./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/stack-1.i --full-output --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6f232940 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread/stack-1.i -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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --traceabstraction.use.conditional.por.in.concurrent.analysis false --traceabstraction.commutativity.condition.synthesis NONE --traceabstraction.partial.order.reduction.in.concurrent.analysis PERSISTENT_SETS --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6f23294-m [2025-03-19 23:33:22,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-19 23:33:22,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-03-19 23:33:22,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-19 23:33:22,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-19 23:33:22,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-19 23:33:22,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-19 23:33:22,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-19 23:33:22,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-19 23:33:22,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-19 23:33:22,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-19 23:33:22,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * Use SBE=true [2025-03-19 23:33:22,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-19 23:33:22,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-19 23:33:22,960 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-19 23:33:22,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 23:33:22,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-03-19 23:33:22,961 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-03-19 23:33:22,961 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 -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Partial Order Reduction in concurrent analysis -> PERSISTENT_SETS [2025-03-19 23:33:23,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-19 23:33:23,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-19 23:33:23,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-19 23:33:23,213 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-19 23:33:23,213 INFO L274 PluginConnector]: CDTParser initialized [2025-03-19 23:33:23,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread/stack-1.i [2025-03-19 23:33:24,463 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3af6b838a/51b3973892ff4e5d8e498f1ba344ff1f/FLAG4d10138b5 [2025-03-19 23:33:24,716 INFO L389 CDTParser]: Found 1 translation units. [2025-03-19 23:33:24,717 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/stack-1.i [2025-03-19 23:33:24,732 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3af6b838a/51b3973892ff4e5d8e498f1ba344ff1f/FLAG4d10138b5 [2025-03-19 23:33:25,513 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3af6b838a/51b3973892ff4e5d8e498f1ba344ff1f [2025-03-19 23:33:25,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-19 23:33:25,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-19 23:33:25,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-19 23:33:25,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-19 23:33:25,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-19 23:33:25,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:25,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddaaa71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25, skipping insertion in model container [2025-03-19 23:33:25,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:25,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-19 23:33:25,846 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/pthread/stack-1.i[41520,41533] [2025-03-19 23:33:25,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 23:33:25,877 INFO L200 MainTranslator]: Completed pre-run [2025-03-19 23:33:25,920 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/pthread/stack-1.i[41520,41533] [2025-03-19 23:33:25,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-19 23:33:25,973 INFO L204 MainTranslator]: Completed translation [2025-03-19 23:33:25,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25 WrapperNode [2025-03-19 23:33:25,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-19 23:33:25,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-19 23:33:25,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-19 23:33:25,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-19 23:33:25,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:25,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,018 INFO L138 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 144 [2025-03-19 23:33:26,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-19 23:33:26,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-19 23:33:26,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-19 23:33:26,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-19 23:33:26,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,036 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-19 23:33:26,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-19 23:33:26,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-19 23:33:26,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-19 23:33:26,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (1/1) ... [2025-03-19 23:33:26,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-19 23:33:26,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:26,073 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 23:33:26,076 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 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-03-19 23:33:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-03-19 23:33:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-19 23:33:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-19 23:33:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-19 23:33:26,095 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 23:33:26,192 INFO L234 CfgBuilder]: Building ICFG [2025-03-19 23:33:26,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-19 23:33:26,363 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-19 23:33:26,364 INFO L283 CfgBuilder]: Performing block encoding [2025-03-19 23:33:26,511 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-19 23:33:26,511 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-19 23:33:26,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 11:33:26 BoogieIcfgContainer [2025-03-19 23:33:26,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-19 23:33:26,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-19 23:33:26,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-19 23:33:26,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-19 23:33:26,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 11:33:25" (1/3) ... [2025-03-19 23:33:26,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248827b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 11:33:26, skipping insertion in model container [2025-03-19 23:33:26,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 11:33:25" (2/3) ... [2025-03-19 23:33:26,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248827b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 11:33:26, skipping insertion in model container [2025-03-19 23:33:26,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 11:33:26" (3/3) ... [2025-03-19 23:33:26,523 INFO L128 eAbstractionObserver]: Analyzing ICFG stack-1.i [2025-03-19 23:33:26,533 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-19 23:33:26,535 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack-1.i that has 3 procedures, 30 locations, 32 edges, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-19 23:33:26,535 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-19 23:33:26,588 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-19 23:33:26,620 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:33:26,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-03-19 23:33:26,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:26,624 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 23:33:26,626 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 23:33:26,683 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 23:33:26,690 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2025-03-19 23:33:26,697 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;@1dc6451a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:33:26,697 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-19 23:33:26,873 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:26,878 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:26,878 INFO L85 PathProgramCache]: Analyzing trace with hash -97613199, now seen corresponding path program 1 times [2025-03-19 23:33:26,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:26,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156941837] [2025-03-19 23:33:26,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:26,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:26,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-19 23:33:26,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-19 23:33:26,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:26,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:27,151 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 23:33:27,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:27,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156941837] [2025-03-19 23:33:27,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156941837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:27,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:33:27,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 23:33:27,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010892789] [2025-03-19 23:33:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:27,156 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 23:33:27,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:27,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 23:33:27,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 23:33:27,169 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:27,170 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:27,171 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 23:33:27,171 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:27,476 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:27,476 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-19 23:33:27,476 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:27,477 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:27,477 INFO L85 PathProgramCache]: Analyzing trace with hash 243287602, now seen corresponding path program 1 times [2025-03-19 23:33:27,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:27,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365327675] [2025-03-19 23:33:27,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:27,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:27,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-19 23:33:27,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-19 23:33:27,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:27,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:27,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:27,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365327675] [2025-03-19 23:33:27,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365327675] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:27,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:33:27,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-19 23:33:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684179726] [2025-03-19 23:33:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:27,624 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 23:33:27,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:27,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 23:33:27,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 23:33:27,625 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:27,626 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:27,626 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 23:33:27,626 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:27,626 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:27,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:27,744 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:27,745 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-19 23:33:27,745 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:27,745 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash -918075878, now seen corresponding path program 2 times [2025-03-19 23:33:27,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:27,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437267024] [2025-03-19 23:33:27,746 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:27,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:27,772 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-03-19 23:33:27,790 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-03-19 23:33:27,790 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:27,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:28,050 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 23:33:28,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:28,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437267024] [2025-03-19 23:33:28,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437267024] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:28,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085110226] [2025-03-19 23:33:28,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:28,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:28,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:28,053 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 23:33:28,055 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 23:33:28,129 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-03-19 23:33:28,173 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-03-19 23:33:28,173 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:28,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:28,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-19 23:33:28,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:28,201 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-19 23:33:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 23:33:28,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-19 23:33:28,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085110226] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:28,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-19 23:33:28,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-19 23:33:28,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998552109] [2025-03-19 23:33:28,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:28,220 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 23:33:28,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:28,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 23:33:28,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-19 23:33:28,220 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:28,220 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:28,220 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 23:33:28,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,220 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:28,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:28,265 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 23:33:28,458 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-19 23:33:28,459 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:28,459 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:28,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1723702536, now seen corresponding path program 1 times [2025-03-19 23:33:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83466637] [2025-03-19 23:33:28,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:28,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:28,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-19 23:33:28,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-19 23:33:28,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:28,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:28,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:28,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83466637] [2025-03-19 23:33:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83466637] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498226415] [2025-03-19 23:33:28,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:28,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:28,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:28,525 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 23:33:28,527 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 23:33:28,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-19 23:33:28,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-19 23:33:28,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:28,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:28,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-19 23:33:28,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:28,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:28,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498226415] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:28,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:28,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-19 23:33:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078741503] [2025-03-19 23:33:28,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:28,682 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-19 23:33:28,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:28,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-19 23:33:28,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-19 23:33:28,683 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:28,683 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:28,683 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 23:33:28,684 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,684 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,684 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:28,684 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:28,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:28,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:28,774 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:28,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-19 23:33:28,975 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:28,975 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:28,975 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:28,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1768920685, now seen corresponding path program 2 times [2025-03-19 23:33:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:28,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130751232] [2025-03-19 23:33:28,976 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:28,994 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-03-19 23:33:29,006 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-03-19 23:33:29,006 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:29,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-03-19 23:33:29,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:29,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130751232] [2025-03-19 23:33:29,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130751232] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:29,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:33:29,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 23:33:29,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570386551] [2025-03-19 23:33:29,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:29,151 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 23:33:29,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:29,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 23:33:29,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-19 23:33:29,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:29,152 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:29,152 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 23:33:29,152 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,152 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,152 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:29,152 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:29,152 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:29,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:29,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:29,214 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,214 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-19 23:33:29,214 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:29,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:29,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1894463043, now seen corresponding path program 1 times [2025-03-19 23:33:29,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:29,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798349361] [2025-03-19 23:33:29,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:29,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:29,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-19 23:33:29,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 23:33:29,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:29,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:29,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:29,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798349361] [2025-03-19 23:33:29,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798349361] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:29,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533051596] [2025-03-19 23:33:29,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:29,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:29,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:29,384 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 23:33:29,385 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 23:33:29,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-19 23:33:29,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-19 23:33:29,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:29,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:29,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-19 23:33:29,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:29,490 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:29,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:29,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:29,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533051596] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:29,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:29,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-19 23:33:29,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189418212] [2025-03-19 23:33:29,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:29,680 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-19 23:33:29,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:29,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-19 23:33:29,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-19 23:33:29,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:29,682 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:29,682 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 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 23:33:29,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:29,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:29,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,682 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:29,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:29,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:29,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:29,823 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 23:33:29,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-19 23:33:30,024 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 23:33:30,024 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:30,024 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1175290014, now seen corresponding path program 1 times [2025-03-19 23:33:30,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:30,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473670317] [2025-03-19 23:33:30,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:30,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:30,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-19 23:33:30,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-19 23:33:30,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:30,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-19 23:33:30,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:30,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473670317] [2025-03-19 23:33:30,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473670317] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:30,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409473598] [2025-03-19 23:33:30,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:30,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:30,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:30,235 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 23:33:30,236 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 23:33:30,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-19 23:33:30,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-19 23:33:30,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:30,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:30,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-19 23:33:30,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-19 23:33:30,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-19 23:33:30,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409473598] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:30,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:30,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2025-03-19 23:33:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541179657] [2025-03-19 23:33:30,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:30,514 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-19 23:33:30,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:30,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-19 23:33:30,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-19 23:33:30,515 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:30,515 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:30,515 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 23:33:30,515 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:30,515 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:30,515 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:30,515 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:30,515 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:30,515 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 23:33:30,515 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:30,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:30,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:30,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:30,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:30,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:30,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-19 23:33:30,609 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:30,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-19 23:33:30,810 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 23:33:30,810 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:30,811 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1823034947, now seen corresponding path program 2 times [2025-03-19 23:33:30,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:30,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167712799] [2025-03-19 23:33:30,811 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:30,827 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 91 statements into 2 equivalence classes. [2025-03-19 23:33:30,849 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 91 of 91 statements. [2025-03-19 23:33:30,850 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:30,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 142 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:31,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:31,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167712799] [2025-03-19 23:33:31,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167712799] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:31,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142159760] [2025-03-19 23:33:31,063 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:31,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:31,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:31,065 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 23:33:31,066 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 23:33:31,146 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 91 statements into 2 equivalence classes. [2025-03-19 23:33:31,187 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 91 of 91 statements. [2025-03-19 23:33:31,187 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:31,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:31,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-19 23:33:31,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-19 23:33:31,245 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-19 23:33:31,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142159760] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:31,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-19 23:33:31,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 12 [2025-03-19 23:33:31,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644182387] [2025-03-19 23:33:31,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:31,246 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-19 23:33:31,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:31,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-19 23:33:31,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2025-03-19 23:33:31,247 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:31,247 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:31,247 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 23:33:31,247 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:31,247 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:31,247 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:31,247 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:31,249 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:31,249 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-03-19 23:33:31,249 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:31,249 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:31,427 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:31,428 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:31,428 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:31,428 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:31,428 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:31,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-19 23:33:31,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:31,430 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:31,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-19 23:33:31,630 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 23:33:31,630 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:31,632 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1278169613, now seen corresponding path program 1 times [2025-03-19 23:33:31,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805314378] [2025-03-19 23:33:31,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:31,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:31,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-19 23:33:31,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-19 23:33:31,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:31,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-19 23:33:31,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:31,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805314378] [2025-03-19 23:33:31,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805314378] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:31,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270409291] [2025-03-19 23:33:31,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:31,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:31,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:31,919 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 23:33:31,921 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 23:33:32,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-19 23:33:32,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-19 23:33:32,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:32,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:32,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-19 23:33:32,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:32,073 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:32,121 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-19 23:33:32,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:32,324 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-19 23:33:32,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270409291] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:32,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:32,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 6] total 15 [2025-03-19 23:33:32,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298837573] [2025-03-19 23:33:32,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:32,324 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-19 23:33:32,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:32,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-19 23:33:32,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2025-03-19 23:33:32,325 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:32,325 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:32,325 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 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 23:33:32,325 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:32,325 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:32,325 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:32,325 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:32,325 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:32,326 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-03-19 23:33:32,326 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:32,326 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:32,326 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:32,775 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:32,776 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:32,783 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 23:33:32,977 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 23:33:32,977 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:32,978 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:32,978 INFO L85 PathProgramCache]: Analyzing trace with hash 692896548, now seen corresponding path program 2 times [2025-03-19 23:33:32,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:32,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927069663] [2025-03-19 23:33:32,978 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:32,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:32,990 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-03-19 23:33:33,033 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-03-19 23:33:33,033 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:33,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:33,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927069663] [2025-03-19 23:33:33,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927069663] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:33,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644609644] [2025-03-19 23:33:33,615 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:33,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:33,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:33,616 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 23:33:33,618 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 23:33:33,711 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-03-19 23:33:33,749 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-03-19 23:33:33,749 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:33,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:33,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-19 23:33:33,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:33,775 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:33,868 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:33,908 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:33,941 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:34,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-19 23:33:34,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644609644] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:34,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:34,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 8] total 26 [2025-03-19 23:33:34,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65854584] [2025-03-19 23:33:34,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:34,234 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-19 23:33:34,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:34,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-19 23:33:34,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=428, Unknown=0, NotChecked=0, Total=650 [2025-03-19 23:33:34,236 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:34,236 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:34,236 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.8076923076923075) internal successors, (177), 26 states have internal predecessors, (177), 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 23:33:34,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:34,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:34,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:34,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:34,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:34,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-03-19 23:33:34,236 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:34,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:34,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:34,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:34,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:34,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-19 23:33:35,050 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 23:33:35,050 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:35,051 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -396621548, now seen corresponding path program 3 times [2025-03-19 23:33:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909191131] [2025-03-19 23:33:35,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:33:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:35,061 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 43 statements into 4 equivalence classes. [2025-03-19 23:33:35,121 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 43 of 43 statements. [2025-03-19 23:33:35,121 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-19 23:33:35,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:35,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:35,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909191131] [2025-03-19 23:33:35,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909191131] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:35,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751997236] [2025-03-19 23:33:35,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:33:35,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:35,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:35,414 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 23:33:35,415 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 23:33:35,503 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 43 statements into 4 equivalence classes. [2025-03-19 23:33:35,548 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 43 of 43 statements. [2025-03-19 23:33:35,548 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-19 23:33:35,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:35,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-19 23:33:35,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:35,567 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:35,589 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:35,615 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:35,723 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 32 treesize of output 19 [2025-03-19 23:33:35,754 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 23:33:35,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:35,834 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 23:33:35,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751997236] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:35,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:35,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 7] total 20 [2025-03-19 23:33:35,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808473659] [2025-03-19 23:33:35,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:35,834 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-19 23:33:35,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:35,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-19 23:33:35,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2025-03-19 23:33:35,835 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:35,835 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:35,836 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.666666666666667) internal successors, (98), 20 states have internal predecessors, (98), 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 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:35,836 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-19 23:33:36,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-19 23:33:36,641 INFO L791 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-19 23:33:36,648 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 23:33:36,841 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 23:33:36,845 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1] [2025-03-19 23:33:36,846 INFO L320 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork1 was SAFE (1/3) [2025-03-19 23:33:36,848 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:33:36,848 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 23:33:36,849 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-03-19 23:33:36,851 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;@1dc6451a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:33:36,851 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-19 23:33:36,853 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2025-03-19 23:33:36,853 INFO L791 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-03-19 23:33:36,854 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-03-19 23:33:36,855 INFO L320 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2025-03-19 23:33:36,856 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:33:36,856 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-03-19 23:33:36,856 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork0 ======== [2025-03-19 23:33:36,856 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;@1dc6451a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-19 23:33:36,856 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-19 23:33:36,868 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:36,870 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1943814228, now seen corresponding path program 1 times [2025-03-19 23:33:36,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:36,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693133408] [2025-03-19 23:33:36,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:36,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:36,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-19 23:33:36,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-19 23:33:36,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:36,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:36,935 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 23:33:36,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:36,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693133408] [2025-03-19 23:33:36,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693133408] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:36,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:33:36,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 23:33:36,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737511557] [2025-03-19 23:33:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:36,936 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 23:33:36,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:36,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 23:33:36,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 23:33:36,936 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:36,936 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:36,936 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 23:33:36,937 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:36,967 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:36,968 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-19 23:33:36,968 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:36,969 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:36,969 INFO L85 PathProgramCache]: Analyzing trace with hash -999052245, now seen corresponding path program 1 times [2025-03-19 23:33:36,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:36,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809109508] [2025-03-19 23:33:36,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:36,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:36,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-19 23:33:36,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-19 23:33:36,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:36,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:37,245 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 23:33:37,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:37,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809109508] [2025-03-19 23:33:37,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809109508] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:37,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:33:37,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-19 23:33:37,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089983757] [2025-03-19 23:33:37,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:37,245 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-19 23:33:37,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:37,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-19 23:33:37,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-19 23:33:37,246 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:37,246 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:37,246 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 23:33:37,246 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,246 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:37,313 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,314 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:37,315 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-19 23:33:37,315 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:37,315 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash 121781325, now seen corresponding path program 1 times [2025-03-19 23:33:37,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:37,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820468366] [2025-03-19 23:33:37,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:37,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:37,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-19 23:33:37,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-19 23:33:37,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:37,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-19 23:33:37,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:37,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820468366] [2025-03-19 23:33:37,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820468366] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:37,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:33:37,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-19 23:33:37,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726032288] [2025-03-19 23:33:37,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:37,345 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-19 23:33:37,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:37,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-19 23:33:37,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-19 23:33:37,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:37,345 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:37,345 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 23:33:37,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:37,345 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:37,375 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,376 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:37,376 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,376 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-19 23:33:37,377 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:37,377 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:37,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1138878366, now seen corresponding path program 2 times [2025-03-19 23:33:37,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:37,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885508346] [2025-03-19 23:33:37,377 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:37,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:37,386 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-03-19 23:33:37,390 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-19 23:33:37,390 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:37,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:37,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:37,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885508346] [2025-03-19 23:33:37,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885508346] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:37,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377059831] [2025-03-19 23:33:37,435 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:37,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:37,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:37,437 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 23:33:37,439 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 23:33:37,537 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-03-19 23:33:37,558 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-19 23:33:37,558 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:37,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:37,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-19 23:33:37,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:37,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:37,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377059831] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:37,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-19 23:33:37,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2025-03-19 23:33:37,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723309023] [2025-03-19 23:33:37,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:37,659 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-19 23:33:37,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:37,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-19 23:33:37,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-19 23:33:37,659 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:37,659 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:37,659 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 23:33:37,659 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,659 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:37,659 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,659 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:37,698 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,698 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:37,698 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:37,698 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:37,705 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 23:33:37,899 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,SelfDestructingSolverStorable14 [2025-03-19 23:33:37,899 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:37,900 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:37,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1266040981, now seen corresponding path program 1 times [2025-03-19 23:33:37,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:37,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586645382] [2025-03-19 23:33:37,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:37,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:37,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-19 23:33:37,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-19 23:33:37,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:37,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:38,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:38,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586645382] [2025-03-19 23:33:38,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586645382] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:38,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016844513] [2025-03-19 23:33:38,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:38,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:38,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:38,206 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 23:33:38,208 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 23:33:38,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-19 23:33:38,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-19 23:33:38,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:38,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:38,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-19 23:33:38,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:38,354 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:38,445 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 23:33:38,497 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 56 treesize of output 32 [2025-03-19 23:33:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:38,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:38,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016844513] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:38,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:38,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2025-03-19 23:33:38,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129040380] [2025-03-19 23:33:38,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:38,757 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-19 23:33:38,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:38,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-19 23:33:38,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2025-03-19 23:33:38,757 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:38,757 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:38,758 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.625) internal successors, (106), 16 states have internal predecessors, (106), 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 23:33:38,758 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:38,758 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:38,758 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:38,758 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:38,758 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:39,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:39,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:39,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:39,248 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:39,249 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-19 23:33:39,256 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 23:33:39,453 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:39,453 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:39,453 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:39,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1903091937, now seen corresponding path program 2 times [2025-03-19 23:33:39,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:39,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479773307] [2025-03-19 23:33:39,453 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:39,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:39,467 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-03-19 23:33:39,494 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-03-19 23:33:39,494 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:39,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:40,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:40,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479773307] [2025-03-19 23:33:40,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479773307] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:40,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046971736] [2025-03-19 23:33:40,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:40,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:40,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:40,045 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 23:33:40,046 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 23:33:40,147 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-03-19 23:33:40,172 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-03-19 23:33:40,172 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:40,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:40,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-19 23:33:40,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:40,204 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:40,268 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 23:33:40,337 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 50 [2025-03-19 23:33:40,340 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 72 [2025-03-19 23:33:40,373 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 31 [2025-03-19 23:33:40,700 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 23:33:40,700 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 113 treesize of output 57 [2025-03-19 23:33:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:40,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:41,360 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 9 treesize of output 1 [2025-03-19 23:33:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:41,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046971736] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:41,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:41,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2025-03-19 23:33:41,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4237569] [2025-03-19 23:33:41,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:41,414 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-19 23:33:41,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:41,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-19 23:33:41,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2025-03-19 23:33:41,415 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:41,415 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:41,415 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.304347826086956) internal successors, (145), 22 states have internal predecessors, (145), 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 23:33:41,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:41,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:41,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:41,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:41,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-03-19 23:33:41,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:42,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:42,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:42,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:42,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:42,268 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:42,269 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:42,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-19 23:33:42,469 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,SelfDestructingSolverStorable16 [2025-03-19 23:33:42,469 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:42,469 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:42,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2063048096, now seen corresponding path program 3 times [2025-03-19 23:33:42,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:42,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856091387] [2025-03-19 23:33:42,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:33:42,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:42,499 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 184 statements into 10 equivalence classes. [2025-03-19 23:33:42,532 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 51 of 184 statements. [2025-03-19 23:33:42,532 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-19 23:33:42,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2025-03-19 23:33:43,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:43,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856091387] [2025-03-19 23:33:43,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856091387] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:43,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195679580] [2025-03-19 23:33:43,119 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-19 23:33:43,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:43,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:43,121 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 23:33:43,123 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 23:33:43,277 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 184 statements into 10 equivalence classes. [2025-03-19 23:33:43,315 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 51 of 184 statements. [2025-03-19 23:33:43,315 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-19 23:33:43,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:43,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-19 23:33:43,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:43,385 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 23:33:43,612 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 134 treesize of output 118 [2025-03-19 23:33:43,616 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 100 [2025-03-19 23:33:44,078 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 23:33:44,078 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 157 treesize of output 57 [2025-03-19 23:33:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2025-03-19 23:33:44,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 179 proven. 1 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2025-03-19 23:33:44,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195679580] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:44,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:44,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2025-03-19 23:33:44,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347724767] [2025-03-19 23:33:44,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:44,435 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-19 23:33:44,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:44,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-19 23:33:44,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2025-03-19 23:33:44,436 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:44,436 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:44,436 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.565217391304348) internal successors, (105), 23 states have internal predecessors, (105), 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 23:33:44,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:44,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:44,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:44,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:44,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:44,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:44,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:45,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:45,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:45,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:45,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:45,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:45,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:45,388 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:33:45,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-19 23:33:45,593 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,SelfDestructingSolverStorable17 [2025-03-19 23:33:45,593 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:45,594 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:45,594 INFO L85 PathProgramCache]: Analyzing trace with hash -974727787, now seen corresponding path program 1 times [2025-03-19 23:33:45,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:45,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246663037] [2025-03-19 23:33:45,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:45,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:45,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-03-19 23:33:45,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-03-19 23:33:45,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:45,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 323 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:46,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:46,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246663037] [2025-03-19 23:33:46,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246663037] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:46,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261304618] [2025-03-19 23:33:46,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:33:46,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:46,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:46,394 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 23:33:46,396 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 23:33:46,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-03-19 23:33:46,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-03-19 23:33:46,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:33:46,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:46,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-19 23:33:46,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-03-19 23:33:46,766 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-19 23:33:46,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261304618] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:46,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-19 23:33:46,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [29] total 35 [2025-03-19 23:33:46,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434404806] [2025-03-19 23:33:46,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:46,767 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-19 23:33:46,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:46,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-19 23:33:46,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=859, Unknown=0, NotChecked=0, Total=1190 [2025-03-19 23:33:46,768 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:46,768 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:46,768 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2025-03-19 23:33:46,768 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:47,038 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:47,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:47,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:47,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:47,039 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:47,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:47,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-19 23:33:47,040 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:47,048 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 23:33:47,240 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:47,240 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:47,240 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:47,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1908909110, now seen corresponding path program 4 times [2025-03-19 23:33:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:47,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22479849] [2025-03-19 23:33:47,241 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 23:33:47,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:47,260 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-03-19 23:33:47,304 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-03-19 23:33:47,304 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 23:33:47,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:48,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:48,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22479849] [2025-03-19 23:33:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22479849] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:48,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68056295] [2025-03-19 23:33:48,058 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-19 23:33:48,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:48,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:48,060 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 23:33:48,061 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 23:33:48,206 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 64 statements into 2 equivalence classes. [2025-03-19 23:33:48,256 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-03-19 23:33:48,257 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-19 23:33:48,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:48,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-19 23:33:48,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:48,302 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-19 23:33:48,380 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 23:33:48,465 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 62 treesize of output 46 [2025-03-19 23:33:48,469 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 64 [2025-03-19 23:33:48,494 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-03-19 23:33:48,651 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 111 treesize of output 83 [2025-03-19 23:33:48,656 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 99 [2025-03-19 23:33:48,696 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 61 [2025-03-19 23:33:49,837 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 23:33:49,838 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 203 treesize of output 107 [2025-03-19 23:33:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:49,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 26 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-19 23:33:50,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68056295] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:50,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:50,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 9] total 30 [2025-03-19 23:33:50,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082856736] [2025-03-19 23:33:50,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:50,223 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-19 23:33:50,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:50,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-19 23:33:50,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2025-03-19 23:33:50,224 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:50,224 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:50,224 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.9) internal successors, (177), 30 states have internal predecessors, (177), 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 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:50,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:51,801 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:51,801 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:51,801 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:51,801 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:51,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:51,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:51,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:33:51,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:51,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:33:51,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-19 23:33:52,003 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:52,003 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:52,003 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:52,003 INFO L85 PathProgramCache]: Analyzing trace with hash 947854779, now seen corresponding path program 5 times [2025-03-19 23:33:52,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:52,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820528998] [2025-03-19 23:33:52,003 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-19 23:33:52,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:52,030 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 70 statements into 6 equivalence classes. [2025-03-19 23:33:52,076 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 70 of 70 statements. [2025-03-19 23:33:52,077 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-19 23:33:52,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:33:52,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:52,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820528998] [2025-03-19 23:33:52,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820528998] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-19 23:33:52,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-19 23:33:52,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-19 23:33:52,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187713815] [2025-03-19 23:33:52,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-19 23:33:52,175 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-19 23:33:52,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:52,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-19 23:33:52,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-19 23:33:52,175 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:52,175 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:52,175 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-19 23:33:52,175 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:33:52,176 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:52,328 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:33:52,329 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:52,329 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-19 23:33:52,329 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:52,329 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:52,329 INFO L85 PathProgramCache]: Analyzing trace with hash 976483930, now seen corresponding path program 2 times [2025-03-19 23:33:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:52,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741891901] [2025-03-19 23:33:52,330 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:52,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:52,343 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-19 23:33:52,367 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-19 23:33:52,368 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:52,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:53,144 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 23:33:53,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:33:53,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741891901] [2025-03-19 23:33:53,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741891901] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:33:53,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876765661] [2025-03-19 23:33:53,144 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-19 23:33:53,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:33:53,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:33:53,146 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 23:33:53,148 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 23:33:53,302 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-19 23:33:53,352 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-19 23:33:53,352 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-19 23:33:53,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:33:53,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-19 23:33:53,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:33:53,378 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 23:33:53,577 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 128 treesize of output 112 [2025-03-19 23:33:53,586 INFO L325 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2025-03-19 23:33:53,587 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 112 treesize of output 95 [2025-03-19 23:33:53,940 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 207 treesize of output 179 [2025-03-19 23:33:53,977 INFO L325 Elim1Store]: treesize reduction 62, result has 25.3 percent of original size [2025-03-19 23:33:53,977 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 130 [2025-03-19 23:33:55,590 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 315 treesize of output 263 [2025-03-19 23:33:55,598 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 23:33:55,598 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 263 treesize of output 187 [2025-03-19 23:33:55,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 23:33:55,623 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 32 [2025-03-19 23:33:56,585 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 23:33:56,586 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 311 treesize of output 107 [2025-03-19 23:33:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 23:33:56,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:33:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 41 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-19 23:33:57,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876765661] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:33:57,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:33:57,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 35 [2025-03-19 23:33:57,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552830318] [2025-03-19 23:33:57,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:33:57,466 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-03-19 23:33:57,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:33:57,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-03-19 23:33:57,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1009, Unknown=0, NotChecked=0, Total=1190 [2025-03-19 23:33:57,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:57,467 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:33:57,467 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 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 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:57,467 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:33:59,649 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:33:59,650 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-03-19 23:33:59,656 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 23:33:59,850 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,SelfDestructingSolverStorable21 [2025-03-19 23:33:59,850 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:33:59,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:33:59,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1620910248, now seen corresponding path program 6 times [2025-03-19 23:33:59,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:33:59,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400201543] [2025-03-19 23:33:59,851 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 23:33:59,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:33:59,866 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 5 equivalence classes. [2025-03-19 23:33:59,891 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 64 of 64 statements. [2025-03-19 23:33:59,891 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-19 23:33:59,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:34:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:34:00,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:34:00,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400201543] [2025-03-19 23:34:00,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400201543] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:34:00,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755507534] [2025-03-19 23:34:00,710 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-19 23:34:00,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:34:00,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:34:00,711 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 23:34:00,713 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 23:34:00,860 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 64 statements into 5 equivalence classes. [2025-03-19 23:34:00,907 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 64 of 64 statements. [2025-03-19 23:34:00,907 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-19 23:34:00,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:34:00,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-19 23:34:00,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:34:00,992 INFO L325 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2025-03-19 23:34:00,992 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 23 [2025-03-19 23:34:01,047 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 62 treesize of output 46 [2025-03-19 23:34:01,049 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 64 [2025-03-19 23:34:01,068 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 23 [2025-03-19 23:34:01,191 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 111 treesize of output 83 [2025-03-19 23:34:01,192 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 99 [2025-03-19 23:34:01,207 INFO L189 IndexEqualityManager]: detected not equals via solver [2025-03-19 23:34:01,208 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 18 [2025-03-19 23:34:01,508 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 209 treesize of output 157 [2025-03-19 23:34:01,511 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 159 [2025-03-19 23:34:01,620 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 143 [2025-03-19 23:34:05,122 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 23:34:05,122 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 399 treesize of output 207 [2025-03-19 23:34:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:34:05,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:34:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:34:06,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755507534] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:34:06,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:34:06,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2025-03-19 23:34:06,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405362393] [2025-03-19 23:34:06,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:34:06,388 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-19 23:34:06,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:34:06,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-19 23:34:06,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=906, Unknown=0, NotChecked=0, Total=1122 [2025-03-19 23:34:06,389 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:34:06,389 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:34:06,389 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.382352941176471) internal successors, (183), 33 states have internal predecessors, (183), 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 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-03-19 23:34:06,389 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:09,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-03-19 23:34:09,804 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-03-19 23:34:09,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-19 23:34:10,004 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-19 23:34:10,004 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-19 23:34:10,005 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-03-19 23:34:10,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1989185219, now seen corresponding path program 1 times [2025-03-19 23:34:10,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-19 23:34:10,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085992677] [2025-03-19 23:34:10,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:34:10,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-19 23:34:10,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-19 23:34:10,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-19 23:34:10,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:34:10,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:34:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 19 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:34:11,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-19 23:34:11,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085992677] [2025-03-19 23:34:11,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085992677] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-19 23:34:11,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016662042] [2025-03-19 23:34:11,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-19 23:34:11,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-19 23:34:11,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-03-19 23:34:11,064 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 23:34:11,066 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 23:34:11,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-19 23:34:11,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-19 23:34:11,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-19 23:34:11,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-19 23:34:11,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-19 23:34:11,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-19 23:34:11,305 INFO L325 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2025-03-19 23:34:11,306 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2025-03-19 23:34:11,383 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 91 treesize of output 73 [2025-03-19 23:34:11,407 INFO L325 Elim1Store]: treesize reduction 105, result has 16.0 percent of original size [2025-03-19 23:34:11,407 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 96 [2025-03-19 23:34:11,432 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 52 treesize of output 18 [2025-03-19 23:34:11,663 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 187 treesize of output 155 [2025-03-19 23:34:11,678 INFO L325 Elim1Store]: treesize reduction 52, result has 14.8 percent of original size [2025-03-19 23:34:11,679 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 155 treesize of output 164 [2025-03-19 23:34:11,791 INFO L325 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2025-03-19 23:34:11,791 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 157 treesize of output 114 [2025-03-19 23:34:12,598 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 462 treesize of output 386 [2025-03-19 23:34:12,707 INFO L325 Elim1Store]: treesize reduction 387, result has 14.6 percent of original size [2025-03-19 23:34:12,708 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 386 treesize of output 291 [2025-03-19 23:34:14,044 INFO L325 Elim1Store]: treesize reduction 107, result has 37.1 percent of original size [2025-03-19 23:34:14,044 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 681 treesize of output 561 [2025-03-19 23:34:18,559 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 1595 treesize of output 1327 [2025-03-19 23:34:18,636 INFO L325 Elim1Store]: treesize reduction 300, result has 13.5 percent of original size [2025-03-19 23:34:18,636 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 1327 treesize of output 787 [2025-03-19 23:34:24,570 INFO L325 Elim1Store]: treesize reduction 121, result has 37.3 percent of original size [2025-03-19 23:34:24,571 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 1779 treesize of output 1259 [2025-03-19 23:34:48,983 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-19 23:34:48,983 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 911 treesize of output 407 [2025-03-19 23:34:49,042 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:34:49,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-19 23:34:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 3 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-19 23:34:50,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016662042] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-19 23:34:50,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-19 23:34:50,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2025-03-19 23:34:50,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989852075] [2025-03-19 23:34:50,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-19 23:34:50,875 INFO L557 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-19 23:34:50,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-19 23:34:50,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-19 23:34:50,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1036, Unknown=0, NotChecked=0, Total=1260 [2025-03-19 23:34:50,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:34:50,876 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-03-19 23:34:50,876 INFO L481 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.861111111111111) internal successors, (211), 35 states have internal predecessors, (211), 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 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2025-03-19 23:34:50,876 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-03-19 23:34:56,784 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:56,784 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-19 23:34:56,784 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-19 23:34:56,784 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-19 23:34:56,784 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-03-19 23:34:56,785 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-03-19 23:34:56,785 INFO L791 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-19 23:34:56,792 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 23:34:56,985 WARN L461 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-19 23:34:56,986 INFO L422 BasicCegarLoop]: Path program histogram: [6, 2, 2, 1, 1, 1] [2025-03-19 23:34:56,986 INFO L320 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork0 was SAFE (3/3) [2025-03-19 23:34:56,987 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-19 23:34:56,987 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-03-19 23:34:56,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-03-19 23:34:56,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 11:34:56 BasicIcfg [2025-03-19 23:34:56,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-19 23:34:56,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-19 23:34:56,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-19 23:34:56,999 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-19 23:34:57,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 11:33:26" (3/4) ... [2025-03-19 23:34:57,001 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-19 23:34:57,003 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2025-03-19 23:34:57,003 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2025-03-19 23:34:57,006 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2025-03-19 23:34:57,007 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-19 23:34:57,007 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-19 23:34:57,007 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-19 23:34:57,060 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-03-19 23:34:57,060 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-03-19 23:34:57,060 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-19 23:34:57,061 INFO L158 Benchmark]: Toolchain (without parser) took 91544.40ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 113.6MB in the beginning and 888.0MB in the end (delta: -774.4MB). Peak memory consumption was 524.3MB. Max. memory is 16.1GB. [2025-03-19 23:34:57,061 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 23:34:57,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.20ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 81.2MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-19 23:34:57,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.96ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 79.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 23:34:57,062 INFO L158 Benchmark]: Boogie Preprocessor took 25.42ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 23:34:57,063 INFO L158 Benchmark]: RCFGBuilder took 465.58ms. Allocated memory is still 142.6MB. Free memory was 77.5MB in the beginning and 105.0MB in the end (delta: -27.5MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2025-03-19 23:34:57,063 INFO L158 Benchmark]: TraceAbstraction took 90481.43ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 103.9MB in the beginning and 892.9MB in the end (delta: -789.0MB). Peak memory consumption was 517.6MB. Max. memory is 16.1GB. [2025-03-19 23:34:57,065 INFO L158 Benchmark]: Witness Printer took 61.23ms. Allocated memory is still 1.4GB. Free memory was 892.9MB in the beginning and 888.0MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-19 23:34:57,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.20ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 81.2MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.96ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 79.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.42ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 465.58ms. Allocated memory is still 142.6MB. Free memory was 77.5MB in the beginning and 105.0MB in the end (delta: -27.5MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * TraceAbstraction took 90481.43ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 103.9MB in the beginning and 892.9MB in the end (delta: -789.0MB). Peak memory consumption was 517.6MB. Max. memory is 16.1GB. * Witness Printer took 61.23ms. Allocated memory is still 1.4GB. Free memory was 892.9MB in the beginning and 888.0MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 643, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 643, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 471, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 471, independent: 457, independent conditional: 0, independent unconditional: 457, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 399, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 643, independent: 172, independent conditional: 0, independent unconditional: 172, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 471, unknown conditional: 0, unknown unconditional: 471] , Statistics on independence cache: Total cache size (in pairs): 471, Positive cache size: 463, Positive conditional cache size: 0, Positive unconditional cache size: 463, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.4s, Number of persistent set computation: 66, Number of trivial persistent sets: 8, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 643, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 643, independent: 635, independent conditional: 0, independent unconditional: 635, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 471, independent: 463, independent conditional: 0, independent unconditional: 463, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 471, independent: 457, independent conditional: 0, independent unconditional: 457, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 399, independent: 114, independent conditional: 0, independent unconditional: 114, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 643, independent: 172, independent conditional: 0, independent unconditional: 172, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 471, unknown conditional: 0, unknown unconditional: 471] , Statistics on independence cache: Total cache size (in pairs): 471, Positive cache size: 463, Positive conditional cache size: 0, Positive unconditional cache size: 463, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 94, independent: 92, independent conditional: 0, independent unconditional: 92, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 94, independent: 92, independent conditional: 0, independent unconditional: 92, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 94, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 474, Positive cache size: 466, Positive conditional cache size: 0, Positive unconditional cache size: 466, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 4, Number of trivial persistent sets: 2, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 94, independent: 92, independent conditional: 0, independent unconditional: 92, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 94, independent: 92, independent conditional: 0, independent unconditional: 92, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 94, independent: 89, independent conditional: 0, independent unconditional: 89, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 474, Positive cache size: 466, Positive conditional cache size: 0, Positive unconditional cache size: 466, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 563, independent: 555, independent conditional: 0, independent unconditional: 555, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 563, independent: 555, independent conditional: 0, independent unconditional: 555, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 563, independent: 531, independent conditional: 0, independent unconditional: 531, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 498, Positive cache size: 490, Positive conditional cache size: 0, Positive unconditional cache size: 490, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 55, Number of trivial persistent sets: 2, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 563, independent: 555, independent conditional: 0, independent unconditional: 555, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 563, independent: 555, independent conditional: 0, independent unconditional: 555, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 563, independent: 531, independent conditional: 0, independent unconditional: 531, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 498, Positive cache size: 490, Positive conditional cache size: 0, Positive unconditional cache size: 490, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Independence queries for same thread: 0 - PositiveResult [Line: 941]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 941]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 53 locations, 62 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 3.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 974 NumberOfCodeBlocks, 974 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1248 ConstructedInterpolants, 18 QuantifiedInterpolants, 4411 SizeOfPredicates, 51 NumberOfNonLiveVariables, 2398 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 25 InterpolantComputations, 5 PerfectInterpolantSequences, 630/1115 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 53 locations, 62 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 53 locations, 62 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 80.1s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 16.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 282, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 60.2s InterpolantComputationTime, 1659 NumberOfCodeBlocks, 1393 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 2205 ConstructedInterpolants, 42 QuantifiedInterpolants, 121208 SizeOfPredicates, 128 NumberOfNonLiveVariables, 3116 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 3072/3793 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-19 23:34:57,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE