./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5e0f2637c3745e36a3708f37a9783771b3e1c15cb350f0e936eafd42058bd9cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:09:53,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:09:54,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:09:54,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:09:54,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:09:54,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:09:54,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:09:54,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:09:54,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:09:54,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:09:54,163 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:09:54,165 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:09:54,165 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:09:54,167 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:09:54,168 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:09:54,168 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:09:54,169 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:09:54,169 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:09:54,170 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:09:54,170 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:09:54,171 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:09:54,171 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:09:54,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:09:54,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:09:54,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:09:54,176 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:09:54,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:09:54,177 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:09:54,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:09:54,178 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:09:54,179 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:09:54,179 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:09:54,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:09:54,180 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:09:54,180 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:09:54,180 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:09:54,181 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:09:54,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:09:54,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:09:54,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:54,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:09:54,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:09:54,183 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:09:54,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:09:54,184 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:09:54,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:09:54,184 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e0f2637c3745e36a3708f37a9783771b3e1c15cb350f0e936eafd42058bd9cf [2023-11-19 04:09:54,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:09:54,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:09:54,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:09:54,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:09:54,607 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:09:54,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 04:09:57,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:09:58,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:09:58,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/sv-benchmarks/c/pthread-wmm/safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 04:09:58,315 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data/bc6f119a1/b42bbdd0cdce480b8fd301021627cebe/FLAG92904861e [2023-11-19 04:09:58,346 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data/bc6f119a1/b42bbdd0cdce480b8fd301021627cebe [2023-11-19 04:09:58,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:09:58,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:09:58,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:58,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:09:58,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:09:58,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:58" (1/1) ... [2023-11-19 04:09:58,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723b41de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:58, skipping insertion in model container [2023-11-19 04:09:58,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:58" (1/1) ... [2023-11-19 04:09:58,454 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:09:59,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:59,040 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:09:59,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:59,239 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:59,240 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:09:59,247 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:09:59,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59 WrapperNode [2023-11-19 04:09:59,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:59,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:59,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:09:59,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:09:59,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,325 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-19 04:09:59,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:59,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:09:59,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:09:59,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:09:59,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:09:59,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:09:59,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:09:59,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:09:59,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (1/1) ... [2023-11-19 04:09:59,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:59,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:09:59,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:09:59,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:09:59,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:09:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:09:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:09:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:09:59,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:09:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:09:59,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:09:59,509 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:09:59,510 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:09:59,510 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:09:59,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:09:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:09:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:09:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:09:59,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:09:59,514 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:09:59,782 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:09:59,785 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:10:00,381 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:10:00,628 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:10:00,628 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:10:00,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:00 BoogieIcfgContainer [2023-11-19 04:10:00,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:10:00,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:10:00,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:10:00,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:10:00,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:09:58" (1/3) ... [2023-11-19 04:10:00,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@983bbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:00, skipping insertion in model container [2023-11-19 04:10:00,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:59" (2/3) ... [2023-11-19 04:10:00,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@983bbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:00, skipping insertion in model container [2023-11-19 04:10:00,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:00" (3/3) ... [2023-11-19 04:10:00,651 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 04:10:00,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:10:00,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-19 04:10:00,675 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:10:00,745 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:10:00,784 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:10:00,801 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 127 transitions, 266 flow [2023-11-19 04:10:00,805 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 127 transitions, 266 flow [2023-11-19 04:10:00,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 127 transitions, 266 flow [2023-11-19 04:10:00,869 INFO L124 PetriNetUnfolderBase]: 4/124 cut-off events. [2023-11-19 04:10:00,869 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:10:00,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 124 events. 4/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-11-19 04:10:00,880 INFO L119 LiptonReduction]: Number of co-enabled transitions 2686 [2023-11-19 04:10:07,603 INFO L134 LiptonReduction]: Checked pairs total: 6418 [2023-11-19 04:10:07,603 INFO L136 LiptonReduction]: Total number of compositions: 128 [2023-11-19 04:10:07,613 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 36 transitions, 84 flow [2023-11-19 04:10:07,721 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1098 states, 1083 states have (on average 3.4930747922437675) internal successors, (3783), 1097 states have internal predecessors, (3783), 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) [2023-11-19 04:10:07,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:10:07,749 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@672f4417, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:10:07,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-19 04:10:07,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1083 states have (on average 3.4930747922437675) internal successors, (3783), 1097 states have internal predecessors, (3783), 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) [2023-11-19 04:10:07,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 04:10:07,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:07,762 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 04:10:07,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:07,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash 639, now seen corresponding path program 1 times [2023-11-19 04:10:07,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:07,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623535217] [2023-11-19 04:10:07,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:07,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:07,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:07,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623535217] [2023-11-19 04:10:07,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623535217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:07,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:07,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 04:10:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156583873] [2023-11-19 04:10:07,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:07,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:10:07,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:07,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:10:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:07,966 INFO L87 Difference]: Start difference. First operand has 1098 states, 1083 states have (on average 3.4930747922437675) internal successors, (3783), 1097 states have internal predecessors, (3783), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-19 04:10:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:08,076 INFO L93 Difference]: Finished difference Result 1024 states and 3277 transitions. [2023-11-19 04:10:08,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:10:08,079 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2023-11-19 04:10:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:08,109 INFO L225 Difference]: With dead ends: 1024 [2023-11-19 04:10:08,109 INFO L226 Difference]: Without dead ends: 1024 [2023-11-19 04:10:08,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:08,114 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:08,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:08,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2023-11-19 04:10:08,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1024. [2023-11-19 04:10:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1019 states have (on average 3.215897939156035) internal successors, (3277), 1023 states have internal predecessors, (3277), 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) [2023-11-19 04:10:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 3277 transitions. [2023-11-19 04:10:08,231 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 3277 transitions. Word has length 1 [2023-11-19 04:10:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:08,231 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 3277 transitions. [2023-11-19 04:10:08,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-19 04:10:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 3277 transitions. [2023-11-19 04:10:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:10:08,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:08,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 04:10:08,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:10:08,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:08,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 627617, now seen corresponding path program 1 times [2023-11-19 04:10:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:08,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866068637] [2023-11-19 04:10:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:08,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:08,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:08,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866068637] [2023-11-19 04:10:08,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866068637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:08,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:08,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:10:08,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884897348] [2023-11-19 04:10:08,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:08,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:08,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:08,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:08,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:08,600 INFO L87 Difference]: Start difference. First operand 1024 states and 3277 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 04:10:08,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:08,712 INFO L93 Difference]: Finished difference Result 837 states and 2640 transitions. [2023-11-19 04:10:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:08,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2023-11-19 04:10:08,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:08,722 INFO L225 Difference]: With dead ends: 837 [2023-11-19 04:10:08,722 INFO L226 Difference]: Without dead ends: 812 [2023-11-19 04:10:08,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:08,725 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:08,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2023-11-19 04:10:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2023-11-19 04:10:08,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 810 states have (on average 3.1790123456790123) internal successors, (2575), 811 states have internal predecessors, (2575), 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) [2023-11-19 04:10:08,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 2575 transitions. [2023-11-19 04:10:08,763 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 2575 transitions. Word has length 3 [2023-11-19 04:10:08,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:08,763 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 2575 transitions. [2023-11-19 04:10:08,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 04:10:08,764 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 2575 transitions. [2023-11-19 04:10:08,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:10:08,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:08,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:08,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:10:08,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:08,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:08,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1219348471, now seen corresponding path program 1 times [2023-11-19 04:10:08,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:08,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86962038] [2023-11-19 04:10:08,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:08,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:09,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:09,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86962038] [2023-11-19 04:10:09,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86962038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:09,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:09,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:10:09,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111647520] [2023-11-19 04:10:09,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:09,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:10:09,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:10:09,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:10:09,564 INFO L87 Difference]: Start difference. First operand 812 states and 2575 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-19 04:10:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:09,831 INFO L93 Difference]: Finished difference Result 687 states and 2150 transitions. [2023-11-19 04:10:09,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:10:09,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2023-11-19 04:10:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:09,838 INFO L225 Difference]: With dead ends: 687 [2023-11-19 04:10:09,839 INFO L226 Difference]: Without dead ends: 687 [2023-11-19 04:10:09,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:10:09,841 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 47 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:09,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 17 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:10:09,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-19 04:10:09,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2023-11-19 04:10:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 3.1341107871720117) internal successors, (2150), 686 states have internal predecessors, (2150), 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) [2023-11-19 04:10:09,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 2150 transitions. [2023-11-19 04:10:09,871 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 2150 transitions. Word has length 10 [2023-11-19 04:10:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:09,872 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 2150 transitions. [2023-11-19 04:10:09,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-19 04:10:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 2150 transitions. [2023-11-19 04:10:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:10:09,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:09,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:09,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:10:09,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:09,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1219348513, now seen corresponding path program 1 times [2023-11-19 04:10:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:09,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705455436] [2023-11-19 04:10:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:09,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:10,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:10,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705455436] [2023-11-19 04:10:10,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705455436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:10,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:10,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:10:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25199771] [2023-11-19 04:10:10,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:10,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:10:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:10,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:10:10,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:10:10,063 INFO L87 Difference]: Start difference. First operand 687 states and 2150 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-19 04:10:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:10,223 INFO L93 Difference]: Finished difference Result 762 states and 2295 transitions. [2023-11-19 04:10:10,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:10:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2023-11-19 04:10:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:10,230 INFO L225 Difference]: With dead ends: 762 [2023-11-19 04:10:10,231 INFO L226 Difference]: Without dead ends: 637 [2023-11-19 04:10:10,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:10:10,232 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:10,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 10 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-11-19 04:10:10,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2023-11-19 04:10:10,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 636 states have (on average 3.09748427672956) internal successors, (1970), 636 states have internal predecessors, (1970), 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) [2023-11-19 04:10:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1970 transitions. [2023-11-19 04:10:10,261 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1970 transitions. Word has length 10 [2023-11-19 04:10:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:10,261 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 1970 transitions. [2023-11-19 04:10:10,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-19 04:10:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1970 transitions. [2023-11-19 04:10:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:10:10,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:10,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:10,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:10:10,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:10,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:10,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1294256307, now seen corresponding path program 1 times [2023-11-19 04:10:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:10,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995271755] [2023-11-19 04:10:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:10,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:11,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:11,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995271755] [2023-11-19 04:10:11,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995271755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:11,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:11,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:11,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044914111] [2023-11-19 04:10:11,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:11,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:10:11,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:10:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:10:11,397 INFO L87 Difference]: Start difference. First operand 637 states and 1970 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:11,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:11,635 INFO L93 Difference]: Finished difference Result 657 states and 1961 transitions. [2023-11-19 04:10:11,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:10:11,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 04:10:11,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:11,644 INFO L225 Difference]: With dead ends: 657 [2023-11-19 04:10:11,644 INFO L226 Difference]: Without dead ends: 557 [2023-11-19 04:10:11,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:10:11,647 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:11,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 12 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:10:11,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2023-11-19 04:10:11,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2023-11-19 04:10:11,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 3.0323741007194243) internal successors, (1686), 556 states have internal predecessors, (1686), 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) [2023-11-19 04:10:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1686 transitions. [2023-11-19 04:10:11,677 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1686 transitions. Word has length 11 [2023-11-19 04:10:11,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:11,678 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 1686 transitions. [2023-11-19 04:10:11,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:11,679 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1686 transitions. [2023-11-19 04:10:11,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:10:11,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:11,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:11,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:10:11,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:11,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:11,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1760874590, now seen corresponding path program 1 times [2023-11-19 04:10:11,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:11,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479297941] [2023-11-19 04:10:11,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:11,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:12,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:12,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479297941] [2023-11-19 04:10:12,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479297941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:12,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:12,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:10:12,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104470833] [2023-11-19 04:10:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:12,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:10:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:12,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:10:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:10:12,854 INFO L87 Difference]: Start difference. First operand 557 states and 1686 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:10:13,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:13,076 INFO L93 Difference]: Finished difference Result 773 states and 2292 transitions. [2023-11-19 04:10:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:10:13,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 13 [2023-11-19 04:10:13,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:13,081 INFO L225 Difference]: With dead ends: 773 [2023-11-19 04:10:13,081 INFO L226 Difference]: Without dead ends: 373 [2023-11-19 04:10:13,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:10:13,082 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 75 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:13,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 8 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:10:13,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-19 04:10:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2023-11-19 04:10:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 2.8440860215053765) internal successors, (1058), 372 states have internal predecessors, (1058), 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) [2023-11-19 04:10:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 1058 transitions. [2023-11-19 04:10:13,099 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 1058 transitions. Word has length 13 [2023-11-19 04:10:13,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:13,100 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 1058 transitions. [2023-11-19 04:10:13,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-11-19 04:10:13,100 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 1058 transitions. [2023-11-19 04:10:13,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:10:13,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:13,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:13,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:10:13,102 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:13,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash -537545531, now seen corresponding path program 1 times [2023-11-19 04:10:13,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:13,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717023060] [2023-11-19 04:10:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:13,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:13,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:13,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717023060] [2023-11-19 04:10:13,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717023060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:13,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:13,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:10:13,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981573517] [2023-11-19 04:10:13,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:13,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:10:13,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:13,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:10:13,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:10:13,812 INFO L87 Difference]: Start difference. First operand 373 states and 1058 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-11-19 04:10:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:14,092 INFO L93 Difference]: Finished difference Result 559 states and 1584 transitions. [2023-11-19 04:10:14,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:10:14,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) Word has length 15 [2023-11-19 04:10:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:14,096 INFO L225 Difference]: With dead ends: 559 [2023-11-19 04:10:14,096 INFO L226 Difference]: Without dead ends: 319 [2023-11-19 04:10:14,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:10:14,098 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 70 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:14,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 7 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:10:14,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-19 04:10:14,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-19 04:10:14,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 2.779874213836478) internal successors, (884), 318 states have internal predecessors, (884), 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) [2023-11-19 04:10:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 884 transitions. [2023-11-19 04:10:14,112 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 884 transitions. Word has length 15 [2023-11-19 04:10:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:14,112 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 884 transitions. [2023-11-19 04:10:14,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-11-19 04:10:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 884 transitions. [2023-11-19 04:10:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:10:14,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:14,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:14,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:10:14,115 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:14,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:14,115 INFO L85 PathProgramCache]: Analyzing trace with hash -638538102, now seen corresponding path program 1 times [2023-11-19 04:10:14,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:14,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972135908] [2023-11-19 04:10:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:14,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:15,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:15,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972135908] [2023-11-19 04:10:15,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972135908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:15,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:15,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:10:15,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050502843] [2023-11-19 04:10:15,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:15,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:10:15,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:10:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:10:15,666 INFO L87 Difference]: Start difference. First operand 319 states and 884 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:16,462 INFO L93 Difference]: Finished difference Result 682 states and 1854 transitions. [2023-11-19 04:10:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 04:10:16,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 04:10:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:16,470 INFO L225 Difference]: With dead ends: 682 [2023-11-19 04:10:16,470 INFO L226 Difference]: Without dead ends: 613 [2023-11-19 04:10:16,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:10:16,471 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 81 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:16,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 11 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 04:10:16,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-11-19 04:10:16,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 384. [2023-11-19 04:10:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 383 states have (on average 2.775456919060052) internal successors, (1063), 383 states have internal predecessors, (1063), 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) [2023-11-19 04:10:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 1063 transitions. [2023-11-19 04:10:16,494 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 1063 transitions. Word has length 16 [2023-11-19 04:10:16,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:16,494 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 1063 transitions. [2023-11-19 04:10:16,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:16,495 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 1063 transitions. [2023-11-19 04:10:16,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:10:16,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:16,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:16,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:10:16,497 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:16,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:16,498 INFO L85 PathProgramCache]: Analyzing trace with hash -684233652, now seen corresponding path program 2 times [2023-11-19 04:10:16,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894328088] [2023-11-19 04:10:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:16,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:17,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:17,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894328088] [2023-11-19 04:10:17,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894328088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:17,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:17,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:10:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725507726] [2023-11-19 04:10:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:17,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 04:10:17,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 04:10:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:10:17,505 INFO L87 Difference]: Start difference. First operand 384 states and 1063 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:18,001 INFO L93 Difference]: Finished difference Result 515 states and 1404 transitions. [2023-11-19 04:10:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 04:10:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 04:10:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:18,007 INFO L225 Difference]: With dead ends: 515 [2023-11-19 04:10:18,007 INFO L226 Difference]: Without dead ends: 464 [2023-11-19 04:10:18,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-19 04:10:18,008 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 79 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:18,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 10 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:10:18,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-19 04:10:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 349. [2023-11-19 04:10:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 2.7701149425287355) internal successors, (964), 348 states have internal predecessors, (964), 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) [2023-11-19 04:10:18,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 964 transitions. [2023-11-19 04:10:18,028 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 964 transitions. Word has length 16 [2023-11-19 04:10:18,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:18,029 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 964 transitions. [2023-11-19 04:10:18,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 964 transitions. [2023-11-19 04:10:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:10:18,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:18,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:18,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 04:10:18,032 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:18,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:18,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1680083004, now seen corresponding path program 1 times [2023-11-19 04:10:18,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:18,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935409208] [2023-11-19 04:10:18,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:18,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:19,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:19,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935409208] [2023-11-19 04:10:19,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935409208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:19,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:19,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:10:19,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543524686] [2023-11-19 04:10:19,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:19,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:10:19,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:19,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:10:19,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:10:19,951 INFO L87 Difference]: Start difference. First operand 349 states and 964 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2023-11-19 04:10:20,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:20,423 INFO L93 Difference]: Finished difference Result 523 states and 1395 transitions. [2023-11-19 04:10:20,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 04:10:20,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) Word has length 17 [2023-11-19 04:10:20,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:20,428 INFO L225 Difference]: With dead ends: 523 [2023-11-19 04:10:20,429 INFO L226 Difference]: Without dead ends: 453 [2023-11-19 04:10:20,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-19 04:10:20,430 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 46 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:20,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 10 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:10:20,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-19 04:10:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 339. [2023-11-19 04:10:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 2.7366863905325443) internal successors, (925), 338 states have internal predecessors, (925), 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) [2023-11-19 04:10:20,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 925 transitions. [2023-11-19 04:10:20,449 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 925 transitions. Word has length 17 [2023-11-19 04:10:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:20,450 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 925 transitions. [2023-11-19 04:10:20,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 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) [2023-11-19 04:10:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 925 transitions. [2023-11-19 04:10:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:10:20,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:20,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:20,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 04:10:20,453 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:20,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:20,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1680089731, now seen corresponding path program 1 times [2023-11-19 04:10:20,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:20,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85641812] [2023-11-19 04:10:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:20,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:22,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:22,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85641812] [2023-11-19 04:10:22,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85641812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:22,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:22,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:10:22,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401933886] [2023-11-19 04:10:22,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:22,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 04:10:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:22,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 04:10:22,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:10:22,941 INFO L87 Difference]: Start difference. First operand 339 states and 925 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2023-11-19 04:10:23,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:23,440 INFO L93 Difference]: Finished difference Result 459 states and 1225 transitions. [2023-11-19 04:10:23,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 04:10:23,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) Word has length 17 [2023-11-19 04:10:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:23,444 INFO L225 Difference]: With dead ends: 459 [2023-11-19 04:10:23,445 INFO L226 Difference]: Without dead ends: 317 [2023-11-19 04:10:23,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-11-19 04:10:23,446 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 59 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:23,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 8 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:10:23,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-19 04:10:23,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 301. [2023-11-19 04:10:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 2.6266666666666665) internal successors, (788), 300 states have internal predecessors, (788), 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) [2023-11-19 04:10:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 788 transitions. [2023-11-19 04:10:23,463 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 788 transitions. Word has length 17 [2023-11-19 04:10:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:23,463 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 788 transitions. [2023-11-19 04:10:23,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2023-11-19 04:10:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 788 transitions. [2023-11-19 04:10:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:10:23,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:23,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:23,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 04:10:23,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:23,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:23,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1680076277, now seen corresponding path program 1 times [2023-11-19 04:10:23,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:23,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550701644] [2023-11-19 04:10:23,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:23,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:23,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:23,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550701644] [2023-11-19 04:10:23,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550701644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:23,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:23,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:23,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362936748] [2023-11-19 04:10:23,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:23,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:10:23,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:23,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:10:23,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:10:23,707 INFO L87 Difference]: Start difference. First operand 301 states and 788 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 04:10:23,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:23,856 INFO L93 Difference]: Finished difference Result 302 states and 703 transitions. [2023-11-19 04:10:23,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:10:23,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) Word has length 17 [2023-11-19 04:10:23,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:23,859 INFO L225 Difference]: With dead ends: 302 [2023-11-19 04:10:23,859 INFO L226 Difference]: Without dead ends: 229 [2023-11-19 04:10:23,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:10:23,860 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:23,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 8 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-11-19 04:10:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2023-11-19 04:10:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 2.307017543859649) internal successors, (526), 228 states have internal predecessors, (526), 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) [2023-11-19 04:10:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 526 transitions. [2023-11-19 04:10:23,875 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 526 transitions. Word has length 17 [2023-11-19 04:10:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:23,875 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 526 transitions. [2023-11-19 04:10:23,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 04:10:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 526 transitions. [2023-11-19 04:10:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:10:23,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:23,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:23,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 04:10:23,878 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:23,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash -593047032, now seen corresponding path program 1 times [2023-11-19 04:10:23,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:23,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091119311] [2023-11-19 04:10:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:23,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:24,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:24,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:24,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091119311] [2023-11-19 04:10:24,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091119311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:24,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:24,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:10:24,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37865868] [2023-11-19 04:10:24,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:24,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:10:24,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:24,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:10:24,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:10:24,212 INFO L87 Difference]: Start difference. First operand 229 states and 526 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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) [2023-11-19 04:10:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:24,392 INFO L93 Difference]: Finished difference Result 187 states and 386 transitions. [2023-11-19 04:10:24,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:10:24,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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) Word has length 18 [2023-11-19 04:10:24,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:24,395 INFO L225 Difference]: With dead ends: 187 [2023-11-19 04:10:24,395 INFO L226 Difference]: Without dead ends: 145 [2023-11-19 04:10:24,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:10:24,396 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 32 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:24,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 7 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:10:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-19 04:10:24,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-19 04:10:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 2.0) internal successors, (288), 144 states have internal predecessors, (288), 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) [2023-11-19 04:10:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 288 transitions. [2023-11-19 04:10:24,407 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 288 transitions. Word has length 18 [2023-11-19 04:10:24,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:24,407 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 288 transitions. [2023-11-19 04:10:24,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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) [2023-11-19 04:10:24,408 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 288 transitions. [2023-11-19 04:10:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:10:24,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:24,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:24,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 04:10:24,410 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:24,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:24,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1331279158, now seen corresponding path program 1 times [2023-11-19 04:10:24,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:24,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525759002] [2023-11-19 04:10:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:24,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:24,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:24,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525759002] [2023-11-19 04:10:24,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525759002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:24,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:24,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:10:24,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255804673] [2023-11-19 04:10:24,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:24,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:10:24,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:24,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:10:24,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:10:24,768 INFO L87 Difference]: Start difference. First operand 145 states and 288 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2023-11-19 04:10:24,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:24,920 INFO L93 Difference]: Finished difference Result 125 states and 246 transitions. [2023-11-19 04:10:24,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:10:24,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) Word has length 20 [2023-11-19 04:10:24,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:24,923 INFO L225 Difference]: With dead ends: 125 [2023-11-19 04:10:24,923 INFO L226 Difference]: Without dead ends: 115 [2023-11-19 04:10:24,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:10:24,924 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:24,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:24,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-19 04:10:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2023-11-19 04:10:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.9787234042553192) internal successors, (186), 94 states have internal predecessors, (186), 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) [2023-11-19 04:10:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 186 transitions. [2023-11-19 04:10:24,932 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 186 transitions. Word has length 20 [2023-11-19 04:10:24,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:24,932 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 186 transitions. [2023-11-19 04:10:24,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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) [2023-11-19 04:10:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 186 transitions. [2023-11-19 04:10:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 04:10:24,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:24,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:24,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 04:10:24,934 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 04:10:24,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1552265248, now seen corresponding path program 1 times [2023-11-19 04:10:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:24,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058172627] [2023-11-19 04:10:24,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:24,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:10:25,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:10:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:10:25,222 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:10:25,223 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:10:25,224 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-11-19 04:10:25,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2023-11-19 04:10:25,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-11-19 04:10:25,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2023-11-19 04:10:25,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2023-11-19 04:10:25,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2023-11-19 04:10:25,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-11-19 04:10:25,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-11-19 04:10:25,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2023-11-19 04:10:25,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2023-11-19 04:10:25,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2023-11-19 04:10:25,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2023-11-19 04:10:25,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2023-11-19 04:10:25,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 04:10:25,233 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:25,241 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 04:10:25,241 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:10:25,348 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 04:10:25,350 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 04:10:25,369 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-19 04:10:25,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:10:25 BasicIcfg [2023-11-19 04:10:25,401 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:10:25,402 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:10:25,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:10:25,403 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:10:25,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:00" (3/4) ... [2023-11-19 04:10:25,408 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:10:25,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:10:25,410 INFO L158 Benchmark]: Toolchain (without parser) took 27059.33ms. Allocated memory was 127.9MB in the beginning and 482.3MB in the end (delta: 354.4MB). Free memory was 87.4MB in the beginning and 258.5MB in the end (delta: -171.1MB). Peak memory consumption was 184.4MB. Max. memory is 16.1GB. [2023-11-19 04:10:25,411 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 127.9MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:10:25,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.97ms. Allocated memory is still 127.9MB. Free memory was 87.2MB in the beginning and 61.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 04:10:25,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.63ms. Allocated memory is still 127.9MB. Free memory was 61.5MB in the beginning and 58.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:10:25,414 INFO L158 Benchmark]: Boogie Preprocessor took 88.13ms. Allocated memory is still 127.9MB. Free memory was 58.6MB in the beginning and 56.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:10:25,415 INFO L158 Benchmark]: RCFGBuilder took 1220.97ms. Allocated memory was 127.9MB in the beginning and 190.8MB in the end (delta: 62.9MB). Free memory was 56.3MB in the beginning and 114.8MB in the end (delta: -58.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:10:25,416 INFO L158 Benchmark]: TraceAbstraction took 24761.32ms. Allocated memory was 190.8MB in the beginning and 482.3MB in the end (delta: 291.5MB). Free memory was 113.8MB in the beginning and 259.6MB in the end (delta: -145.7MB). Peak memory consumption was 146.6MB. Max. memory is 16.1GB. [2023-11-19 04:10:25,416 INFO L158 Benchmark]: Witness Printer took 7.29ms. Allocated memory is still 482.3MB. Free memory was 259.6MB in the beginning and 258.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:10:25,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 127.9MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 895.97ms. Allocated memory is still 127.9MB. Free memory was 87.2MB in the beginning and 61.5MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.63ms. Allocated memory is still 127.9MB. Free memory was 61.5MB in the beginning and 58.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.13ms. Allocated memory is still 127.9MB. Free memory was 58.6MB in the beginning and 56.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1220.97ms. Allocated memory was 127.9MB in the beginning and 190.8MB in the end (delta: 62.9MB). Free memory was 56.3MB in the beginning and 114.8MB in the end (delta: -58.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 24761.32ms. Allocated memory was 190.8MB in the beginning and 482.3MB in the end (delta: 291.5MB). Free memory was 113.8MB in the beginning and 259.6MB in the end (delta: -145.7MB). Peak memory consumption was 146.6MB. Max. memory is 16.1GB. * Witness Printer took 7.29ms. Allocated memory is still 482.3MB. Free memory was 259.6MB in the beginning and 258.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 133 PlacesBefore, 44 PlacesAfterwards, 127 TransitionsBefore, 36 TransitionsAfterwards, 2686 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 128 TotalNumberOfCompositions, 6418 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3520, independent: 3375, independent conditional: 0, independent unconditional: 3375, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1988, independent: 1947, independent conditional: 0, independent unconditional: 1947, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1988, independent: 1908, independent conditional: 0, independent unconditional: 1908, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 568, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 491, dependent conditional: 0, dependent unconditional: 491, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3520, independent: 1428, independent conditional: 0, independent unconditional: 1428, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 1988, unknown conditional: 0, unknown unconditional: 1988] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p2_EAX = 0; [L715] 0 int __unbuffered_p2_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L846] 0 pthread_t t1849; [L847] FCALL, FORK 0 pthread_create(&t1849, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1849={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L848] 0 pthread_t t1850; [L849] FCALL, FORK 0 pthread_create(&t1850, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1849={5:0}, t1850={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L850] 0 pthread_t t1851; [L743] 1 y$w_buff1 = y$w_buff0 [L744] 1 y$w_buff0 = 2 [L745] 1 y$w_buff1_used = y$w_buff0_used [L746] 1 y$w_buff0_used = (_Bool)1 [L747] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L747] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L748] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L749] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L750] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L751] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L752] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L755] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L772] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L775] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L778] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L779] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L780] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L781] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L782] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L851] FCALL, FORK 0 pthread_create(&t1851, ((void *)0), P2, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1849={5:0}, t1850={6:0}, t1851={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L792] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L793] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L794] 3 y$flush_delayed = weak$$choice2 [L795] 3 y$mem_tmp = y [L796] 3 y = !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L797] 3 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff0)) [L798] 3 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff1 : y$w_buff1)) [L799] 3 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used)) [L800] 3 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L801] 3 y$r_buff0_thd3 = weak$$choice2 ? y$r_buff0_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff0_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3)) [L802] 3 y$r_buff1_thd3 = weak$$choice2 ? y$r_buff1_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff1_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L803] 3 __unbuffered_p2_EAX = y [L804] 3 y = y$flush_delayed ? y$mem_tmp : y [L805] 3 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L808] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L809] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L810] 3 y$flush_delayed = weak$$choice2 [L811] 3 y$mem_tmp = y [L812] 3 y = !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1) [L813] 3 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff0)) [L814] 3 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff1 : y$w_buff1)) [L815] 3 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used)) [L816] 3 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L817] 3 y$r_buff0_thd3 = weak$$choice2 ? y$r_buff0_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff0_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3)) [L818] 3 y$r_buff1_thd3 = weak$$choice2 ? y$r_buff1_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff1_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L819] 3 __unbuffered_p2_EBX = y [L820] 3 y = y$flush_delayed ? y$mem_tmp : y [L821] 3 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L824] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L825] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L826] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L827] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L828] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=1] [L831] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 3 return 0; [L758] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L759] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L760] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L761] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L762] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L767] 1 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L855] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L855] RET 0 assume_abort_if_not(main$tmp_guard0) [L857] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L858] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L859] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L860] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L861] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1849={5:0}, t1850={6:0}, t1851={3:0}, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=1, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] [L864] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L865] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L866] 0 y$flush_delayed = weak$$choice2 [L867] 0 y$mem_tmp = y [L868] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L869] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L870] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L871] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L872] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L873] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L874] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 1) [L876] 0 y = y$flush_delayed ? y$mem_tmp : y [L877] 0 y$flush_delayed = (_Bool)0 [L879] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=2] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 152 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 24.5s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 609 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 609 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1615 IncrementalHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 150 mSolverCounterUnsat, 45 mSDtfsCounter, 1615 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1098occurred in iteration=0, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 494 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 2147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:10:25,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5e0f2637c3745e36a3708f37a9783771b3e1c15cb350f0e936eafd42058bd9cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:10:28,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:10:28,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:10:28,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:10:28,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:10:28,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:10:28,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:10:28,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:10:28,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:10:28,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:10:28,746 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:10:28,747 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:10:28,748 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:10:28,750 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:10:28,750 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:10:28,751 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:10:28,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:10:28,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:10:28,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:10:28,755 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:10:28,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:10:28,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:10:28,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:10:28,757 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:10:28,758 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:10:28,758 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:10:28,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:10:28,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:10:28,760 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:10:28,761 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:10:28,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:10:28,763 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:10:28,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:10:28,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:10:28,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:10:28,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:10:28,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:28,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:10:28,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:10:28,767 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:10:28,767 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:10:28,767 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:10:28,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:10:28,768 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e0f2637c3745e36a3708f37a9783771b3e1c15cb350f0e936eafd42058bd9cf [2023-11-19 04:10:29,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:10:29,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:10:29,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:10:29,365 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:10:29,366 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:10:29,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 04:10:32,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:10:33,055 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:10:33,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/sv-benchmarks/c/pthread-wmm/safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 04:10:33,096 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data/2574bd57e/5d5b4fb96f0f4077b6c7635c10a14530/FLAGee1c9778a [2023-11-19 04:10:33,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/data/2574bd57e/5d5b4fb96f0f4077b6c7635c10a14530 [2023-11-19 04:10:33,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:10:33,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:10:33,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:33,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:10:33,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:10:33,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:33" (1/1) ... [2023-11-19 04:10:33,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7660cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:33, skipping insertion in model container [2023-11-19 04:10:33,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:33" (1/1) ... [2023-11-19 04:10:33,191 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:33,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:33,888 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:10:33,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:34,053 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:10:34,054 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:10:34,063 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:10:34,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34 WrapperNode [2023-11-19 04:10:34,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:34,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:34,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:10:34,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:10:34,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,170 INFO L138 Inliner]: procedures = 179, calls = 55, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2023-11-19 04:10:34,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:34,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:10:34,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:10:34,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:10:34,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,204 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:10:34,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:10:34,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:10:34,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:10:34,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (1/1) ... [2023-11-19 04:10:34,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:34,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:34,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:10:34,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77b99fa1-333f-4de4-ab68-9aee17c4b281/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:10:34,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:10:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:10:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:10:34,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:10:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:10:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:10:34,337 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:10:34,338 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:10:34,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:10:34,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:10:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:10:34,344 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:10:34,544 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:10:34,546 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:10:35,141 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:10:35,492 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:10:35,493 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:10:35,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:35 BoogieIcfgContainer [2023-11-19 04:10:35,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:10:35,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:10:35,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:10:35,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:10:35,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:10:33" (1/3) ... [2023-11-19 04:10:35,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677ec7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:35, skipping insertion in model container [2023-11-19 04:10:35,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34" (2/3) ... [2023-11-19 04:10:35,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677ec7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:35, skipping insertion in model container [2023-11-19 04:10:35,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:35" (3/3) ... [2023-11-19 04:10:35,517 INFO L112 eAbstractionObserver]: Analyzing ICFG safe003_power.oepc_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 04:10:35,543 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:10:35,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-19 04:10:35,545 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:10:35,655 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:10:35,708 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:10:35,727 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 128 transitions, 268 flow [2023-11-19 04:10:35,731 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 128 transitions, 268 flow [2023-11-19 04:10:35,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 128 transitions, 268 flow [2023-11-19 04:10:35,824 INFO L124 PetriNetUnfolderBase]: 4/125 cut-off events. [2023-11-19 04:10:35,825 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:10:35,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 125 events. 4/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-11-19 04:10:35,844 INFO L119 LiptonReduction]: Number of co-enabled transitions 2686