 15:49:49,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 15:49:49,383 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/test-context1.wvr.c[2459,2472] [2025-03-19 15:49:49,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 15:49:49,395 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 15:49:49,413 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/test-context1.wvr.c[2459,2472] [2025-03-19 15:49:49,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 15:49:49,425 INFO L204 MainTranslator]: Completed translation [2025-03-19 15:49:49,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49 WrapperNode [2025-03-19 15:49:49,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 15:49:49,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 15:49:49,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 15:49:49,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 15:49:49,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,446 INFO L138 Inliner]: procedures = 23, calls = 24, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 122 [2025-03-19 15:49:49,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 15:49:49,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 15:49:49,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 15:49:49,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 15:49:49,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,457 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 15:49:49,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 15:49:49,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 15:49:49,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 15:49:49,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (1/1) ... [2025-03-19 15:49:49,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 15:49:49,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:49,493 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) [2025-03-19 15:49:49,497 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 [2025-03-19 15:49:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 15:49:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-19 15:49:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-19 15:49:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-19 15:49:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-19 15:49:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 15:49:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-19 15:49:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-19 15:49:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-19 15:49:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-19 15:49:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 15:49:49,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 15:49:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-19 15:49:49,512 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-19 15:49:49,571 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 15:49:49,573 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 15:49:49,790 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 15:49:49,790 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 15:49:49,928 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 15:49:49,928 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-03-19 15:49:49,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 03:49:49 BoogieIcfgContainer [2025-03-19 15:49:49,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 15:49:49,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 15:49:49,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 15:49:49,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 15:49:49,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 03:49:49" (1/3) ... [2025-03-19 15:49:49,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ff5750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 03:49:49, skipping insertion in model container [2025-03-19 15:49:49,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 03:49:49" (2/3) ... [2025-03-19 15:49:49,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ff5750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 03:49:49, skipping insertion in model container [2025-03-19 15:49:49,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 03:49:49" (3/3) ... [2025-03-19 15:49:49,935 INFO L128 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2025-03-19 15:49:49,946 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 15:49:49,948 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-context1.wvr.c that has 3 procedures, 24 locations, 26 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-19 15:49:49,948 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 15:49:50,002 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-19 15:49:50,032 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 15:49:50,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 15:49:50,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:50,036 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) [2025-03-19 15:49:50,037 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 [2025-03-19 15:49:50,086 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 15:49:50,095 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 15:49:50,101 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;@569b2e5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 15:49:50,102 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-19 15:49:50,200 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:50,203 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:50,204 INFO L85 PathProgramCache]: Analyzing trace with hash -234547056, now seen corresponding path program 1 times [2025-03-19 15:49:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:50,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140326820] [2025-03-19 15:49:50,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 15:49:50,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:50,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-19 15:49:50,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-19 15:49:50,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:49:50,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:50,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:50,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:50,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140326820] [2025-03-19 15:49:50,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140326820] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 15:49:50,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 15:49:50,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-19 15:49:50,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321722266] [2025-03-19 15:49:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 15:49:50,324 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-19 15:49:50,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:50,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-19 15:49:50,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-19 15:49:50,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,346 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:50,347 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2025-03-19 15:49:50,347 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,474 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,474 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 15:49:50,474 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:50,475 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:50,475 INFO L85 PathProgramCache]: Analyzing trace with hash 142843592, now seen corresponding path program 1 times [2025-03-19 15:49:50,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:50,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395394131] [2025-03-19 15:49:50,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 15:49:50,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:50,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-19 15:49:50,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-19 15:49:50,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:49:50,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:50,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:50,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395394131] [2025-03-19 15:49:50,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395394131] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 15:49:50,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 15:49:50,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-19 15:49:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186151212] [2025-03-19 15:49:50,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 15:49:50,591 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 15:49:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:50,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 15:49:50,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 15:49:50,593 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,594 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:50,594 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2025-03-19 15:49:50,594 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,594 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,635 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,636 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:50,636 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 15:49:50,636 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:50,637 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:50,637 INFO L85 PathProgramCache]: Analyzing trace with hash 593879905, now seen corresponding path program 1 times [2025-03-19 15:49:50,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795195928] [2025-03-19 15:49:50,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 15:49:50,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:50,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-19 15:49:50,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-19 15:49:50,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:49:50,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:50,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 15:49:50,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:50,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795195928] [2025-03-19 15:49:50,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795195928] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 15:49:50,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 15:49:50,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 15:49:50,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907383997] [2025-03-19 15:49:50,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 15:49:50,848 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 15:49:50,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:50,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 15:49:50,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 15:49:50,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,849 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:50,849 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 15:49:50,850 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,850 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:50,850 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,904 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:50,905 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:50,905 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:50,905 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-19 15:49:50,905 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:50,907 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1318288220, now seen corresponding path program 1 times [2025-03-19 15:49:50,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:50,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534794529] [2025-03-19 15:49:50,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 15:49:50,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:50,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-19 15:49:50,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-19 15:49:50,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:49:50,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:51,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:51,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:51,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534794529] [2025-03-19 15:49:51,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534794529] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:49:51,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141910835] [2025-03-19 15:49:51,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 15:49:51,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:51,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:51,076 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) [2025-03-19 15:49:51,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-19 15:49:51,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-19 15:49:51,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-19 15:49:51,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:49:51,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:51,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-19 15:49:51,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:49:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:51,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:49:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:51,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141910835] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:49:51,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:49:51,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2025-03-19 15:49:51,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401545097] [2025-03-19 15:49:51,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:49:51,392 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-19 15:49:51,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:51,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-19 15:49:51,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2025-03-19 15:49:51,394 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:51,394 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:51,394 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 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) [2025-03-19 15:49:51,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:51,394 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:51,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:51,395 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:51,478 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:51,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:51,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:51,479 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:51,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-19 15:49:51,684 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:51,684 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:51,684 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash -465957951, now seen corresponding path program 2 times [2025-03-19 15:49:51,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:51,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840302606] [2025-03-19 15:49:51,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:49:51,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:51,692 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-03-19 15:49:51,729 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-03-19 15:49:51,729 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:49:51,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:51,956 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 15:49:51,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:51,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840302606] [2025-03-19 15:49:51,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840302606] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:49:51,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069501167] [2025-03-19 15:49:51,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:49:51,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:51,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:51,959 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) [2025-03-19 15:49:51,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-19 15:49:51,996 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-03-19 15:49:52,014 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-03-19 15:49:52,014 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:49:52,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:52,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-19 15:49:52,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:49:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 15:49:52,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:49:52,168 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-03-19 15:49:52,169 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 27 treesize of output 11 [2025-03-19 15:49:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 15:49:52,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069501167] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:49:52,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:49:52,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 4] total 8 [2025-03-19 15:49:52,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775410618] [2025-03-19 15:49:52,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:49:52,193 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-19 15:49:52,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:52,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-19 15:49:52,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-19 15:49:52,193 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:52,193 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:52,194 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 15:49:52,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:52,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:52,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:52,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:52,194 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:52,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:52,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:52,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:52,292 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:52,294 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:52,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-19 15:49:52,497 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:52,497 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:52,497 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:52,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1938485658, now seen corresponding path program 3 times [2025-03-19 15:49:52,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:52,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168119600] [2025-03-19 15:49:52,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:49:52,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:52,507 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 3 equivalence classes. [2025-03-19 15:49:52,536 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 29 of 35 statements. [2025-03-19 15:49:52,536 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 15:49:52,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:53,023 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 15:49:53,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:53,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168119600] [2025-03-19 15:49:53,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168119600] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:49:53,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149858184] [2025-03-19 15:49:53,024 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:49:53,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:53,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:53,028 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) [2025-03-19 15:49:53,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-19 15:49:53,065 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 3 equivalence classes. [2025-03-19 15:49:53,085 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 29 of 35 statements. [2025-03-19 15:49:53,085 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-19 15:49:53,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:53,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-19 15:49:53,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:49:53,200 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 15:49:53,201 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 27 treesize of output 15 [2025-03-19 15:49:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 15:49:53,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:49:53,379 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-03-19 15:49:53,380 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 27 treesize of output 11 [2025-03-19 15:49:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-19 15:49:53,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149858184] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:49:53,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:49:53,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2025-03-19 15:49:53,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241810196] [2025-03-19 15:49:53,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:49:53,463 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-19 15:49:53,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:53,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-19 15:49:53,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2025-03-19 15:49:53,464 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:53,464 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:53,464 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.35) internal successors, (67), 19 states have internal predecessors, (67), 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) [2025-03-19 15:49:53,464 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:53,464 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:53,464 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:53,464 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:53,464 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:53,464 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:53,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:53,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:53,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:53,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:53,655 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:53,656 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:49:53,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-19 15:49:53,856 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:53,856 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:53,857 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1934204893, now seen corresponding path program 4 times [2025-03-19 15:49:53,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:53,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191178939] [2025-03-19 15:49:53,857 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 15:49:53,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:53,867 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 36 statements into 2 equivalence classes. [2025-03-19 15:49:53,880 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-19 15:49:53,880 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 15:49:53,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-19 15:49:53,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:53,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191178939] [2025-03-19 15:49:53,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191178939] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:49:53,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890580449] [2025-03-19 15:49:53,983 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 15:49:53,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:53,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:53,987 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) [2025-03-19 15:49:53,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-19 15:49:54,031 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 36 statements into 2 equivalence classes. [2025-03-19 15:49:54,048 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-19 15:49:54,048 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 15:49:54,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:54,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-19 15:49:54,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:49:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-19 15:49:54,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:49:54,113 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-03-19 15:49:54,113 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 27 treesize of output 11 [2025-03-19 15:49:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-19 15:49:54,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890580449] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:49:54,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:49:54,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 7 [2025-03-19 15:49:54,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664153589] [2025-03-19 15:49:54,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:49:54,139 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-19 15:49:54,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:54,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-19 15:49:54,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-19 15:49:54,140 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:54,140 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:54,140 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 15:49:54,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:54,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:54,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:54,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:54,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:54,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:49:54,140 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:54,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:54,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:54,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:54,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:54,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:54,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:49:54,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:54,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-19 15:49:54,417 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,SelfDestructingSolverStorable6 [2025-03-19 15:49:54,417 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:54,418 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:54,418 INFO L85 PathProgramCache]: Analyzing trace with hash -776502174, now seen corresponding path program 5 times [2025-03-19 15:49:54,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:54,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977845470] [2025-03-19 15:49:54,418 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 15:49:54,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:54,428 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 51 statements into 5 equivalence classes. [2025-03-19 15:49:54,445 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 51 of 51 statements. [2025-03-19 15:49:54,445 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-03-19 15:49:54,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 42 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 15:49:54,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:54,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977845470] [2025-03-19 15:49:54,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977845470] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:49:54,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976376414] [2025-03-19 15:49:54,638 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 15:49:54,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:54,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:54,640 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) [2025-03-19 15:49:54,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-19 15:49:54,681 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 51 statements into 5 equivalence classes. [2025-03-19 15:49:54,704 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 51 of 51 statements. [2025-03-19 15:49:54,705 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-03-19 15:49:54,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:54,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-19 15:49:54,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:49:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 58 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 15:49:54,997 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:49:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 15:49:55,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976376414] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:49:55,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:49:55,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 12] total 33 [2025-03-19 15:49:55,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196196376] [2025-03-19 15:49:55,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:49:55,240 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-19 15:49:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:55,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-19 15:49:55,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2025-03-19 15:49:55,241 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:55,241 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:55,241 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.5) internal successors, (119), 33 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:55,241 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:55,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:55,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:55,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:55,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:55,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:55,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:49:55,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:55,356 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:49:55,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-19 15:49:55,556 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:55,556 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:55,557 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:55,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1957727426, now seen corresponding path program 6 times [2025-03-19 15:49:55,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:55,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790063387] [2025-03-19 15:49:55,557 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 15:49:55,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:55,565 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 53 statements into 5 equivalence classes. [2025-03-19 15:49:55,598 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 53 of 53 statements. [2025-03-19 15:49:55,598 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-19 15:49:55,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 38 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:55,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790063387] [2025-03-19 15:49:55,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790063387] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:49:55,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870533868] [2025-03-19 15:49:55,834 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 15:49:55,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:55,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:55,836 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) [2025-03-19 15:49:55,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-19 15:49:55,877 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 53 statements into 5 equivalence classes. [2025-03-19 15:49:56,261 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 53 of 53 statements. [2025-03-19 15:49:56,261 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-19 15:49:56,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:56,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-19 15:49:56,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:49:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 60 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:56,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:49:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 48 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:56,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870533868] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:49:56,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:49:56,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 14] total 42 [2025-03-19 15:49:56,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094609614] [2025-03-19 15:49:56,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:49:56,923 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-03-19 15:49:56,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:49:56,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-03-19 15:49:56,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1349, Unknown=0, NotChecked=0, Total=1806 [2025-03-19 15:49:56,924 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:56,924 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:49:56,924 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.2325581395348837) internal successors, (139), 42 states have internal predecessors, (139), 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) [2025-03-19 15:49:56,924 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:56,924 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:56,924 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:56,924 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:56,924 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:56,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:49:56,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:56,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:49:56,925 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:57,101 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:49:57,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:49:57,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-19 15:49:57,302 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,SelfDestructingSolverStorable8 [2025-03-19 15:49:57,303 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:49:57,303 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:49:57,303 INFO L85 PathProgramCache]: Analyzing trace with hash -487108539, now seen corresponding path program 7 times [2025-03-19 15:49:57,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:49:57,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264364829] [2025-03-19 15:49:57,303 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 15:49:57,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:49:57,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-19 15:49:57,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-19 15:49:57,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:49:57,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:57,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:49:57,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264364829] [2025-03-19 15:49:57,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264364829] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:49:57,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736572395] [2025-03-19 15:49:57,832 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 15:49:57,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:49:57,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:49:57,834 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) [2025-03-19 15:49:57,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-19 15:49:57,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-19 15:49:57,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-19 15:49:57,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:49:57,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:49:57,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-19 15:49:57,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:49:57,975 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 19 treesize of output 1 [2025-03-19 15:49:57,993 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 23 treesize of output 1 [2025-03-19 15:49:58,020 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 23 treesize of output 1 [2025-03-19 15:49:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 1 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:49:58,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:03,076 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 71 treesize of output 67 [2025-03-19 15:50:03,085 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-03-19 15:50:03,086 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 426 treesize of output 405 [2025-03-19 15:50:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 1 proven. 74 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-19 15:50:03,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736572395] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:03,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:03,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 14] total 43 [2025-03-19 15:50:03,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974662029] [2025-03-19 15:50:03,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:03,250 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2025-03-19 15:50:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:03,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2025-03-19 15:50:03,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1696, Unknown=2, NotChecked=0, Total=1892 [2025-03-19 15:50:03,252 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:03,252 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:03,252 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.090909090909091) internal successors, (136), 43 states have internal predecessors, (136), 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) [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:03,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:04,403 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:04,404 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:04,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-19 15:50:04,604 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:04,605 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:04,605 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2022310466, now seen corresponding path program 8 times [2025-03-19 15:50:04,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:04,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660698557] [2025-03-19 15:50:04,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:50:04,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:04,613 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-03-19 15:50:04,625 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-03-19 15:50:04,626 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:50:04,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 111 proven. 126 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-19 15:50:04,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:04,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660698557] [2025-03-19 15:50:04,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660698557] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:04,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502653649] [2025-03-19 15:50:04,963 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:50:04,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:04,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:04,965 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) [2025-03-19 15:50:04,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-19 15:50:05,008 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-03-19 15:50:05,037 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-03-19 15:50:05,037 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:50:05,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:05,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-19 15:50:05,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 210 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-19 15:50:05,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:05,811 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 174 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-19 15:50:05,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502653649] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:05,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:05,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2025-03-19 15:50:05,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162928893] [2025-03-19 15:50:05,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:05,812 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-03-19 15:50:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:05,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-03-19 15:50:05,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=1879, Unknown=0, NotChecked=0, Total=2450 [2025-03-19 15:50:05,813 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:05,813 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:05,813 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.86) internal successors, (193), 49 states have internal predecessors, (193), 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) [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:05,813 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:06,062 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:06,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:06,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-19 15:50:06,263 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:06,263 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:06,264 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:06,264 INFO L85 PathProgramCache]: Analyzing trace with hash 511349633, now seen corresponding path program 9 times [2025-03-19 15:50:06,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:06,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844928612] [2025-03-19 15:50:06,264 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:50:06,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:06,272 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 80 statements into 9 equivalence classes. [2025-03-19 15:50:06,311 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 56 of 80 statements. [2025-03-19 15:50:06,311 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-19 15:50:06,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 8 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-19 15:50:06,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:06,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844928612] [2025-03-19 15:50:06,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844928612] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:06,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281514749] [2025-03-19 15:50:06,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:50:06,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:06,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:06,885 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) [2025-03-19 15:50:06,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-19 15:50:06,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 80 statements into 9 equivalence classes. [2025-03-19 15:50:07,308 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 56 of 80 statements. [2025-03-19 15:50:07,308 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-19 15:50:07,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:07,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-19 15:50:07,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:07,454 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 23 treesize of output 1 [2025-03-19 15:50:07,841 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 15:50:07,841 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 37 [2025-03-19 15:50:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 127 proven. 65 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-19 15:50:07,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:09,009 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 88 treesize of output 80 [2025-03-19 15:50:09,026 INFO L325 Elim1Store]: treesize reduction 15, result has 40.0 percent of original size [2025-03-19 15:50:09,027 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 99 [2025-03-19 15:50:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-19 15:50:09,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281514749] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:09,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:09,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 55 [2025-03-19 15:50:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30310435] [2025-03-19 15:50:09,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:09,299 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2025-03-19 15:50:09,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:09,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2025-03-19 15:50:09,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=558, Invalid=2522, Unknown=0, NotChecked=0, Total=3080 [2025-03-19 15:50:09,301 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:09,301 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:09,301 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.482142857142857) internal successors, (139), 55 states have internal predecessors, (139), 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) [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:09,301 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:09,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:09,711 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:09,711 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:09,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-19 15:50:09,911 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,SelfDestructingSolverStorable11 [2025-03-19 15:50:09,912 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:09,912 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1745401374, now seen corresponding path program 10 times [2025-03-19 15:50:09,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:09,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770924441] [2025-03-19 15:50:09,912 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 15:50:09,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:09,920 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 81 statements into 2 equivalence classes. [2025-03-19 15:50:09,929 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-03-19 15:50:09,929 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 15:50:09,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 36 proven. 90 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-03-19 15:50:10,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:10,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770924441] [2025-03-19 15:50:10,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770924441] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:10,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366710904] [2025-03-19 15:50:10,139 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 15:50:10,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:10,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:10,160 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) [2025-03-19 15:50:10,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-19 15:50:10,206 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 81 statements into 2 equivalence classes. [2025-03-19 15:50:10,284 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 81 of 81 statements. [2025-03-19 15:50:10,284 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 15:50:10,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:10,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-03-19 15:50:10,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 216 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:50:10,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:11,522 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 149 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:50:11,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366710904] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:11,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:11,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 29, 23] total 58 [2025-03-19 15:50:11,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028130545] [2025-03-19 15:50:11,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:11,523 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2025-03-19 15:50:11,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:11,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2025-03-19 15:50:11,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=744, Invalid=2678, Unknown=0, NotChecked=0, Total=3422 [2025-03-19 15:50:11,524 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:11,524 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:11,524 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.288135593220339) internal successors, (194), 58 states have internal predecessors, (194), 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) [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:11,524 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:11,924 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:11,925 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:11,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-19 15:50:12,125 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:12,125 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:12,126 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:12,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1751792390, now seen corresponding path program 11 times [2025-03-19 15:50:12,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:12,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833150529] [2025-03-19 15:50:12,126 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 15:50:12,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:12,137 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 88 statements into 10 equivalence classes. [2025-03-19 15:50:12,164 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 88 of 88 statements. [2025-03-19 15:50:12,164 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-03-19 15:50:12,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 172 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:50:12,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:12,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833150529] [2025-03-19 15:50:12,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833150529] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:12,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817090329] [2025-03-19 15:50:12,644 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 15:50:12,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:12,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:12,645 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) [2025-03-19 15:50:12,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-19 15:50:12,692 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 88 statements into 10 equivalence classes. [2025-03-19 15:50:12,774 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 88 of 88 statements. [2025-03-19 15:50:12,774 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-03-19 15:50:12,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:12,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-19 15:50:12,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 270 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:50:13,523 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 151 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:50:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817090329] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:14,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:14,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 30, 24] total 73 [2025-03-19 15:50:14,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502721688] [2025-03-19 15:50:14,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:14,055 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2025-03-19 15:50:14,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:14,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2025-03-19 15:50:14,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1165, Invalid=4237, Unknown=0, NotChecked=0, Total=5402 [2025-03-19 15:50:14,056 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:14,056 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:14,057 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 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) [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:14,057 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:14,200 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:14,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:14,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:14,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:14,201 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:50:14,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-19 15:50:14,404 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,SelfDestructingSolverStorable13 [2025-03-19 15:50:14,404 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:14,404 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:14,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2010774167, now seen corresponding path program 12 times [2025-03-19 15:50:14,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:14,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744322525] [2025-03-19 15:50:14,404 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 15:50:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:14,413 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 89 statements into 10 equivalence classes. [2025-03-19 15:50:14,459 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 89 of 89 statements. [2025-03-19 15:50:14,459 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-03-19 15:50:14,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 1 proven. 161 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-19 15:50:14,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:14,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744322525] [2025-03-19 15:50:14,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744322525] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:14,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050238100] [2025-03-19 15:50:14,739 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 15:50:14,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:14,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:14,741 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) [2025-03-19 15:50:14,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-19 15:50:14,794 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 89 statements into 10 equivalence classes. [2025-03-19 15:50:16,710 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 89 of 89 statements. [2025-03-19 15:50:16,711 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-03-19 15:50:16,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:16,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-03-19 15:50:16,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-03-19 15:50:16,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:16,844 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-03-19 15:50:16,844 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 28 treesize of output 11 [2025-03-19 15:50:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-03-19 15:50:16,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050238100] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:16,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:16,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2025-03-19 15:50:16,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440182027] [2025-03-19 15:50:16,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:16,905 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-19 15:50:16,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:16,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-19 15:50:16,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-19 15:50:16,905 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:16,905 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:16,906 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 12 states have internal predecessors, (62), 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) [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:50:16,906 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:17,028 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:50:17,029 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:50:17,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-19 15:50:17,229 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-19 15:50:17,229 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:17,230 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash -166778111, now seen corresponding path program 13 times [2025-03-19 15:50:17,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:17,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102296584] [2025-03-19 15:50:17,230 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 15:50:17,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:17,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-19 15:50:17,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-19 15:50:17,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:50:17,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 183 proven. 360 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-19 15:50:17,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:17,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102296584] [2025-03-19 15:50:17,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102296584] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:17,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477566300] [2025-03-19 15:50:17,846 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 15:50:17,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:17,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:17,847 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:50:17,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-19 15:50:17,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-19 15:50:17,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-19 15:50:17,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:50:17,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:17,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-19 15:50:17,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 465 proven. 66 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-19 15:50:18,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:19,216 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 303 proven. 228 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-19 15:50:19,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477566300] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:19,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:19,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28, 25] total 78 [2025-03-19 15:50:19,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826519997] [2025-03-19 15:50:19,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:19,217 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2025-03-19 15:50:19,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:19,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2025-03-19 15:50:19,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1237, Invalid=4925, Unknown=0, NotChecked=0, Total=6162 [2025-03-19 15:50:19,219 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:19,219 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:19,219 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.5063291139240507) internal successors, (277), 78 states have internal predecessors, (277), 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) [2025-03-19 15:50:19,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:19,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:19,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:19,219 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:50:19,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:50:19,472 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:50:19,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-19 15:50:19,672 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-19 15:50:19,673 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:19,673 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1350081758, now seen corresponding path program 14 times [2025-03-19 15:50:19,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:19,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296361520] [2025-03-19 15:50:19,673 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:50:19,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:19,682 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-03-19 15:50:19,694 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-19 15:50:19,694 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:50:19,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 445 proven. 114 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 15:50:20,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:20,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296361520] [2025-03-19 15:50:20,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296361520] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:20,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959845860] [2025-03-19 15:50:20,223 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:50:20,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:20,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:20,224 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:50:20,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-19 15:50:20,287 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-03-19 15:50:20,327 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-19 15:50:20,327 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:50:20,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:20,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-03-19 15:50:20,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:21,093 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 473 proven. 78 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-19 15:50:21,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 287 proven. 264 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-19 15:50:21,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959845860] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:50:21,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:50:21,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 31, 28] total 84 [2025-03-19 15:50:21,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035200309] [2025-03-19 15:50:21,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:50:21,832 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2025-03-19 15:50:21,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:50:21,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2025-03-19 15:50:21,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1680, Invalid=5460, Unknown=0, NotChecked=0, Total=7140 [2025-03-19 15:50:21,834 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:21,834 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:50:21,835 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 3.376470588235294) internal successors, (287), 84 states have internal predecessors, (287), 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) [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:50:21,835 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:50:22,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:50:22,145 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:50:22,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-19 15:50:22,345 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-19 15:50:22,346 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:50:22,346 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:50:22,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1128097441, now seen corresponding path program 15 times [2025-03-19 15:50:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:50:22,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741028485] [2025-03-19 15:50:22,346 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:50:22,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:50:22,357 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 112 statements into 13 equivalence classes. [2025-03-19 15:50:22,488 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 88 of 112 statements. [2025-03-19 15:50:22,488 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-19 15:50:22,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 18 proven. 465 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-19 15:50:24,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:50:24,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741028485] [2025-03-19 15:50:24,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741028485] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:50:24,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301261189] [2025-03-19 15:50:24,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:50:24,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:50:24,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:50:24,018 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:50:24,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-19 15:50:24,086 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 112 statements into 13 equivalence classes. [2025-03-19 15:50:25,778 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 88 of 112 statements. [2025-03-19 15:50:25,778 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-19 15:50:25,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:50:25,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 102 conjuncts are in the unsatisfiable core [2025-03-19 15:50:25,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:50:25,930 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-19 15:50:25,956 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 19 treesize of output 1 [2025-03-19 15:50:25,982 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 19 treesize of output 1 [2025-03-19 15:50:26,009 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 19 treesize of output 1 [2025-03-19 15:50:26,036 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 19 treesize of output 1 [2025-03-19 15:50:26,064 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 19 treesize of output 1 [2025-03-19 15:50:26,096 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 19 treesize of output 1 [2025-03-19 15:50:27,133 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 15:50:27,134 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 73 treesize of output 48 [2025-03-19 15:50:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 325 proven. 159 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-19 15:50:27,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:50:59,151 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 351 treesize of output 341 [2025-03-19 15:51:01,930 INFO L325 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2025-03-19 15:51:01,978 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 73196279442 treesize of output 72960967774 [2025-03-19 15:51:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 1 proven. 483 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-19 15:51:10,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301261189] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:51:10,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:51:10,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 32, 32] total 90 [2025-03-19 15:51:10,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030082538] [2025-03-19 15:51:10,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:51:10,398 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2025-03-19 15:51:10,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:51:10,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2025-03-19 15:51:10,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1030, Invalid=7150, Unknown=10, NotChecked=0, Total=8190 [2025-03-19 15:51:10,400 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:10,400 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:51:10,401 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 2.4835164835164836) internal successors, (226), 90 states have internal predecessors, (226), 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) [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:10,401 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:15,890 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:15,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-19 15:51:16,090 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-19 15:51:16,091 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:51:16,091 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:51:16,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1458449090, now seen corresponding path program 16 times [2025-03-19 15:51:16,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:51:16,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640918235] [2025-03-19 15:51:16,091 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 15:51:16,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:51:16,100 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 113 statements into 2 equivalence classes. [2025-03-19 15:51:16,111 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-19 15:51:16,112 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 15:51:16,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:51:16,682 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 36 proven. 336 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-03-19 15:51:16,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:51:16,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640918235] [2025-03-19 15:51:16,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640918235] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:51:16,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606984192] [2025-03-19 15:51:16,682 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 15:51:16,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:51:16,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:51:16,685 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:51:16,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-19 15:51:16,753 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 113 statements into 2 equivalence classes. [2025-03-19 15:51:16,836 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-19 15:51:16,837 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 15:51:16,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:51:16,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 59 conjuncts are in the unsatisfiable core [2025-03-19 15:51:16,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:51:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 483 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:51:21,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:51:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 379 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:51:25,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606984192] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:51:25,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:51:25,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 43, 33] total 84 [2025-03-19 15:51:25,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000570686] [2025-03-19 15:51:25,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:51:25,354 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2025-03-19 15:51:25,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:51:25,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2025-03-19 15:51:25,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1587, Invalid=5553, Unknown=0, NotChecked=0, Total=7140 [2025-03-19 15:51:25,357 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:25,357 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:51:25,357 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 3.176470588235294) internal successors, (270), 84 states have internal predecessors, (270), 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) [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:25,357 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:27,667 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:27,667 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:51:27,667 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:51:27,667 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:27,668 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:51:27,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-19 15:51:27,868 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:51:27,868 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:51:27,869 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:51:27,869 INFO L85 PathProgramCache]: Analyzing trace with hash 773799962, now seen corresponding path program 17 times [2025-03-19 15:51:27,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:51:27,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400392855] [2025-03-19 15:51:27,869 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 15:51:27,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:51:27,878 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 120 statements into 14 equivalence classes. [2025-03-19 15:51:27,909 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) and asserted 120 of 120 statements. [2025-03-19 15:51:27,909 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2025-03-19 15:51:27,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:51:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 355 proven. 327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:51:29,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:51:29,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400392855] [2025-03-19 15:51:29,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400392855] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:51:29,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018537634] [2025-03-19 15:51:29,732 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 15:51:29,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:51:29,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:51:29,734 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:51:29,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-19 15:51:29,798 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 120 statements into 14 equivalence classes. [2025-03-19 15:51:30,461 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) and asserted 120 of 120 statements. [2025-03-19 15:51:30,461 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2025-03-19 15:51:30,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:51:30,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 63 conjuncts are in the unsatisfiable core [2025-03-19 15:51:30,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:51:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 562 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:51:35,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:51:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 449 proven. 233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 15:51:40,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018537634] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:51:40,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:51:40,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 46, 35] total 112 [2025-03-19 15:51:40,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863074880] [2025-03-19 15:51:40,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:51:40,135 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2025-03-19 15:51:40,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:51:40,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2025-03-19 15:51:40,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2548, Invalid=10108, Unknown=0, NotChecked=0, Total=12656 [2025-03-19 15:51:40,139 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:40,139 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:51:40,139 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 3.0088495575221237) internal successors, (340), 112 states have internal predecessors, (340), 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) [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:51:40,139 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:40,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:51:40,867 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:40,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-19 15:51:41,067 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:51:41,067 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:51:41,067 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:51:41,068 INFO L85 PathProgramCache]: Analyzing trace with hash -711081545, now seen corresponding path program 18 times [2025-03-19 15:51:41,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:51:41,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536535909] [2025-03-19 15:51:41,068 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 15:51:41,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:51:41,077 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 121 statements into 14 equivalence classes. [2025-03-19 15:51:41,146 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) and asserted 121 of 121 statements. [2025-03-19 15:51:41,147 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2025-03-19 15:51:41,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:51:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 0 proven. 696 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 15:51:43,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:51:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536535909] [2025-03-19 15:51:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536535909] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:51:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291155121] [2025-03-19 15:51:43,904 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 15:51:43,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:51:43,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:51:43,906 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:51:43,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-19 15:51:43,973 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 121 statements into 14 equivalence classes. [2025-03-19 15:51:47,008 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) and asserted 121 of 121 statements. [2025-03-19 15:51:47,009 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2025-03-19 15:51:47,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:51:47,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 112 conjuncts are in the unsatisfiable core [2025-03-19 15:51:47,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:51:48,510 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 23 treesize of output 1 [2025-03-19 15:51:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 0 proven. 688 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-19 15:51:52,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:51:59,327 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 43 treesize of output 39 [2025-03-19 15:51:59,343 INFO L325 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-03-19 15:51:59,343 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 61 treesize of output 47 [2025-03-19 15:51:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-03-19 15:51:59,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291155121] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:51:59,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:51:59,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 40, 30] total 102 [2025-03-19 15:51:59,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097604592] [2025-03-19 15:51:59,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:51:59,633 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2025-03-19 15:51:59,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:51:59,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2025-03-19 15:51:59,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=663, Invalid=9843, Unknown=0, NotChecked=0, Total=10506 [2025-03-19 15:51:59,634 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:59,634 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:51:59,634 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.0679611650485437) internal successors, (316), 102 states have internal predecessors, (316), 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) [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:51:59,635 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:15,000 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:15,001 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-03-19 15:52:15,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-19 15:52:15,201 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:52:15,202 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:52:15,202 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:52:15,202 INFO L85 PathProgramCache]: Analyzing trace with hash -822905470, now seen corresponding path program 19 times [2025-03-19 15:52:15,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:52:15,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026607630] [2025-03-19 15:52:15,202 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 15:52:15,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:52:15,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-19 15:52:15,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-19 15:52:15,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:52:15,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:52:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 422 proven. 1081 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-19 15:52:17,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:52:17,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026607630] [2025-03-19 15:52:17,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026607630] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:52:17,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904588616] [2025-03-19 15:52:17,797 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-19 15:52:17,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:52:17,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:52:17,799 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:52:17,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-19 15:52:17,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-19 15:52:17,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-19 15:52:17,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 15:52:17,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:52:17,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-03-19 15:52:17,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:52:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 1335 proven. 153 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-19 15:52:22,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:52:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 1105 proven. 383 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-19 15:52:27,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904588616] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:52:27,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:52:27,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 38] total 114 [2025-03-19 15:52:27,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929116515] [2025-03-19 15:52:27,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:52:27,001 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2025-03-19 15:52:27,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:52:27,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2025-03-19 15:52:27,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2647, Invalid=10463, Unknown=0, NotChecked=0, Total=13110 [2025-03-19 15:52:27,003 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:27,003 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:52:27,004 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 3.5217391304347827) internal successors, (405), 114 states have internal predecessors, (405), 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) [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2025-03-19 15:52:27,004 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:28,840 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-03-19 15:52:28,841 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-19 15:52:28,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-19 15:52:29,041 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-19 15:52:29,042 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:52:29,042 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:52:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash -515836449, now seen corresponding path program 20 times [2025-03-19 15:52:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:52:29,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577365170] [2025-03-19 15:52:29,042 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:52:29,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:52:29,054 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 171 statements into 2 equivalence classes. [2025-03-19 15:52:29,072 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 171 of 171 statements. [2025-03-19 15:52:29,072 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:52:29,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:52:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1581 backedges. 893 proven. 650 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-19 15:52:31,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:52:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577365170] [2025-03-19 15:52:31,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577365170] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:52:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483419365] [2025-03-19 15:52:31,223 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 15:52:31,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:52:31,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:52:31,224 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:52:31,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-19 15:52:31,303 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 171 statements into 2 equivalence classes. [2025-03-19 15:52:31,348 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 171 of 171 statements. [2025-03-19 15:52:31,348 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 15:52:31,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:52:31,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-19 15:52:31,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:52:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1581 backedges. 1362 proven. 171 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-19 15:52:35,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:52:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1581 backedges. 1045 proven. 488 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-19 15:52:40,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483419365] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 15:52:40,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 15:52:40,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 42, 40] total 119 [2025-03-19 15:52:40,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057162435] [2025-03-19 15:52:40,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 15:52:40,374 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2025-03-19 15:52:40,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 15:52:40,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2025-03-19 15:52:40,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3248, Invalid=11032, Unknown=0, NotChecked=0, Total=14280 [2025-03-19 15:52:40,376 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:40,376 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 15:52:40,376 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 3.5) internal successors, (420), 119 states have internal predecessors, (420), 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) [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2025-03-19 15:52:40,376 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-03-19 15:52:42,265 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-19 15:52:42,266 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-19 15:52:42,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-19 15:52:42,466 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:52:42,466 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-19 15:52:42,467 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 15:52:42,467 INFO L85 PathProgramCache]: Analyzing trace with hash 413368610, now seen corresponding path program 21 times [2025-03-19 15:52:42,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 15:52:42,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614665344] [2025-03-19 15:52:42,467 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:52:42,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 15:52:42,479 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 172 statements into 22 equivalence classes. [2025-03-19 15:52:42,604 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 106 of 172 statements. [2025-03-19 15:52:42,604 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-19 15:52:42,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:52:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 143 proven. 989 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2025-03-19 15:52:49,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 15:52:49,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614665344] [2025-03-19 15:52:49,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614665344] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 15:52:49,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645898102] [2025-03-19 15:52:49,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 15:52:49,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 15:52:49,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 15:52:49,880 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-19 15:52:49,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-19 15:52:49,965 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 172 statements into 22 equivalence classes. [2025-03-19 15:52:53,449 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 106 of 172 statements. [2025-03-19 15:52:53,449 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-19 15:52:53,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 15:52:53,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 167 conjuncts are in the unsatisfiable core [2025-03-19 15:52:53,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 15:52:53,559 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 [2025-03-19 15:52:53,653 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-19 15:52:53,727 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 [2025-03-19 15:52:53,835 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 [2025-03-19 15:52:53,935 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 [2025-03-19 15:52:54,034 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 [2025-03-19 15:52:54,130 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 [2025-03-19 15:52:54,240 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 [2025-03-19 15:52:54,338 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 [2025-03-19 15:52:54,456 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 [2025-03-19 15:52:54,573 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 [2025-03-19 15:52:54,696 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 [2025-03-19 15:52:54,828 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 [2025-03-19 15:52:54,960 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 [2025-03-19 15:52:55,097 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 [2025-03-19 15:52:55,216 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 [2025-03-19 15:52:55,339 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 [2025-03-19 15:52:55,485 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 [2025-03-19 15:52:55,628 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 [2025-03-19 15:53:02,899 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,911 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,914 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,917 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,920 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,922 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,925 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:02,928 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 15:53:03,005 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 15:53:03,006 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 37 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 131 treesize of output 95 [2025-03-19 15:53:03,487 WARN L656 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-19 15:53:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 628 proven. 540 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2025-03-19 15:53:03,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 15:53:41,245 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 1666 treesize of output 1646