./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack-2.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/stack-2.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 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 20:31:56,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 20:31:56,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 20:31:56,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 20:31:57,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 20:31:57,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 20:31:57,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 20:31:57,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 20:31:57,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 20:31:57,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 20:31:57,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 20:31:57,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 20:31:57,023 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 20:31:57,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 20:31:57,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 20:31:57,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 20:31:57,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 20:31:57,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 20:31:57,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 20:31:57,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 20:31:57,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 20:31:57,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 20:31:57,028 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 20:31:57,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 20:31:57,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 20:31:57,029 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 20:31:57,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 20:31:57,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 20:31:57,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 20:31:57,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 20:31:57,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 20:31:57,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 20:31:57,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 20:31:57,030 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 20:31:57,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 20:31:57,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 20:31:57,031 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 20:31:57,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 20:31:57,031 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 20:31:57,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 20:31:57,031 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 20:31:57,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release 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 -> 1c5d098180a5596f0a60d3177354c69a5ee6da68b8191dc75b6c33b291ef0421 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 20:31:57,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 20:31:57,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 20:31:57,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 20:31:57,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 20:31:57,251 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 20:31:57,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack-2.i [2024-10-17 20:31:58,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 20:31:58,630 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 20:31:58,630 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i [2024-10-17 20:31:58,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/054db29f6/1f0c16ab125644c49741823db3749136/FLAG13ad6c6c2 [2024-10-17 20:31:58,666 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/054db29f6/1f0c16ab125644c49741823db3749136 [2024-10-17 20:31:58,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 20:31:58,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 20:31:58,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 20:31:58,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 20:31:58,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 20:31:58,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 08:31:58" (1/1) ... [2024-10-17 20:31:58,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d63f724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:58, skipping insertion in model container [2024-10-17 20:31:58,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 08:31:58" (1/1) ... [2024-10-17 20:31:58,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 20:31:59,011 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i[41520,41533] [2024-10-17 20:31:59,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 20:31:59,043 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 20:31:59,071 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-2.i[41520,41533] [2024-10-17 20:31:59,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 20:31:59,163 INFO L204 MainTranslator]: Completed translation [2024-10-17 20:31:59,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59 WrapperNode [2024-10-17 20:31:59,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 20:31:59,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 20:31:59,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 20:31:59,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 20:31:59,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,205 INFO L138 Inliner]: procedures = 277, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 157 [2024-10-17 20:31:59,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 20:31:59,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 20:31:59,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 20:31:59,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 20:31:59,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 20:31:59,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 20:31:59,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 20:31:59,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 20:31:59,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (1/1) ... [2024-10-17 20:31:59,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 20:31:59,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:31:59,265 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) [2024-10-17 20:31:59,267 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 [2024-10-17 20:31:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-17 20:31:59,297 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-17 20:31:59,297 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 20:31:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 20:31:59,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 20:31:59,299 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 20:31:59,393 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 20:31:59,394 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 20:31:59,556 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 20:31:59,556 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 20:31:59,690 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 20:31:59,691 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-17 20:31:59,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:31:59 BoogieIcfgContainer [2024-10-17 20:31:59,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 20:31:59,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 20:31:59,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 20:31:59,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 20:31:59,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 08:31:58" (1/3) ... [2024-10-17 20:31:59,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cecce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 08:31:59, skipping insertion in model container [2024-10-17 20:31:59,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:31:59" (2/3) ... [2024-10-17 20:31:59,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73cecce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 08:31:59, skipping insertion in model container [2024-10-17 20:31:59,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:31:59" (3/3) ... [2024-10-17 20:31:59,700 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-2.i [2024-10-17 20:31:59,711 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 20:31:59,712 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-17 20:31:59,713 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 20:31:59,753 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-17 20:31:59,789 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 20:31:59,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 20:31:59,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:31:59,792 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) [2024-10-17 20:31:59,793 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 [2024-10-17 20:31:59,863 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 20:31:59,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:31:59,876 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2024-10-17 20:31:59,880 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1da6216d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 20:31:59,880 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 20:32:00,835 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:00,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:00,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1686211714, now seen corresponding path program 1 times [2024-10-17 20:32:00,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:00,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614977801] [2024-10-17 20:32:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:01,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:01,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614977801] [2024-10-17 20:32:01,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614977801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:01,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:01,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 20:32:01,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116677434] [2024-10-17 20:32:01,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:01,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 20:32:01,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:01,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 20:32:01,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 20:32:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:01,211 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:01,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:01,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:01,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:01,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 20:32:01,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:01,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:01,874 INFO L85 PathProgramCache]: Analyzing trace with hash -372146329, now seen corresponding path program 1 times [2024-10-17 20:32:01,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:01,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386774825] [2024-10-17 20:32:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:01,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:01,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386774825] [2024-10-17 20:32:01,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386774825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:01,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:01,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 20:32:01,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758833162] [2024-10-17 20:32:01,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:01,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 20:32:01,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:01,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 20:32:01,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 20:32:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:01,979 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:01,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:01,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:01,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:02,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-17 20:32:02,019 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:02,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:02,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2008170458, now seen corresponding path program 1 times [2024-10-17 20:32:02,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:02,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026760768] [2024-10-17 20:32:02,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:02,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:02,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:02,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:02,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026760768] [2024-10-17 20:32:02,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026760768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:02,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:02,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 20:32:02,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294841162] [2024-10-17 20:32:02,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:02,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 20:32:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 20:32:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 20:32:02,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:02,114 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:02,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:02,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:02,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:02,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-17 20:32:02,159 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:02,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:02,159 INFO L85 PathProgramCache]: Analyzing trace with hash 963355572, now seen corresponding path program 1 times [2024-10-17 20:32:02,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:02,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833971821] [2024-10-17 20:32:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:02,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:02,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:02,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833971821] [2024-10-17 20:32:02,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833971821] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:02,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430791869] [2024-10-17 20:32:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:02,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:02,301 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) [2024-10-17 20:32:02,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 20:32:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:02,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-17 20:32:02,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:02,419 INFO L378 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 [2024-10-17 20:32:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:02,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 20:32:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:02,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430791869] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 20:32:02,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 20:32:02,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-17 20:32:02,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628598668] [2024-10-17 20:32:02,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 20:32:02,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-17 20:32:02,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:02,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-17 20:32:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-17 20:32:02,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:02,594 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:02,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:02,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:02,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:02,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:02,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 20:32:02,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:02,991 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:03,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1461913681, now seen corresponding path program 2 times [2024-10-17 20:32:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:03,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601130496] [2024-10-17 20:32:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:03,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:03,686 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 1 proven. 72 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-17 20:32:03,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:03,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601130496] [2024-10-17 20:32:03,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601130496] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:03,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061691885] [2024-10-17 20:32:03,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 20:32:03,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:03,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:03,690 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) [2024-10-17 20:32:03,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-17 20:32:03,806 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 20:32:03,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:32:03,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-17 20:32:03,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:03,829 INFO L378 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 [2024-10-17 20:32:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 43 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-17 20:32:03,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 20:32:04,192 INFO L378 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 [2024-10-17 20:32:04,196 INFO L378 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 14 treesize of output 5 [2024-10-17 20:32:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 24 proven. 52 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-17 20:32:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061691885] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 20:32:04,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 20:32:04,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 9] total 17 [2024-10-17 20:32:04,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755301704] [2024-10-17 20:32:04,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 20:32:04,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-17 20:32:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:04,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-17 20:32:04,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-17 20:32:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:04,283 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:04,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.222222222222222) internal successors, (112), 17 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:04,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:04,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:04,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:04,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:04,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-17 20:32:04,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-17 20:32:04,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:04,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:04,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:04,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1287110140, now seen corresponding path program 1 times [2024-10-17 20:32:04,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:04,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643768938] [2024-10-17 20:32:04,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:04,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 93 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:04,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:04,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643768938] [2024-10-17 20:32:04,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643768938] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:04,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013993274] [2024-10-17 20:32:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:04,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:04,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:04,822 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) [2024-10-17 20:32:04,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-17 20:32:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:04,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-17 20:32:04,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 20:32:04,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 20:32:04,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013993274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:04,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 20:32:04,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 10 [2024-10-17 20:32:04,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599107437] [2024-10-17 20:32:04,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:04,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-17 20:32:04,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:04,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-17 20:32:04,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-10-17 20:32:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:04,984 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:04,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:04,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:04,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:04,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:04,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:04,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-17 20:32:04,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-17 20:32:05,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:05,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-17 20:32:05,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:05,462 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:05,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash 86917549, now seen corresponding path program 3 times [2024-10-17 20:32:05,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:05,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052230215] [2024-10-17 20:32:05,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:05,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:05,927 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 9 proven. 66 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-17 20:32:05,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:05,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052230215] [2024-10-17 20:32:05,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052230215] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:05,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110248834] [2024-10-17 20:32:05,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 20:32:05,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:05,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:05,931 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) [2024-10-17 20:32:05,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-17 20:32:06,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-17 20:32:06,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:32:06,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 20:32:06,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:06,058 INFO L378 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 [2024-10-17 20:32:06,173 INFO L378 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 [2024-10-17 20:32:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 53 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-17 20:32:06,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 20:32:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 50 proven. 14 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-17 20:32:06,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110248834] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 20:32:06,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 20:32:06,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 21 [2024-10-17 20:32:06,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962472048] [2024-10-17 20:32:06,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 20:32:06,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-17 20:32:06,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:06,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-17 20:32:06,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2024-10-17 20:32:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:06,903 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:06,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:06,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:06,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:06,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:06,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:06,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-10-17 20:32:06,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:06,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-17 20:32:07,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-17 20:32:07,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-17 20:32:07,843 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:07,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1302784552, now seen corresponding path program 4 times [2024-10-17 20:32:07,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:07,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764303037] [2024-10-17 20:32:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:07,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:08,262 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-17 20:32:08,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:08,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764303037] [2024-10-17 20:32:08,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764303037] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:08,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573138200] [2024-10-17 20:32:08,263 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-17 20:32:08,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:08,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:08,265 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) [2024-10-17 20:32:08,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-17 20:32:08,403 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-17 20:32:08,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:32:08,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 20:32:08,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:08,424 INFO L378 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 [2024-10-17 20:32:08,459 INFO L378 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 [2024-10-17 20:32:08,482 INFO L378 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 [2024-10-17 20:32:08,510 INFO L378 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 [2024-10-17 20:32:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:08,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 20:32:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 33 proven. 39 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-17 20:32:08,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573138200] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 20:32:08,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 20:32:08,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 7] total 20 [2024-10-17 20:32:08,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027162575] [2024-10-17 20:32:08,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 20:32:08,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-17 20:32:08,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:08,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-17 20:32:08,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2024-10-17 20:32:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:08,728 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:08,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.05) internal successors, (161), 20 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2024-10-17 20:32:08,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-17 20:32:09,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-17 20:32:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-17 20:32:09,333 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 20:32:09,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-17 20:32:09,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:09,539 INFO L414 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-10-17 20:32:09,539 INFO L312 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork1 was SAFE (1/3) [2024-10-17 20:32:09,541 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 20:32:09,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 20:32:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:09,543 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 20:32:09,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2024-10-17 20:32:09,598 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 20:32:09,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:09,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-17 20:32:09,599 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1da6216d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 20:32:09,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-17 20:32:09,689 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-17 20:32:09,689 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-10-17 20:32:09,691 INFO L414 BasicCegarLoop]: Path program histogram: [] [2024-10-17 20:32:09,691 INFO L312 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2024-10-17 20:32:09,696 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 20:32:09,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 20:32:09,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:09,698 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-17 20:32:09,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2024-10-17 20:32:09,731 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 20:32:09,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:09,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2Thread1of1ForFork0 ======== [2024-10-17 20:32:09,732 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1da6216d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 20:32:09,732 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 20:32:10,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:10,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash -668636023, now seen corresponding path program 1 times [2024-10-17 20:32:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:10,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490999234] [2024-10-17 20:32:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:10,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:10,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490999234] [2024-10-17 20:32:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490999234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:10,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:10,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 20:32:10,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716377388] [2024-10-17 20:32:10,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:10,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-17 20:32:10,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:10,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-17 20:32:10,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-17 20:32:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:10,290 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:10,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:10,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:10,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:10,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-17 20:32:10,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:10,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash -601170002, now seen corresponding path program 1 times [2024-10-17 20:32:10,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:10,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186134370] [2024-10-17 20:32:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:10,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186134370] [2024-10-17 20:32:10,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186134370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:10,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:10,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 20:32:10,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032262674] [2024-10-17 20:32:10,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:10,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 20:32:10,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:10,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 20:32:10,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 20:32:10,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:10,844 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:10,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:10,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:10,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:11,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-17 20:32:11,006 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:11,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash 868868307, now seen corresponding path program 2 times [2024-10-17 20:32:11,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:11,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600381782] [2024-10-17 20:32:11,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:11,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:11,108 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-17 20:32:11,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:11,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600381782] [2024-10-17 20:32:11,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600381782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:11,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:11,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 20:32:11,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596995777] [2024-10-17 20:32:11,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:11,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 20:32:11,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:11,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 20:32:11,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 20:32:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:11,110 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:11,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:11,110 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:11,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-17 20:32:11,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:11,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:11,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1999670384, now seen corresponding path program 1 times [2024-10-17 20:32:11,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:11,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760423243] [2024-10-17 20:32:11,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:11,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-17 20:32:11,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:11,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760423243] [2024-10-17 20:32:11,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760423243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:11,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:11,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-17 20:32:11,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2160251] [2024-10-17 20:32:11,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:11,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-17 20:32:11,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:11,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-17 20:32:11,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-17 20:32:11,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:11,212 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:11,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:11,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:11,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-17 20:32:11,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:11,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:11,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1892141387, now seen corresponding path program 1 times [2024-10-17 20:32:11,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:11,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063643522] [2024-10-17 20:32:11,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:11,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:11,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:11,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:11,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063643522] [2024-10-17 20:32:11,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063643522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:11,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:32:11,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 20:32:11,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970020290] [2024-10-17 20:32:11,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:11,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 20:32:11,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:11,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 20:32:11,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-17 20:32:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:11,509 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:11,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:11,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:11,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:11,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-17 20:32:11,564 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:11,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:11,564 INFO L85 PathProgramCache]: Analyzing trace with hash -687305091, now seen corresponding path program 1 times [2024-10-17 20:32:11,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:11,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197502592] [2024-10-17 20:32:11,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:11,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:12,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:12,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:12,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197502592] [2024-10-17 20:32:12,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197502592] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:12,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133727958] [2024-10-17 20:32:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:12,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:12,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:12,148 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) [2024-10-17 20:32:12,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-17 20:32:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:12,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 20:32:12,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:12,288 INFO L378 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 [2024-10-17 20:32:12,338 INFO L378 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 [2024-10-17 20:32:12,384 INFO L378 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 [2024-10-17 20:32:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:12,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 20:32:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:12,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133727958] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 20:32:12,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 20:32:12,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2024-10-17 20:32:12,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989858282] [2024-10-17 20:32:12,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 20:32:12,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-17 20:32:12,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:12,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-17 20:32:12,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-10-17 20:32:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:12,748 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:12,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:12,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:12,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:12,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:12,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:12,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:12,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:13,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-17 20:32:13,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-17 20:32:13,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-17 20:32:13,261 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:13,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:13,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1268341423, now seen corresponding path program 2 times [2024-10-17 20:32:13,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:13,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437724083] [2024-10-17 20:32:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:13,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-17 20:32:13,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:13,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437724083] [2024-10-17 20:32:13,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437724083] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:13,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625612372] [2024-10-17 20:32:13,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 20:32:13,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:13,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:13,876 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) [2024-10-17 20:32:13,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-17 20:32:14,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 20:32:14,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:32:14,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-17 20:32:14,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:14,060 INFO L378 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 [2024-10-17 20:32:14,194 INFO L378 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 26 treesize of output 6 [2024-10-17 20:32:14,268 INFO L378 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 [2024-10-17 20:32:14,271 INFO L378 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 [2024-10-17 20:32:14,281 INFO L378 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 35 treesize of output 19 [2024-10-17 20:32:14,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-17 20:32:14,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 57 [2024-10-17 20:32:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:14,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 20:32:15,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 5 [2024-10-17 20:32:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:15,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625612372] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 20:32:15,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 20:32:15,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 11] total 25 [2024-10-17 20:32:15,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390405296] [2024-10-17 20:32:15,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 20:32:15,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-17 20:32:15,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:15,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-17 20:32:15,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2024-10-17 20:32:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:15,277 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:15,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 25 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:15,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:15,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:15,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:15,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:15,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:15,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-17 20:32:15,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:15,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-17 20:32:15,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:15,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-17 20:32:15,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-17 20:32:15,978 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:15,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash -246660448, now seen corresponding path program 3 times [2024-10-17 20:32:15,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:15,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137200178] [2024-10-17 20:32:15,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:15,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 205 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:16,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137200178] [2024-10-17 20:32:16,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137200178] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523387752] [2024-10-17 20:32:16,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 20:32:16,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:16,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:16,409 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) [2024-10-17 20:32:16,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-17 20:32:16,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-17 20:32:16,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:32:16,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 20:32:16,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:16,690 INFO L378 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 17 treesize of output 13 [2024-10-17 20:32:16,860 INFO L378 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 80 treesize of output 32 [2024-10-17 20:32:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 93 proven. 1 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-10-17 20:32:16,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-17 20:32:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 93 proven. 1 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-10-17 20:32:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523387752] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-17 20:32:17,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-17 20:32:17,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 6] total 26 [2024-10-17 20:32:17,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055182517] [2024-10-17 20:32:17,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-17 20:32:17,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-17 20:32:17,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:17,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-17 20:32:17,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2024-10-17 20:32:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:17,066 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:17,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.230769230769231) internal successors, (162), 26 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:17,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:17,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:17,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:17,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:17,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:17,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-17 20:32:17,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:17,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-17 20:32:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-17 20:32:18,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-17 20:32:18,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:18,776 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:18,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:18,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1674377709, now seen corresponding path program 1 times [2024-10-17 20:32:18,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:18,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664171284] [2024-10-17 20:32:18,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:18,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:19,189 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 174 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:19,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:19,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664171284] [2024-10-17 20:32:19,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664171284] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:19,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958281694] [2024-10-17 20:32:19,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:19,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:19,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:19,191 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) [2024-10-17 20:32:19,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-17 20:32:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:19,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-17 20:32:19,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-17 20:32:19,505 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 20:32:19,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958281694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:19,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 20:32:19,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 24 [2024-10-17 20:32:19,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630854206] [2024-10-17 20:32:19,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:19,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-17 20:32:19,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:19,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-17 20:32:19,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2024-10-17 20:32:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:19,506 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:19,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2024-10-17 20:32:19,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:19,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:19,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:19,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:19,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-17 20:32:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-17 20:32:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:19,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-17 20:32:19,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-17 20:32:19,823 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:19,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:19,824 INFO L85 PathProgramCache]: Analyzing trace with hash -256109449, now seen corresponding path program 2 times [2024-10-17 20:32:19,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:19,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221192639] [2024-10-17 20:32:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:19,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:32:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 112 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:19,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:32:19,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221192639] [2024-10-17 20:32:19,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221192639] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:32:19,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280225158] [2024-10-17 20:32:19,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 20:32:19,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:32:19,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:32:19,960 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) [2024-10-17 20:32:19,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-17 20:32:20,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 20:32:20,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:32:20,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-17 20:32:20,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:32:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:32:20,187 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 20:32:20,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280225158] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:32:20,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 20:32:20,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2024-10-17 20:32:20,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584575768] [2024-10-17 20:32:20,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:32:20,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-17 20:32:20,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:32:20,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-17 20:32:20,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-17 20:32:20,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:20,188 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:32:20,188 INFO L472 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) [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:20,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:20,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-17 20:32:20,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-17 20:32:20,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-17 20:32:20,548 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:32:20,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:32:20,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2055972850, now seen corresponding path program 4 times [2024-10-17 20:32:20,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:32:20,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389266225] [2024-10-17 20:32:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:32:20,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:32:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 20:32:20,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 20:32:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 20:32:20,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-17 20:32:20,770 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-17 20:32:20,770 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 20:32:20,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-17 20:32:20,772 INFO L414 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1] [2024-10-17 20:32:20,772 INFO L312 ceAbstractionStarter]: Result for error location t2Thread1of1ForFork0 was UNSAFE (3/3) [2024-10-17 20:32:20,833 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-17 20:32:20,833 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-17 20:32:20,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 08:32:20 BasicIcfg [2024-10-17 20:32:20,836 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-17 20:32:20,836 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-17 20:32:20,836 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-17 20:32:20,836 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-17 20:32:20,837 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:31:59" (3/4) ... [2024-10-17 20:32:20,838 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-17 20:32:20,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-17 20:32:20,913 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-17 20:32:20,913 INFO L158 Benchmark]: Toolchain (without parser) took 22243.60ms. Allocated memory was 165.7MB in the beginning and 645.9MB in the end (delta: 480.2MB). Free memory was 95.6MB in the beginning and 486.3MB in the end (delta: -390.7MB). Peak memory consumption was 90.9MB. Max. memory is 16.1GB. [2024-10-17 20:32:20,914 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 20:32:20,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.10ms. Allocated memory is still 165.7MB. Free memory was 95.6MB in the beginning and 130.2MB in the end (delta: -34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-17 20:32:20,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.70ms. Allocated memory is still 165.7MB. Free memory was 130.2MB in the beginning and 127.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 20:32:20,914 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 125.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 20:32:20,914 INFO L158 Benchmark]: RCFGBuilder took 459.41ms. Allocated memory is still 165.7MB. Free memory was 125.2MB in the beginning and 81.9MB in the end (delta: 43.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-17 20:32:20,914 INFO L158 Benchmark]: TraceAbstraction took 21142.24ms. Allocated memory was 165.7MB in the beginning and 645.9MB in the end (delta: 480.2MB). Free memory was 80.3MB in the beginning and 506.2MB in the end (delta: -425.9MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2024-10-17 20:32:20,916 INFO L158 Benchmark]: Witness Printer took 76.90ms. Allocated memory is still 645.9MB. Free memory was 506.2MB in the beginning and 486.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-17 20:32:20,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.10ms. Allocated memory is still 165.7MB. Free memory was 95.6MB in the beginning and 130.2MB in the end (delta: -34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.70ms. Allocated memory is still 165.7MB. Free memory was 130.2MB in the beginning and 127.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 125.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.41ms. Allocated memory is still 165.7MB. Free memory was 125.2MB in the beginning and 81.9MB in the end (delta: 43.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 21142.24ms. Allocated memory was 165.7MB in the beginning and 645.9MB in the end (delta: 480.2MB). Free memory was 80.3MB in the beginning and 506.2MB in the end (delta: -425.9MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. * Witness Printer took 76.90ms. Allocated memory is still 645.9MB. Free memory was 506.2MB in the beginning and 486.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. 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: 11070, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 1968, dependent conditional: 1959, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9224, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 122, dependent conditional: 113, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9224, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 122, dependent conditional: 113, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9224, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 122, dependent conditional: 113, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 901, dependent conditional: 883, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 519, independent: 504, independent conditional: 0, independent unconditional: 504, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 519, independent: 501, independent conditional: 0, independent unconditional: 501, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1599, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 1543, dependent conditional: 94, dependent unconditional: 1449, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10003, independent: 8598, independent conditional: 0, independent unconditional: 8598, dependent: 886, dependent conditional: 111, dependent unconditional: 775, unknown: 519, unknown conditional: 6, unknown unconditional: 513] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 504, Positive conditional cache size: 0, Positive unconditional cache size: 504, Negative cache size: 15, Negative conditional cache size: 6, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9130, Maximal queried relation: 7, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 901, dependent conditional: 883, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 519, independent: 504, independent conditional: 0, independent unconditional: 504, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 519, independent: 501, independent conditional: 0, independent unconditional: 501, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1599, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 1543, dependent conditional: 94, dependent unconditional: 1449, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10003, independent: 8598, independent conditional: 0, independent unconditional: 8598, dependent: 886, dependent conditional: 111, dependent unconditional: 775, unknown: 519, unknown conditional: 6, unknown unconditional: 513] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 504, Positive conditional cache size: 0, Positive unconditional cache size: 504, Negative cache size: 15, Negative conditional cache size: 6, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9130 ], Independence queries for same thread: 1846, Persistent sets #1 benchmarks: Persistent set computation time: 1.6s, Number of persistent set computation: 184, Number of trivial persistent sets: 171, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 747, independent: 738, independent conditional: 0, independent unconditional: 738, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 11070, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 1968, dependent conditional: 1959, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9224, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 122, dependent conditional: 113, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9224, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 122, dependent conditional: 113, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9224, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 122, dependent conditional: 113, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 901, dependent conditional: 883, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 519, independent: 504, independent conditional: 0, independent unconditional: 504, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 519, independent: 501, independent conditional: 0, independent unconditional: 501, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1599, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 1543, dependent conditional: 94, dependent unconditional: 1449, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10003, independent: 8598, independent conditional: 0, independent unconditional: 8598, dependent: 886, dependent conditional: 111, dependent unconditional: 775, unknown: 519, unknown conditional: 6, unknown unconditional: 513] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 504, Positive conditional cache size: 0, Positive unconditional cache size: 504, Negative cache size: 15, Negative conditional cache size: 6, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9130, Maximal queried relation: 7, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 8364, independent unconditional: 738, dependent: 901, dependent conditional: 883, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10003, independent: 9102, independent conditional: 0, independent unconditional: 9102, dependent: 901, dependent conditional: 117, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 519, independent: 504, independent conditional: 0, independent unconditional: 504, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 519, independent: 501, independent conditional: 0, independent unconditional: 501, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 15, dependent conditional: 6, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1599, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 1543, dependent conditional: 94, dependent unconditional: 1449, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10003, independent: 8598, independent conditional: 0, independent unconditional: 8598, dependent: 886, dependent conditional: 111, dependent unconditional: 775, unknown: 519, unknown conditional: 6, unknown unconditional: 513] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 504, Positive conditional cache size: 0, Positive unconditional cache size: 504, Negative cache size: 15, Negative conditional cache size: 6, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9130 ], Independence queries for same thread: 1846 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 143, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 143, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 143, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 139, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 139, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 145, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 139, unknown conditional: 0, unknown unconditional: 139] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 139, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 139, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 145, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 139, unknown conditional: 0, unknown unconditional: 139] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4 ], Independence queries for same thread: 2, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 6, Number of trivial persistent sets: 4, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 139, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 143, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 143, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 143, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 139, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 139, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 145, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 139, unknown conditional: 0, unknown unconditional: 139] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 4, independent unconditional: 137, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 145, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 139, independent: 137, independent conditional: 0, independent unconditional: 137, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 139, independent: 136, independent conditional: 0, independent unconditional: 136, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 145, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 139, unknown conditional: 0, unknown unconditional: 139] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4 ], Independence queries for same thread: 2 - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2237, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 444, dependent conditional: 434, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1814, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 21, dependent conditional: 11, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1814, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 21, dependent conditional: 11, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1814, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 21, dependent conditional: 11, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 60, dependent conditional: 40, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 467, independent conditional: 0, independent unconditional: 467, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 462, independent conditional: 0, independent unconditional: 462, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1155, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 1116, dependent conditional: 74, dependent unconditional: 1043, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1853, independent: 1326, independent conditional: 0, independent unconditional: 1326, dependent: 44, dependent conditional: 7, dependent unconditional: 37, unknown: 483, unknown conditional: 6, unknown unconditional: 477] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 467, Positive conditional cache size: 0, Positive unconditional cache size: 467, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1212, Maximal queried relation: 4, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 60, dependent conditional: 40, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 467, independent conditional: 0, independent unconditional: 467, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 462, independent conditional: 0, independent unconditional: 462, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1155, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 1116, dependent conditional: 74, dependent unconditional: 1043, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1853, independent: 1326, independent conditional: 0, independent unconditional: 1326, dependent: 44, dependent conditional: 7, dependent unconditional: 37, unknown: 483, unknown conditional: 6, unknown unconditional: 477] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 467, Positive conditional cache size: 0, Positive unconditional cache size: 467, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1212 ], Independence queries for same thread: 423, Persistent sets #1 benchmarks: Persistent set computation time: 1.1s, Number of persistent set computation: 87, Number of trivial persistent sets: 73, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 618, independent: 608, independent conditional: 0, independent unconditional: 608, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2237, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 444, dependent conditional: 434, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1814, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 21, dependent conditional: 11, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1814, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 21, dependent conditional: 11, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1814, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 21, dependent conditional: 11, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 60, dependent conditional: 40, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 467, independent conditional: 0, independent unconditional: 467, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 462, independent conditional: 0, independent unconditional: 462, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1155, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 1116, dependent conditional: 74, dependent unconditional: 1043, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1853, independent: 1326, independent conditional: 0, independent unconditional: 1326, dependent: 44, dependent conditional: 7, dependent unconditional: 37, unknown: 483, unknown conditional: 6, unknown unconditional: 477] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 467, Positive conditional cache size: 0, Positive unconditional cache size: 467, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1212, Maximal queried relation: 4, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 1185, independent unconditional: 608, dependent: 60, dependent conditional: 40, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1853, independent: 1793, independent conditional: 0, independent unconditional: 1793, dependent: 60, dependent conditional: 13, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 467, independent conditional: 0, independent unconditional: 467, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 462, independent conditional: 0, independent unconditional: 462, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1155, independent: 38, independent conditional: 0, independent unconditional: 38, dependent: 1116, dependent conditional: 74, dependent unconditional: 1043, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 1853, independent: 1326, independent conditional: 0, independent unconditional: 1326, dependent: 44, dependent conditional: 7, dependent unconditional: 37, unknown: 483, unknown conditional: 6, unknown unconditional: 477] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 467, Positive conditional cache size: 0, Positive unconditional cache size: 467, Negative cache size: 16, Negative conditional cache size: 6, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1212 ], Independence queries for same thread: 423 - 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 - CounterExampleResult [Line: 941]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L935] 0 static int top=0; [L936] 0 static unsigned int arr[(5)]; [L937] 0 pthread_mutex_t m; [L938] 0 _Bool flag=(0); [L1021] 0 pthread_t id1, id2; [L1023] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={3:0}, flag=0, id1=-1, m={4:0}, top=0] [L990] 1 int i; [L991] 1 unsigned int tmp; [L992] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=0, i=0, m={4:0}, top=0] [L1024] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={3:0}, flag=0, id1=-1, id2=0, m={4:0}, top=0] [L1006] 2 int i; [L1007] 2 i=0 VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=0, i=0, m={4:0}, top=0] [L992] COND TRUE 1 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=0, i=0, m={4:0}, top=0] [L995] 1 tmp = __VERIFIER_nondet_uint() [L996] CALL 1 assume_abort_if_not(tmp < (5)) [L23] COND FALSE 1 !(!cond) [L996] RET 1 assume_abort_if_not(tmp < (5)) [L997] CALL, EXPR 1 push(arr,tmp) [L962] COND FALSE 1 !(top==(5)) [L969] CALL, EXPR 1 get_top() [L954] 1 return top; [L969] RET, EXPR 1 get_top() [L969] 1 stack[get_top()] = x [L970] CALL 1 inc_top() [L946] 1 top++ [L970] RET 1 inc_top() [L972] 1 return 0; [L997] RET, EXPR 1 push(arr,tmp) [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) [L999] 1 flag=(1) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=0, m={4:0}, tmp=3, top=1] [L992] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=1, m={4:0}, tmp=3, top=1] [L1007] COND TRUE 2 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=0, m={4:0}, top=1] [L1010] COND TRUE 2 \read(flag) [L1012] CALL, EXPR 2 pop(arr) [L976] CALL, EXPR 2 get_top() [L954] 2 return top; [L976] RET, EXPR 2 get_top() [L976] COND FALSE 2 !(get_top()==0) [L983] CALL 2 dec_top() [L950] 2 top-- [L983] RET 2 dec_top() [L984] CALL, EXPR 2 get_top() [L954] 2 return top; [L984] RET, EXPR 2 get_top() [L984] EXPR 2 stack[get_top()] [L984] 2 return stack[get_top()]; [L1012] RET, EXPR 2 pop(arr) [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1007] 2 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=1, m={4:0}, top=0] [L992] COND TRUE 1 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=1, m={4:0}, tmp=3, top=0] [L995] 1 tmp = __VERIFIER_nondet_uint() [L996] CALL 1 assume_abort_if_not(tmp < (5)) [L23] COND FALSE 1 !(!cond) [L996] RET 1 assume_abort_if_not(tmp < (5)) [L997] CALL, EXPR 1 push(arr,tmp) [L962] COND FALSE 1 !(top==(5)) [L969] CALL, EXPR 1 get_top() [L954] 1 return top; [L969] RET, EXPR 1 get_top() [L969] 1 stack[get_top()] = x [L970] CALL 1 inc_top() [L946] 1 top++ [L970] RET 1 inc_top() [L972] 1 return 0; [L997] RET, EXPR 1 push(arr,tmp) [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) [L999] 1 flag=(1) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=1, m={4:0}, tmp=4, top=1] [L992] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=2, m={4:0}, tmp=4, top=1] [L1007] COND TRUE 2 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=1, m={4:0}, top=1] [L1010] COND TRUE 2 \read(flag) [L1012] CALL, EXPR 2 pop(arr) [L976] CALL, EXPR 2 get_top() [L954] 2 return top; [L976] RET, EXPR 2 get_top() [L976] COND FALSE 2 !(get_top()==0) [L983] CALL 2 dec_top() [L950] 2 top-- [L983] RET 2 dec_top() [L984] CALL, EXPR 2 get_top() [L954] 2 return top; [L984] RET, EXPR 2 get_top() [L984] EXPR 2 stack[get_top()] [L984] 2 return stack[get_top()]; [L1012] RET, EXPR 2 pop(arr) [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1007] 2 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=2, m={4:0}, top=0] [L992] COND TRUE 1 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=2, m={4:0}, tmp=4, top=0] [L995] 1 tmp = __VERIFIER_nondet_uint() [L996] CALL 1 assume_abort_if_not(tmp < (5)) [L23] COND FALSE 1 !(!cond) [L996] RET 1 assume_abort_if_not(tmp < (5)) [L997] CALL, EXPR 1 push(arr,tmp) [L962] COND FALSE 1 !(top==(5)) [L969] CALL, EXPR 1 get_top() [L954] 1 return top; [L969] RET, EXPR 1 get_top() [L969] 1 stack[get_top()] = x [L970] CALL 1 inc_top() [L946] 1 top++ [L970] RET 1 inc_top() [L972] 1 return 0; [L997] RET, EXPR 1 push(arr,tmp) [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) [L999] 1 flag=(1) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=2, m={4:0}, tmp=2, top=1] [L992] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=3, m={4:0}, tmp=2, top=1] [L1007] COND TRUE 2 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=2, m={4:0}, top=1] [L1010] COND TRUE 2 \read(flag) [L1012] CALL, EXPR 2 pop(arr) [L976] CALL, EXPR 2 get_top() [L954] 2 return top; [L976] RET, EXPR 2 get_top() [L976] COND FALSE 2 !(get_top()==0) [L983] CALL 2 dec_top() [L950] 2 top-- [L983] RET 2 dec_top() [L984] CALL, EXPR 2 get_top() [L954] 2 return top; [L984] RET, EXPR 2 get_top() [L984] EXPR 2 stack[get_top()] [L984] 2 return stack[get_top()]; [L1012] RET, EXPR 2 pop(arr) [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1007] 2 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=3, m={4:0}, top=0] [L992] COND TRUE 1 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=3, m={4:0}, tmp=2, top=0] [L995] 1 tmp = __VERIFIER_nondet_uint() [L996] CALL 1 assume_abort_if_not(tmp < (5)) [L23] COND FALSE 1 !(!cond) [L996] RET 1 assume_abort_if_not(tmp < (5)) [L997] CALL, EXPR 1 push(arr,tmp) [L962] COND FALSE 1 !(top==(5)) [L969] CALL, EXPR 1 get_top() [L954] 1 return top; [L969] RET, EXPR 1 get_top() [L969] 1 stack[get_top()] = x [L970] CALL 1 inc_top() [L946] 1 top++ [L970] RET 1 inc_top() [L972] 1 return 0; [L997] RET, EXPR 1 push(arr,tmp) [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) [L999] 1 flag=(1) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=3, m={4:0}, tmp=1, top=1] [L992] 1 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=4, m={4:0}, tmp=1, top=1] [L1007] COND TRUE 2 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=3, m={4:0}, top=1] [L1010] COND TRUE 2 \read(flag) [L1012] CALL, EXPR 2 pop(arr) [L976] CALL, EXPR 2 get_top() [L954] 2 return top; [L976] RET, EXPR 2 get_top() [L976] COND FALSE 2 !(get_top()==0) [L983] CALL 2 dec_top() [L950] 2 top-- [L983] RET 2 dec_top() [L984] CALL, EXPR 2 get_top() [L954] 2 return top; [L984] RET, EXPR 2 get_top() [L984] EXPR 2 stack[get_top()] [L984] 2 return stack[get_top()]; [L1012] RET, EXPR 2 pop(arr) [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1007] 2 i++ VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=4, m={4:0}, top=0] [L992] COND TRUE 1 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=4, m={4:0}, tmp=1, top=0] [L1007] COND TRUE 2 i<(5) VAL [\old(arg)={0:0}, arg={0:0}, arr={3:0}, flag=1, i=4, m={4:0}, top=0] [L1010] COND TRUE 2 \read(flag) [L1012] CALL, EXPR 2 pop(arr) [L976] CALL, EXPR 2 get_top() [L954] 2 return top; [L976] RET, EXPR 2 get_top() [L976] COND TRUE 2 get_top()==0 [L979] 2 return (-2); [L1012] RET, EXPR 2 pop(arr) [L1012] COND TRUE 2 !(pop(arr)!=(-2)) [L1013] CALL 2 error() [L941] 2 reach_error() VAL [arr={3:0}, flag=1, m={4:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 55 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 3.7s, 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: 97, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 600 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 792 ConstructedInterpolants, 24 QuantifiedInterpolants, 4120 SizeOfPredicates, 52 NumberOfNonLiveVariables, 1384 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 538/992 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: ConditionalCommutativityOverallTime: 0.1s, ConditionalCommutativityCheckTime: 0.1s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 55 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.1s, 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: 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: ConditionalCommutativityOverallTime: 0.0s, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t2Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 55 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 3.9s, 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: 119, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1005 NumberOfCodeBlocks, 926 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1110 ConstructedInterpolants, 8 QuantifiedInterpolants, 8146 SizeOfPredicates, 42 NumberOfNonLiveVariables, 1623 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 1754/2215 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: ConditionalCommutativityOverallTime: 0.1s, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2024-10-17 20:32:20,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Ended with exit code 0 [2024-10-17 20:32:21,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Forceful destruction successful, exit code 0 [2024-10-17 20:32:21,352 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 [2024-10-17 20:32:21,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE