./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E --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 a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:07:11,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:07:11,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-14 04:07:11,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:07:11,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:07:11,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:07:11,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:07:11,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:07:11,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:07:11,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:07:11,475 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:07:11,475 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:07:11,475 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:07:11,475 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:07:11,475 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:07:11,475 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:07:11,476 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:07:11,476 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:07:11,476 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:07:11,476 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:07:11,476 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:07:11,476 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:07:11,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 04:07:11,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 04:07:11,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:07:11,477 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:07:11,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:07:11,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:07:11,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:07:11,477 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 04:07:11,477 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:07:11,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:07:11,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:07:11,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:07:11,479 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E 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 -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2024-11-14 04:07:11,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:07:11,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:07:11,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:07:11,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:07:11,783 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:07:11,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i Unable to find full path for "g++" [2024-11-14 04:07:13,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:07:14,125 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:07:14,126 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2024-11-14 04:07:14,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/data/35266e874/61f6a35aa1d947d7825398a64149a09b/FLAG0b8c171a2 [2024-11-14 04:07:14,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/data/35266e874/61f6a35aa1d947d7825398a64149a09b [2024-11-14 04:07:14,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:07:14,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:07:14,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:07:14,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:07:14,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:07:14,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:07:14" (1/1) ... [2024-11-14 04:07:14,194 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c71087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:14, skipping insertion in model container [2024-11-14 04:07:14,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:07:14" (1/1) ... [2024-11-14 04:07:14,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:07:15,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:07:15,205 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:07:15,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:07:15,424 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:07:15,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15 WrapperNode [2024-11-14 04:07:15,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:07:15,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:07:15,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:07:15,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:07:15,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,494 INFO L138 Inliner]: procedures = 488, calls = 40, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 216 [2024-11-14 04:07:15,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:07:15,495 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:07:15,495 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:07:15,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:07:15,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:07:15,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:07:15,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:07:15,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:07:15,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (1/1) ... [2024-11-14 04:07:15,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:07:15,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:15,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:07:15,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:07:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-11-14 04:07:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-11-14 04:07:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:07:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-11-14 04:07:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-11-14 04:07:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-14 04:07:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:07:15,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-14 04:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:07:15,608 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 04:07:15,923 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:07:15,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:07:16,297 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 04:07:16,297 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:07:16,500 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:07:16,501 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 04:07:16,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:16 BoogieIcfgContainer [2024-11-14 04:07:16,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:07:16,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:07:16,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:07:16,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:07:16,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:07:14" (1/3) ... [2024-11-14 04:07:16,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279570a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:07:16, skipping insertion in model container [2024-11-14 04:07:16,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:07:15" (2/3) ... [2024-11-14 04:07:16,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279570a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:07:16, skipping insertion in model container [2024-11-14 04:07:16,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:16" (3/3) ... [2024-11-14 04:07:16,514 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-11-14 04:07:16,535 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:07:16,536 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG race-4_1-thread_local_vars.i that has 3 procedures, 81 locations, 1 initial locations, 2 loop locations, and 11 error locations. [2024-11-14 04:07:16,537 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 04:07:16,624 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-14 04:07:16,667 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 152 transitions, 331 flow [2024-11-14 04:07:16,961 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3627 states, 3574 states have (on average 3.343872411863458) internal successors, (11951), 3626 states have internal predecessors, (11951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:16,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:07:17,003 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@7a3974fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:07:17,003 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-14 04:07:17,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 3627 states, 3574 states have (on average 3.343872411863458) internal successors, (11951), 3626 states have internal predecessors, (11951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:07:17,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:17,027 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:07:17,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:17,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash 19098113, now seen corresponding path program 1 times [2024-11-14 04:07:17,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:17,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138589299] [2024-11-14 04:07:17,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:17,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:17,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:17,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138589299] [2024-11-14 04:07:17,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138589299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:17,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:17,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:07:17,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437061331] [2024-11-14 04:07:17,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:17,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:17,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:17,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:17,558 INFO L87 Difference]: Start difference. First operand has 3627 states, 3574 states have (on average 3.343872411863458) internal successors, (11951), 3626 states have internal predecessors, (11951), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:17,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:17,922 INFO L93 Difference]: Finished difference Result 6835 states and 22673 transitions. [2024-11-14 04:07:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:17,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-14 04:07:17,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:17,989 INFO L225 Difference]: With dead ends: 6835 [2024-11-14 04:07:17,990 INFO L226 Difference]: Without dead ends: 3199 [2024-11-14 04:07:18,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:18,012 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 20 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:18,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 62 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:07:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2024-11-14 04:07:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 3199. [2024-11-14 04:07:18,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3157 states have (on average 3.073170731707317) internal successors, (9702), 3198 states have internal predecessors, (9702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 9702 transitions. [2024-11-14 04:07:18,334 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 9702 transitions. Word has length 4 [2024-11-14 04:07:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:18,335 INFO L471 AbstractCegarLoop]: Abstraction has 3199 states and 9702 transitions. [2024-11-14 04:07:18,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 9702 transitions. [2024-11-14 04:07:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 04:07:18,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:18,337 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:18,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:07:18,340 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:18,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1835414513, now seen corresponding path program 1 times [2024-11-14 04:07:18,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:18,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855271955] [2024-11-14 04:07:18,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:18,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:18,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:18,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:18,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855271955] [2024-11-14 04:07:18,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855271955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:18,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:18,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:07:18,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561253569] [2024-11-14 04:07:18,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:18,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:07:18,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:18,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:07:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:07:18,600 INFO L87 Difference]: Start difference. First operand 3199 states and 9702 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-14 04:07:18,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:18,986 INFO L93 Difference]: Finished difference Result 3202 states and 9704 transitions. [2024-11-14 04:07:18,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:07:18,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 [2024-11-14 04:07:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:19,008 INFO L225 Difference]: With dead ends: 3202 [2024-11-14 04:07:19,008 INFO L226 Difference]: Without dead ends: 1682 [2024-11-14 04:07:19,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:07:19,012 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 123 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:19,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 166 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:07:19,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-14 04:07:19,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1679. [2024-11-14 04:07:19,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1660 states have (on average 2.903012048192771) internal successors, (4819), 1678 states have internal predecessors, (4819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:19,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 4819 transitions. [2024-11-14 04:07:19,096 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 4819 transitions. Word has length 10 [2024-11-14 04:07:19,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:19,096 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 4819 transitions. [2024-11-14 04:07:19,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-14 04:07:19,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 4819 transitions. [2024-11-14 04:07:19,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 04:07:19,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:19,097 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:19,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:07:19,098 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:19,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:19,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1669347682, now seen corresponding path program 1 times [2024-11-14 04:07:19,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:19,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517570874] [2024-11-14 04:07:19,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:19,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:19,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:19,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517570874] [2024-11-14 04:07:19,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517570874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:19,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:19,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:07:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514025287] [2024-11-14 04:07:19,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:19,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:19,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:19,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:19,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:19,266 INFO L87 Difference]: Start difference. First operand 1679 states and 4819 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2024-11-14 04:07:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:19,434 INFO L93 Difference]: Finished difference Result 2747 states and 8328 transitions. [2024-11-14 04:07:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2024-11-14 04:07:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:19,462 INFO L225 Difference]: With dead ends: 2747 [2024-11-14 04:07:19,462 INFO L226 Difference]: Without dead ends: 2740 [2024-11-14 04:07:19,464 INFO L431 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 [2024-11-14 04:07:19,467 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 48 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:19,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 57 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:07:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2024-11-14 04:07:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1675. [2024-11-14 04:07:19,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1656 states have (on average 2.907004830917874) internal successors, (4814), 1674 states have internal predecessors, (4814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:19,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 4814 transitions. [2024-11-14 04:07:19,568 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 4814 transitions. Word has length 10 [2024-11-14 04:07:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:19,568 INFO L471 AbstractCegarLoop]: Abstraction has 1675 states and 4814 transitions. [2024-11-14 04:07:19,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2024-11-14 04:07:19,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 4814 transitions. [2024-11-14 04:07:19,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 04:07:19,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:19,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:19,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:07:19,572 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:19,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:19,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1404782440, now seen corresponding path program 1 times [2024-11-14 04:07:19,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:19,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862095448] [2024-11-14 04:07:19,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:19,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:19,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:19,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862095448] [2024-11-14 04:07:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862095448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:19,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:19,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:07:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813973895] [2024-11-14 04:07:19,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:19,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:19,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:19,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:19,771 INFO L87 Difference]: Start difference. First operand 1675 states and 4814 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2024-11-14 04:07:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:19,919 INFO L93 Difference]: Finished difference Result 1675 states and 4814 transitions. [2024-11-14 04:07:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:19,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2024-11-14 04:07:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:19,941 INFO L225 Difference]: With dead ends: 1675 [2024-11-14 04:07:19,941 INFO L226 Difference]: Without dead ends: 1459 [2024-11-14 04:07:19,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:19,944 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 22 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:19,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 54 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:07:19,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-11-14 04:07:20,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1459. [2024-11-14 04:07:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1444 states have (on average 2.930747922437673) internal successors, (4232), 1458 states have internal predecessors, (4232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 4232 transitions. [2024-11-14 04:07:20,054 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 4232 transitions. Word has length 15 [2024-11-14 04:07:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:20,056 INFO L471 AbstractCegarLoop]: Abstraction has 1459 states and 4232 transitions. [2024-11-14 04:07:20,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2024-11-14 04:07:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 4232 transitions. [2024-11-14 04:07:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:07:20,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:20,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:20,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:07:20,060 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:20,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:20,060 INFO L85 PathProgramCache]: Analyzing trace with hash 333466311, now seen corresponding path program 1 times [2024-11-14 04:07:20,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:20,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552269109] [2024-11-14 04:07:20,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:20,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:20,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:20,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552269109] [2024-11-14 04:07:20,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552269109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:20,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:20,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:07:20,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727440382] [2024-11-14 04:07:20,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:20,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:20,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:20,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:20,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:20,254 INFO L87 Difference]: Start difference. First operand 1459 states and 4232 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:20,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:20,429 INFO L93 Difference]: Finished difference Result 1835 states and 5087 transitions. [2024-11-14 04:07:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:20,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2024-11-14 04:07:20,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:20,444 INFO L225 Difference]: With dead ends: 1835 [2024-11-14 04:07:20,444 INFO L226 Difference]: Without dead ends: 1818 [2024-11-14 04:07:20,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:20,446 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 42 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:20,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 65 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:07:20,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2024-11-14 04:07:20,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1750. [2024-11-14 04:07:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1735 states have (on average 2.8610951008645533) internal successors, (4964), 1749 states have internal predecessors, (4964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 4964 transitions. [2024-11-14 04:07:20,508 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 4964 transitions. Word has length 19 [2024-11-14 04:07:20,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:20,509 INFO L471 AbstractCegarLoop]: Abstraction has 1750 states and 4964 transitions. [2024-11-14 04:07:20,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:20,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 4964 transitions. [2024-11-14 04:07:20,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:07:20,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:20,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:20,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:07:20,511 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:20,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:20,511 INFO L85 PathProgramCache]: Analyzing trace with hash 333466312, now seen corresponding path program 1 times [2024-11-14 04:07:20,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:20,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267842470] [2024-11-14 04:07:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:20,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:20,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:20,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267842470] [2024-11-14 04:07:20,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267842470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:20,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:20,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:07:20,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681135028] [2024-11-14 04:07:20,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:20,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:20,675 INFO L87 Difference]: Start difference. First operand 1750 states and 4964 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:20,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:20,832 INFO L93 Difference]: Finished difference Result 1750 states and 4964 transitions. [2024-11-14 04:07:20,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:20,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2024-11-14 04:07:20,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:20,846 INFO L225 Difference]: With dead ends: 1750 [2024-11-14 04:07:20,846 INFO L226 Difference]: Without dead ends: 1733 [2024-11-14 04:07:20,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:20,848 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 43 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:20,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 65 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:07:20,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2024-11-14 04:07:20,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2024-11-14 04:07:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1721 states have (on average 2.854735618826264) internal successors, (4913), 1732 states have internal predecessors, (4913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 4913 transitions. [2024-11-14 04:07:20,910 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 4913 transitions. Word has length 19 [2024-11-14 04:07:20,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:20,911 INFO L471 AbstractCegarLoop]: Abstraction has 1733 states and 4913 transitions. [2024-11-14 04:07:20,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 4913 transitions. [2024-11-14 04:07:20,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:07:20,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:20,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:20,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:07:20,913 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:20,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:20,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1259062321, now seen corresponding path program 1 times [2024-11-14 04:07:20,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:20,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138537290] [2024-11-14 04:07:20,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:20,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:21,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:21,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138537290] [2024-11-14 04:07:21,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138537290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:21,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:21,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:07:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182309158] [2024-11-14 04:07:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:21,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:21,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:21,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:21,030 INFO L87 Difference]: Start difference. First operand 1733 states and 4913 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:21,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:21,151 INFO L93 Difference]: Finished difference Result 1733 states and 4913 transitions. [2024-11-14 04:07:21,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:21,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2024-11-14 04:07:21,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:21,163 INFO L225 Difference]: With dead ends: 1733 [2024-11-14 04:07:21,164 INFO L226 Difference]: Without dead ends: 1419 [2024-11-14 04:07:21,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:21,166 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:21,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 59 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:07:21,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2024-11-14 04:07:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1419. [2024-11-14 04:07:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1412 states have (on average 2.853399433427762) internal successors, (4029), 1418 states have internal predecessors, (4029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4029 transitions. [2024-11-14 04:07:21,214 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4029 transitions. Word has length 19 [2024-11-14 04:07:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:21,215 INFO L471 AbstractCegarLoop]: Abstraction has 1419 states and 4029 transitions. [2024-11-14 04:07:21,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4029 transitions. [2024-11-14 04:07:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 04:07:21,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:21,217 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:21,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 04:07:21,217 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:21,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:21,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1120756294, now seen corresponding path program 1 times [2024-11-14 04:07:21,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:21,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978068139] [2024-11-14 04:07:21,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:21,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:21,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978068139] [2024-11-14 04:07:21,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978068139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:21,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:21,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:07:21,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029620997] [2024-11-14 04:07:21,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:21,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:21,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:21,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:21,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:21,305 INFO L87 Difference]: Start difference. First operand 1419 states and 4029 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:21,465 INFO L93 Difference]: Finished difference Result 2700 states and 7654 transitions. [2024-11-14 04:07:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:21,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 [2024-11-14 04:07:21,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:21,475 INFO L225 Difference]: With dead ends: 2700 [2024-11-14 04:07:21,476 INFO L226 Difference]: Without dead ends: 1250 [2024-11-14 04:07:21,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:21,479 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 29 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:21,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 46 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:07:21,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-14 04:07:21,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1146. [2024-11-14 04:07:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1140 states have (on average 2.713157894736842) internal successors, (3093), 1145 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 3093 transitions. [2024-11-14 04:07:21,518 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 3093 transitions. Word has length 20 [2024-11-14 04:07:21,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:21,519 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 3093 transitions. [2024-11-14 04:07:21,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 3093 transitions. [2024-11-14 04:07:21,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 04:07:21,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:21,521 INFO L215 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, 1] [2024-11-14 04:07:21,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:07:21,522 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:21,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:21,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1120674943, now seen corresponding path program 1 times [2024-11-14 04:07:21,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:21,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301713138] [2024-11-14 04:07:21,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:21,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:07:21,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:21,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301713138] [2024-11-14 04:07:21,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301713138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:21,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:21,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:07:21,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507265018] [2024-11-14 04:07:21,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:21,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:07:21,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:21,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:07:21,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:07:21,780 INFO L87 Difference]: Start difference. First operand 1146 states and 3093 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:21,965 INFO L93 Difference]: Finished difference Result 2074 states and 5754 transitions. [2024-11-14 04:07:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:07:21,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2024-11-14 04:07:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:21,982 INFO L225 Difference]: With dead ends: 2074 [2024-11-14 04:07:21,982 INFO L226 Difference]: Without dead ends: 1758 [2024-11-14 04:07:21,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:07:21,985 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 67 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:21,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 73 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:07:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2024-11-14 04:07:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1342. [2024-11-14 04:07:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1336 states have (on average 2.7095808383233533) internal successors, (3620), 1341 states have internal predecessors, (3620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 3620 transitions. [2024-11-14 04:07:22,035 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 3620 transitions. Word has length 23 [2024-11-14 04:07:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:22,037 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 3620 transitions. [2024-11-14 04:07:22,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 3620 transitions. [2024-11-14 04:07:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:07:22,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:22,040 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:22,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:07:22,040 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:22,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:22,041 INFO L85 PathProgramCache]: Analyzing trace with hash -345055108, now seen corresponding path program 1 times [2024-11-14 04:07:22,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:22,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714695687] [2024-11-14 04:07:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:22,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:22,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:22,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714695687] [2024-11-14 04:07:22,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714695687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:22,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:22,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:07:22,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958916157] [2024-11-14 04:07:22,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:22,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:22,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:22,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:22,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:22,150 INFO L87 Difference]: Start difference. First operand 1342 states and 3620 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:22,262 INFO L93 Difference]: Finished difference Result 1342 states and 3620 transitions. [2024-11-14 04:07:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:22,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-14 04:07:22,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:22,273 INFO L225 Difference]: With dead ends: 1342 [2024-11-14 04:07:22,274 INFO L226 Difference]: Without dead ends: 1338 [2024-11-14 04:07:22,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:22,275 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:22,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 42 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:07:22,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-14 04:07:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1338. [2024-11-14 04:07:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1333 states have (on average 2.7104276069017255) internal successors, (3613), 1337 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 3613 transitions. [2024-11-14 04:07:22,319 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 3613 transitions. Word has length 26 [2024-11-14 04:07:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:22,320 INFO L471 AbstractCegarLoop]: Abstraction has 1338 states and 3613 transitions. [2024-11-14 04:07:22,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 3613 transitions. [2024-11-14 04:07:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:07:22,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:22,322 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:22,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 04:07:22,323 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:22,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:22,323 INFO L85 PathProgramCache]: Analyzing trace with hash -345055107, now seen corresponding path program 1 times [2024-11-14 04:07:22,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:22,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668137536] [2024-11-14 04:07:22,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:22,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:22,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:22,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668137536] [2024-11-14 04:07:22,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668137536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:22,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:22,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:07:22,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171434835] [2024-11-14 04:07:22,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:22,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:07:22,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:22,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:07:22,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:22,476 INFO L87 Difference]: Start difference. First operand 1338 states and 3613 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:22,584 INFO L93 Difference]: Finished difference Result 1338 states and 3613 transitions. [2024-11-14 04:07:22,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:07:22,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-14 04:07:22,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:22,594 INFO L225 Difference]: With dead ends: 1338 [2024-11-14 04:07:22,594 INFO L226 Difference]: Without dead ends: 1334 [2024-11-14 04:07:22,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:07:22,596 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:22,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 44 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:07:22,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2024-11-14 04:07:22,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1334. [2024-11-14 04:07:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1330 states have (on average 2.7112781954887217) internal successors, (3606), 1333 states have internal predecessors, (3606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 3606 transitions. [2024-11-14 04:07:22,638 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 3606 transitions. Word has length 26 [2024-11-14 04:07:22,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:22,638 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 3606 transitions. [2024-11-14 04:07:22,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:22,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 3606 transitions. [2024-11-14 04:07:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 04:07:22,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:22,644 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:22,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 04:07:22,644 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:22,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:22,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1516172728, now seen corresponding path program 1 times [2024-11-14 04:07:22,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:22,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732052287] [2024-11-14 04:07:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:22,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 04:07:23,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:23,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732052287] [2024-11-14 04:07:23,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732052287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:23,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:23,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:07:23,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691108618] [2024-11-14 04:07:23,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:23,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:07:23,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:23,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:07:23,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:07:23,101 INFO L87 Difference]: Start difference. First operand 1334 states and 3606 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:23,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:23,281 INFO L93 Difference]: Finished difference Result 1603 states and 4177 transitions. [2024-11-14 04:07:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:07:23,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 42 [2024-11-14 04:07:23,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:23,293 INFO L225 Difference]: With dead ends: 1603 [2024-11-14 04:07:23,294 INFO L226 Difference]: Without dead ends: 1589 [2024-11-14 04:07:23,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:07:23,295 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:23,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 72 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:07:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2024-11-14 04:07:23,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1452. [2024-11-14 04:07:23,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1448 states have (on average 2.6781767955801103) internal successors, (3878), 1451 states have internal predecessors, (3878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:23,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 3878 transitions. [2024-11-14 04:07:23,344 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 3878 transitions. Word has length 42 [2024-11-14 04:07:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:23,345 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 3878 transitions. [2024-11-14 04:07:23,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 3878 transitions. [2024-11-14 04:07:23,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 04:07:23,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:23,349 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:23,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 04:07:23,349 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:23,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:23,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1542864508, now seen corresponding path program 2 times [2024-11-14 04:07:23,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:23,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509705362] [2024-11-14 04:07:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:23,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:23,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:23,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509705362] [2024-11-14 04:07:23,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509705362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:23,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:07:23,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:07:23,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417509437] [2024-11-14 04:07:23,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:23,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:07:23,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:23,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:07:23,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:07:23,637 INFO L87 Difference]: Start difference. First operand 1452 states and 3878 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:23,878 INFO L93 Difference]: Finished difference Result 1452 states and 3878 transitions. [2024-11-14 04:07:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:07:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 42 [2024-11-14 04:07:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:23,889 INFO L225 Difference]: With dead ends: 1452 [2024-11-14 04:07:23,889 INFO L226 Difference]: Without dead ends: 1438 [2024-11-14 04:07:23,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:07:23,890 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 66 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:23,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 112 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:07:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-14 04:07:23,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1197. [2024-11-14 04:07:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 1195 states have (on average 2.781589958158996) internal successors, (3324), 1196 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 3324 transitions. [2024-11-14 04:07:23,931 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 3324 transitions. Word has length 42 [2024-11-14 04:07:23,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:23,932 INFO L471 AbstractCegarLoop]: Abstraction has 1197 states and 3324 transitions. [2024-11-14 04:07:23,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:23,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 3324 transitions. [2024-11-14 04:07:23,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 04:07:23,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:23,952 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:23,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:07:23,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:23,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:23,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2133801856, now seen corresponding path program 1 times [2024-11-14 04:07:23,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:23,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486238853] [2024-11-14 04:07:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:23,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:24,524 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:24,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:24,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486238853] [2024-11-14 04:07:24,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486238853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:07:24,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681094163] [2024-11-14 04:07:24,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:24,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:07:24,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:24,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:07:24,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:07:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:24,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:07:24,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:24,846 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-14 04:07:24,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 27 [2024-11-14 04:07:24,889 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-14 04:07:24,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 29 [2024-11-14 04:07:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:25,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:07:25,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681094163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:07:25,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:07:25,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-14 04:07:25,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008159131] [2024-11-14 04:07:25,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:07:25,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:07:25,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:25,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:07:25,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:07:25,290 INFO L87 Difference]: Start difference. First operand 1197 states and 3324 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:25,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:25,750 INFO L93 Difference]: Finished difference Result 1924 states and 5308 transitions. [2024-11-14 04:07:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:07:25,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 46 [2024-11-14 04:07:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:25,761 INFO L225 Difference]: With dead ends: 1924 [2024-11-14 04:07:25,761 INFO L226 Difference]: Without dead ends: 1459 [2024-11-14 04:07:25,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:07:25,763 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 130 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:25,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 162 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:07:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-11-14 04:07:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1459. [2024-11-14 04:07:25,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1457 states have (on average 2.8490048043925875) internal successors, (4151), 1458 states have internal predecessors, (4151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 4151 transitions. [2024-11-14 04:07:25,810 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 4151 transitions. Word has length 46 [2024-11-14 04:07:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:25,811 INFO L471 AbstractCegarLoop]: Abstraction has 1459 states and 4151 transitions. [2024-11-14 04:07:25,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 4151 transitions. [2024-11-14 04:07:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 04:07:25,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:25,815 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:25,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:07:26,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 04:07:26,020 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-14 04:07:26,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash 531756220, now seen corresponding path program 2 times [2024-11-14 04:07:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:26,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051838411] [2024-11-14 04:07:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:26,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:07:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:26,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:26,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051838411] [2024-11-14 04:07:26,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051838411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:07:26,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384816934] [2024-11-14 04:07:26,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:07:26,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:07:26,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:26,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:07:26,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:07:26,702 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 04:07:26,702 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:07:26,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:07:26,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:26,789 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-14 04:07:26,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 27 [2024-11-14 04:07:26,826 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-14 04:07:26,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 29 [2024-11-14 04:07:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:27,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:07:27,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:07:27,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384816934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:07:27,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1107075421] [2024-11-14 04:07:27,833 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:311) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:286) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1715) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:168) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 04:07:27,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:07:27,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2024-11-14 04:07:27,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608197516] [2024-11-14 04:07:27,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:07:27,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:07:27,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:27,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:07:27,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:07:27,838 INFO L87 Difference]: Start difference. First operand 1459 states and 4151 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:29,154 INFO L93 Difference]: Finished difference Result 1742 states and 4772 transitions. [2024-11-14 04:07:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:07:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-14 04:07:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:29,158 INFO L225 Difference]: With dead ends: 1742 [2024-11-14 04:07:29,158 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:07:29,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:07:29,163 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 231 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:29,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 436 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:07:29,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:07:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:07:29,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:07:29,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2024-11-14 04:07:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:29,167 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:07:29,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:07:29,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:07:29,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:07:29,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (18 of 19 remaining) [2024-11-14 04:07:29,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (17 of 19 remaining) [2024-11-14 04:07:29,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (16 of 19 remaining) [2024-11-14 04:07:29,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (15 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK (10 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 19 remaining) [2024-11-14 04:07:29,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 19 remaining) [2024-11-14 04:07:29,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 19 remaining) [2024-11-14 04:07:29,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 19 remaining) [2024-11-14 04:07:29,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 19 remaining) [2024-11-14 04:07:29,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 19 remaining) [2024-11-14 04:07:29,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:07:29,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 04:07:29,377 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:07:29,382 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 04:07:29,383 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:07:29,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:07:29 BasicIcfg [2024-11-14 04:07:29,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:07:29,386 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:07:29,386 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:07:29,387 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:07:29,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:07:16" (3/4) ... [2024-11-14 04:07:29,389 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:07:29,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2024-11-14 04:07:29,392 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2024-11-14 04:07:29,397 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2024-11-14 04:07:29,397 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-14 04:07:29,398 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 04:07:29,398 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:07:29,492 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:07:29,493 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:07:29,493 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:07:29,494 INFO L158 Benchmark]: Toolchain (without parser) took 15310.41ms. Allocated memory was 142.6MB in the beginning and 494.9MB in the end (delta: 352.3MB). Free memory was 114.4MB in the beginning and 446.6MB in the end (delta: -332.2MB). Peak memory consumption was 303.5MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,494 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:29,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1240.61ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 60.8MB in the end (delta: 53.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.43ms. Allocated memory is still 142.6MB. Free memory was 60.8MB in the beginning and 110.0MB in the end (delta: -49.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,495 INFO L158 Benchmark]: Boogie Preprocessor took 37.52ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 107.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:07:29,495 INFO L158 Benchmark]: RCFGBuilder took 969.06ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 62.8MB in the end (delta: 44.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,495 INFO L158 Benchmark]: TraceAbstraction took 12879.41ms. Allocated memory was 142.6MB in the beginning and 494.9MB in the end (delta: 352.3MB). Free memory was 62.2MB in the beginning and 168.3MB in the end (delta: -106.2MB). Peak memory consumption was 238.9MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,496 INFO L158 Benchmark]: Witness Printer took 106.33ms. Allocated memory is still 494.9MB. Free memory was 168.3MB in the beginning and 446.6MB in the end (delta: -278.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:07:29,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 142.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1240.61ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 60.8MB in the end (delta: 53.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.43ms. Allocated memory is still 142.6MB. Free memory was 60.8MB in the beginning and 110.0MB in the end (delta: -49.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.52ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 107.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 969.06ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 62.8MB in the end (delta: 44.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12879.41ms. Allocated memory was 142.6MB in the beginning and 494.9MB in the end (delta: 352.3MB). Free memory was 62.2MB in the beginning and 168.3MB in the end (delta: -106.2MB). Peak memory consumption was 238.9MB. Max. memory is 16.1GB. * Witness Printer took 106.33ms. Allocated memory is still 494.9MB. Free memory was 168.3MB in the beginning and 446.6MB in the end (delta: -278.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1795]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 133 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 12.7s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 927 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 927 mSDsluCounter, 1515 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 922 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2934 IncrementalHoareTripleChecker+Invalid, 2962 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 593 mSDtfsCounter, 2934 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 141 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3627occurred in iteration=0, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 2034 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 459 NumberOfCodeBlocks, 445 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 487 ConstructedInterpolants, 61 QuantifiedInterpolants, 3606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 499 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 41/65 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 - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 04:07:29,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ab82c1-ed49-414c-b6f0-c49764472bc1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE