./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix022_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix022_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:28:58,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:28:58,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:28:58,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:28:58,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:28:58,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:28:58,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:28:58,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:28:58,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:28:58,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:28:58,679 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:28:58,680 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:28:58,681 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:28:58,681 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:28:58,682 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:28:58,682 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:28:58,683 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:28:58,683 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:28:58,684 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:28:58,684 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:28:58,685 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:28:58,686 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:28:58,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:28:58,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:28:58,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:28:58,688 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:28:58,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:28:58,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:28:58,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:28:58,690 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:28:58,691 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:28:58,691 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:28:58,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:28:58,692 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:28:58,693 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:28:58,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:28:58,694 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:28:58,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:28:58,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:28:58,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:28:58,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:28:58,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:28:58,696 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:28:58,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:28:58,696 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:28:58,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:28:58,697 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 [2023-11-06 20:28:58,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:28:58,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:28:58,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:28:58,995 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:28:58,997 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:28:58,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/pthread-wmm/mix022_tso.i [2023-11-06 20:29:02,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:29:02,468 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:29:02,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/sv-benchmarks/c/pthread-wmm/mix022_tso.i [2023-11-06 20:29:02,495 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data/dee7484bb/2633a0f8e8ef4b6288ded43d9f9b93e4/FLAG5b7be44f0 [2023-11-06 20:29:02,516 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data/dee7484bb/2633a0f8e8ef4b6288ded43d9f9b93e4 [2023-11-06 20:29:02,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:29:02,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:29:02,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:02,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:29:02,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:29:02,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:02" (1/1) ... [2023-11-06 20:29:02,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72444ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:02, skipping insertion in model container [2023-11-06 20:29:02,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:02" (1/1) ... [2023-11-06 20:29:02,593 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:29:02,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:03,009 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:29:03,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:03,197 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:29:03,197 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:29:03,205 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:29:03,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03 WrapperNode [2023-11-06 20:29:03,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:03,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:03,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:29:03,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:29:03,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,296 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 155 [2023-11-06 20:29:03,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:03,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:29:03,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:29:03,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:29:03,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:29:03,354 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:29:03,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:29:03,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:29:03,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (1/1) ... [2023-11-06 20:29:03,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:03,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:29:03,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:29:03,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:29:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 20:29:03,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:29:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:29:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:29:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:29:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 20:29:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 20:29:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 20:29:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 20:29:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 20:29:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:29:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:29:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:29:03,461 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:29:03,646 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:29:03,648 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:29:04,103 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:29:04,352 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:29:04,354 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:29:04,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:04 BoogieIcfgContainer [2023-11-06 20:29:04,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:29:04,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:29:04,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:29:04,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:29:04,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:29:02" (1/3) ... [2023-11-06 20:29:04,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20cc5700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:04, skipping insertion in model container [2023-11-06 20:29:04,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:03" (2/3) ... [2023-11-06 20:29:04,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20cc5700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:04, skipping insertion in model container [2023-11-06 20:29:04,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:04" (3/3) ... [2023-11-06 20:29:04,370 INFO L112 eAbstractionObserver]: Analyzing ICFG mix022_tso.i [2023-11-06 20:29:04,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:29:04,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-06 20:29:04,386 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:29:04,444 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 20:29:04,494 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:29:04,520 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 105 transitions, 218 flow [2023-11-06 20:29:04,525 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 105 transitions, 218 flow [2023-11-06 20:29:04,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 105 transitions, 218 flow [2023-11-06 20:29:04,599 INFO L124 PetriNetUnfolderBase]: 3/103 cut-off events. [2023-11-06 20:29:04,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 20:29:04,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 103 events. 3/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-11-06 20:29:04,608 INFO L119 LiptonReduction]: Number of co-enabled transitions 1500 [2023-11-06 20:29:11,086 INFO L134 LiptonReduction]: Checked pairs total: 4049 [2023-11-06 20:29:11,086 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-11-06 20:29:11,098 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 27 transitions, 62 flow [2023-11-06 20:29:11,168 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 244 states, 235 states have (on average 2.6425531914893616) internal successors, (621), 243 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:11,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:29:11,201 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@213d3ae6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:29:11,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-06 20:29:11,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 235 states have (on average 2.6425531914893616) internal successors, (621), 243 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:11,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-06 20:29:11,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:11,215 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-06 20:29:11,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:11,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:11,224 INFO L85 PathProgramCache]: Analyzing trace with hash 525, now seen corresponding path program 1 times [2023-11-06 20:29:11,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:11,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077005023] [2023-11-06 20:29:11,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:11,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:11,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:11,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077005023] [2023-11-06 20:29:11,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077005023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:11,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:11,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 20:29:11,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109491954] [2023-11-06 20:29:11,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:11,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 20:29:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:11,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 20:29:11,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 20:29:11,403 INFO L87 Difference]: Start difference. First operand has 244 states, 235 states have (on average 2.6425531914893616) internal successors, (621), 243 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:11,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:11,495 INFO L93 Difference]: Finished difference Result 232 states and 566 transitions. [2023-11-06 20:29:11,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 20:29:11,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-06 20:29:11,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:11,513 INFO L225 Difference]: With dead ends: 232 [2023-11-06 20:29:11,514 INFO L226 Difference]: Without dead ends: 232 [2023-11-06 20:29:11,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 20:29:11,518 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:11,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:11,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-06 20:29:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2023-11-06 20:29:11,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 2.4933920704845813) internal successors, (566), 231 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:11,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 566 transitions. [2023-11-06 20:29:11,586 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 566 transitions. Word has length 1 [2023-11-06 20:29:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:11,587 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 566 transitions. [2023-11-06 20:29:11,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 566 transitions. [2023-11-06 20:29:11,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 20:29:11,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:11,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 20:29:11,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 20:29:11,595 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:11,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:11,596 INFO L85 PathProgramCache]: Analyzing trace with hash 496008583, now seen corresponding path program 1 times [2023-11-06 20:29:11,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:11,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109335411] [2023-11-06 20:29:11,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:11,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:11,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:11,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109335411] [2023-11-06 20:29:11,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109335411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:11,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:11,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 20:29:11,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381148923] [2023-11-06 20:29:11,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:11,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:29:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:11,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:29:11,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:11,949 INFO L87 Difference]: Start difference. First operand 232 states and 566 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:12,033 INFO L93 Difference]: Finished difference Result 197 states and 473 transitions. [2023-11-06 20:29:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:29:12,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-06 20:29:12,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:12,039 INFO L225 Difference]: With dead ends: 197 [2023-11-06 20:29:12,039 INFO L226 Difference]: Without dead ends: 192 [2023-11-06 20:29:12,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:12,041 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:12,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:12,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-06 20:29:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-06 20:29:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.442105263157895) internal successors, (464), 191 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 464 transitions. [2023-11-06 20:29:12,058 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 464 transitions. Word has length 5 [2023-11-06 20:29:12,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:12,059 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 464 transitions. [2023-11-06 20:29:12,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,059 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 464 transitions. [2023-11-06 20:29:12,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 20:29:12,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:12,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:12,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 20:29:12,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:12,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:12,062 INFO L85 PathProgramCache]: Analyzing trace with hash -77072725, now seen corresponding path program 1 times [2023-11-06 20:29:12,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:12,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680690661] [2023-11-06 20:29:12,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:12,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:12,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:12,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680690661] [2023-11-06 20:29:12,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680690661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:12,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:12,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:29:12,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176741083] [2023-11-06 20:29:12,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:12,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 20:29:12,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:12,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 20:29:12,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 20:29:12,779 INFO L87 Difference]: Start difference. First operand 192 states and 464 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:12,920 INFO L93 Difference]: Finished difference Result 222 states and 518 transitions. [2023-11-06 20:29:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 20:29:12,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-06 20:29:12,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:12,924 INFO L225 Difference]: With dead ends: 222 [2023-11-06 20:29:12,924 INFO L226 Difference]: Without dead ends: 222 [2023-11-06 20:29:12,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 20:29:12,926 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:12,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:12,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-06 20:29:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2023-11-06 20:29:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 2.422222222222222) internal successors, (436), 181 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 436 transitions. [2023-11-06 20:29:12,943 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 436 transitions. Word has length 7 [2023-11-06 20:29:12,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:12,943 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 436 transitions. [2023-11-06 20:29:12,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 436 transitions. [2023-11-06 20:29:12,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 20:29:12,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:12,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:12,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 20:29:12,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:12,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:12,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1905713508, now seen corresponding path program 1 times [2023-11-06 20:29:12,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:12,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165613679] [2023-11-06 20:29:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:12,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:13,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:13,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165613679] [2023-11-06 20:29:13,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165613679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:13,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:13,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 20:29:13,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160669186] [2023-11-06 20:29:13,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:13,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:29:13,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:13,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:29:13,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:13,365 INFO L87 Difference]: Start difference. First operand 182 states and 436 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:13,498 INFO L93 Difference]: Finished difference Result 152 states and 357 transitions. [2023-11-06 20:29:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 20:29:13,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2023-11-06 20:29:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:13,500 INFO L225 Difference]: With dead ends: 152 [2023-11-06 20:29:13,500 INFO L226 Difference]: Without dead ends: 122 [2023-11-06 20:29:13,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:13,502 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:13,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 15 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:13,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-06 20:29:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2023-11-06 20:29:13,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 2.2975206611570247) internal successors, (278), 121 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2023-11-06 20:29:13,518 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 8 [2023-11-06 20:29:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:13,518 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2023-11-06 20:29:13,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:13,519 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2023-11-06 20:29:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 20:29:13,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:13,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:13,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 20:29:13,521 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:13,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1052478533, now seen corresponding path program 1 times [2023-11-06 20:29:13,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:13,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470132368] [2023-11-06 20:29:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:13,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:14,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:14,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470132368] [2023-11-06 20:29:14,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470132368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:14,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:14,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 20:29:14,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035865025] [2023-11-06 20:29:14,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:14,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:29:14,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:14,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:29:14,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:14,599 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:14,747 INFO L93 Difference]: Finished difference Result 126 states and 285 transitions. [2023-11-06 20:29:14,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 20:29:14,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-06 20:29:14,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:14,749 INFO L225 Difference]: With dead ends: 126 [2023-11-06 20:29:14,749 INFO L226 Difference]: Without dead ends: 126 [2023-11-06 20:29:14,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 20:29:14,751 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:14,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-06 20:29:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2023-11-06 20:29:14,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 2.2704918032786887) internal successors, (277), 122 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:14,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 277 transitions. [2023-11-06 20:29:14,771 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 277 transitions. Word has length 9 [2023-11-06 20:29:14,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:14,771 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 277 transitions. [2023-11-06 20:29:14,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:14,773 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 277 transitions. [2023-11-06 20:29:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 20:29:14,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:14,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:14,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 20:29:14,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:14,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1053833543, now seen corresponding path program 2 times [2023-11-06 20:29:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:14,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031201454] [2023-11-06 20:29:14,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:14,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:15,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:15,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031201454] [2023-11-06 20:29:15,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031201454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:15,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:15,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 20:29:15,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336557319] [2023-11-06 20:29:15,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:15,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 20:29:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:15,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 20:29:15,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 20:29:15,029 INFO L87 Difference]: Start difference. First operand 123 states and 277 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:15,148 INFO L93 Difference]: Finished difference Result 103 states and 196 transitions. [2023-11-06 20:29:15,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 20:29:15,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-06 20:29:15,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:15,149 INFO L225 Difference]: With dead ends: 103 [2023-11-06 20:29:15,150 INFO L226 Difference]: Without dead ends: 70 [2023-11-06 20:29:15,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:15,151 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:15,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-06 20:29:15,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-06 20:29:15,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 122 transitions. [2023-11-06 20:29:15,159 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 122 transitions. Word has length 9 [2023-11-06 20:29:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:15,159 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 122 transitions. [2023-11-06 20:29:15,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,160 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 122 transitions. [2023-11-06 20:29:15,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 20:29:15,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:15,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:15,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 20:29:15,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:15,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:15,162 INFO L85 PathProgramCache]: Analyzing trace with hash 799380189, now seen corresponding path program 1 times [2023-11-06 20:29:15,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:15,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720362077] [2023-11-06 20:29:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:15,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:15,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720362077] [2023-11-06 20:29:15,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720362077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:15,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:15,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 20:29:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242688117] [2023-11-06 20:29:15,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:15,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:29:15,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:15,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:29:15,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:15,443 INFO L87 Difference]: Start difference. First operand 70 states and 122 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:15,543 INFO L93 Difference]: Finished difference Result 55 states and 90 transitions. [2023-11-06 20:29:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 20:29:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 20:29:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:15,544 INFO L225 Difference]: With dead ends: 55 [2023-11-06 20:29:15,544 INFO L226 Difference]: Without dead ends: 45 [2023-11-06 20:29:15,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 20:29:15,545 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:15,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:15,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-06 20:29:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-06 20:29:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 44 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 72 transitions. [2023-11-06 20:29:15,548 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 72 transitions. Word has length 12 [2023-11-06 20:29:15,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:15,548 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 72 transitions. [2023-11-06 20:29:15,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2023-11-06 20:29:15,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 20:29:15,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:15,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:15,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 20:29:15,550 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:15,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:15,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2020552073, now seen corresponding path program 1 times [2023-11-06 20:29:15,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:15,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055803289] [2023-11-06 20:29:15,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:15,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:15,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:15,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:15,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055803289] [2023-11-06 20:29:15,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055803289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:15,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:15,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 20:29:15,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071180510] [2023-11-06 20:29:15,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:15,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 20:29:15,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:15,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 20:29:15,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 20:29:15,858 INFO L87 Difference]: Start difference. First operand 45 states and 72 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:15,955 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2023-11-06 20:29:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 20:29:15,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-06 20:29:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:15,956 INFO L225 Difference]: With dead ends: 59 [2023-11-06 20:29:15,957 INFO L226 Difference]: Without dead ends: 25 [2023-11-06 20:29:15,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:15,958 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:15,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 20:29:15,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-06 20:29:15,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-06 20:29:15,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-11-06 20:29:15,960 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2023-11-06 20:29:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:15,960 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-11-06 20:29:15,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-11-06 20:29:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-06 20:29:15,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:15,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:15,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 20:29:15,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2023-11-06 20:29:15,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2011991113, now seen corresponding path program 2 times [2023-11-06 20:29:15,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:15,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198955478] [2023-11-06 20:29:15,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:15,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 20:29:16,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 20:29:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 20:29:16,176 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-06 20:29:16,176 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 20:29:16,178 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2023-11-06 20:29:16,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2023-11-06 20:29:16,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2023-11-06 20:29:16,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2023-11-06 20:29:16,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2023-11-06 20:29:16,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2023-11-06 20:29:16,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2023-11-06 20:29:16,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2023-11-06 20:29:16,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2023-11-06 20:29:16,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2023-11-06 20:29:16,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 20:29:16,184 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-11-06 20:29:16,190 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 20:29:16,190 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 20:29:16,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:29:16 BasicIcfg [2023-11-06 20:29:16,277 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 20:29:16,277 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 20:29:16,277 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 20:29:16,277 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 20:29:16,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:04" (3/4) ... [2023-11-06 20:29:16,280 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 20:29:16,281 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 20:29:16,282 INFO L158 Benchmark]: Toolchain (without parser) took 13754.79ms. Allocated memory was 148.9MB in the beginning and 287.3MB in the end (delta: 138.4MB). Free memory was 100.2MB in the beginning and 217.0MB in the end (delta: -116.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2023-11-06 20:29:16,282 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 148.9MB. Free memory was 118.0MB in the beginning and 117.9MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:29:16,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.07ms. Allocated memory is still 148.9MB. Free memory was 100.2MB in the beginning and 76.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 20:29:16,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.82ms. Allocated memory is still 148.9MB. Free memory was 76.2MB in the beginning and 73.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 20:29:16,285 INFO L158 Benchmark]: Boogie Preprocessor took 55.12ms. Allocated memory is still 148.9MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 20:29:16,285 INFO L158 Benchmark]: RCFGBuilder took 1004.19ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 71.5MB in the beginning and 133.2MB in the end (delta: -61.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-06 20:29:16,286 INFO L158 Benchmark]: TraceAbstraction took 11915.52ms. Allocated memory was 199.2MB in the beginning and 287.3MB in the end (delta: 88.1MB). Free memory was 132.2MB in the beginning and 217.0MB in the end (delta: -84.9MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-11-06 20:29:16,286 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 287.3MB. Free memory is still 217.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:29:16,290 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 148.9MB. Free memory was 118.0MB in the beginning and 117.9MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 674.07ms. Allocated memory is still 148.9MB. Free memory was 100.2MB in the beginning and 76.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.82ms. Allocated memory is still 148.9MB. Free memory was 76.2MB in the beginning and 73.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.12ms. Allocated memory is still 148.9MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1004.19ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 71.5MB in the beginning and 133.2MB in the end (delta: -61.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11915.52ms. Allocated memory was 199.2MB in the beginning and 287.3MB in the end (delta: 88.1MB). Free memory was 132.2MB in the beginning and 217.0MB in the end (delta: -84.9MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 287.3MB. Free memory is still 217.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 109 PlacesBefore, 33 PlacesAfterwards, 105 TransitionsBefore, 27 TransitionsAfterwards, 1500 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 4049 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2253, independent: 2098, independent conditional: 0, independent unconditional: 2098, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1223, independent: 1165, independent conditional: 0, independent unconditional: 1165, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1223, independent: 1143, independent conditional: 0, independent unconditional: 1143, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 22, independent conditional: 0, independent unconditional: 22, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 818, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 785, dependent conditional: 0, dependent unconditional: 785, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2253, independent: 933, independent conditional: 0, independent unconditional: 933, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 1223, unknown conditional: 0, unknown unconditional: 1223] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t597; [L811] FCALL, FORK 0 pthread_create(&t597, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t597, ((void *)0), P0, ((void *)0))=-2, t597={5:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L812] 0 pthread_t t598; [L813] FCALL, FORK 0 pthread_create(&t598, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t598, ((void *)0), P1, ((void *)0))=-1, t597={5:0}, t598={3:0}, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L758] 2 x$w_buff1 = x$w_buff0 [L759] 2 x$w_buff0 = 2 [L760] 2 x$w_buff1_used = x$w_buff0_used [L761] 2 x$w_buff0_used = (_Bool)1 [L762] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L762] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L763] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L764] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L765] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L766] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 x$flush_delayed = weak$$choice2 [L772] 2 x$mem_tmp = x [L773] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L774] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L775] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L776] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L777] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L779] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EAX = x [L781] 2 x = x$flush_delayed ? x$mem_tmp : x [L782] 2 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L785] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L738] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=1] [L744] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L745] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L746] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L747] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L748] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=1] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L788] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L815] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L817] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L817] RET 0 assume_abort_if_not(main$tmp_guard0) [L819] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L820] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L821] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L822] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L823] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t597={5:0}, t598={3:0}, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] [L826] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L827] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L828] 0 x$flush_delayed = weak$$choice2 [L829] 0 x$mem_tmp = x [L830] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L831] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L832] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L833] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L834] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L835] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L836] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L837] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L838] 0 x = x$flush_delayed ? x$mem_tmp : x [L839] 0 x$flush_delayed = (_Bool)0 [L841] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) [L17] 0 __assert_fail ("0", "mix022_tso.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\read(__PRETTY_FUNCTION__)={50:49}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 813]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 123 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 391 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 29 mSDtfsCounter, 391 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 43 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 20:29:16,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix022_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:29:19,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:29:19,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:29:19,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:29:19,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:29:19,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:29:19,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:29:19,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:29:19,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:29:19,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:29:19,343 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:29:19,343 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:29:19,344 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:29:19,346 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:29:19,346 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:29:19,347 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:29:19,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:29:19,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:29:19,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:29:19,350 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:29:19,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:29:19,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:29:19,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:29:19,352 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:29:19,352 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:29:19,353 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:29:19,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:29:19,354 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:29:19,354 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:29:19,355 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:29:19,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:29:19,357 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:29:19,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:29:19,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:29:19,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:29:19,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:29:19,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:19,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:29:19,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:29:19,361 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:29:19,361 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:29:19,361 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:29:19,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:29:19,362 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9c6cc212d45f96c9e6587b0ee0d7644c3fabb2c198a03ef385d6df2e7b46689 [2023-11-06 20:29:19,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:29:19,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:29:19,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:29:19,829 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:29:19,830 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:29:19,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/pthread-wmm/mix022_tso.i [2023-11-06 20:29:23,011 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:29:23,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:29:23,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/sv-benchmarks/c/pthread-wmm/mix022_tso.i [2023-11-06 20:29:23,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data/0cffa44ef/312158ec2c58425e90e9a4fc8bcbd125/FLAGf8cf09906 [2023-11-06 20:29:23,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/data/0cffa44ef/312158ec2c58425e90e9a4fc8bcbd125 [2023-11-06 20:29:23,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:29:23,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:29:23,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:23,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:29:23,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:29:23,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:23" (1/1) ... [2023-11-06 20:29:23,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dad7e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:23, skipping insertion in model container [2023-11-06 20:29:23,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:23" (1/1) ... [2023-11-06 20:29:23,512 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:29:24,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:24,087 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:29:24,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:24,244 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:29:24,244 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:29:24,253 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:29:24,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24 WrapperNode [2023-11-06 20:29:24,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:24,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:24,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:29:24,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:29:24,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,363 INFO L138 Inliner]: procedures = 178, calls = 44, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 156 [2023-11-06 20:29:24,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:24,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:29:24,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:29:24,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:29:24,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:29:24,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:29:24,470 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:29:24,470 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:29:24,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (1/1) ... [2023-11-06 20:29:24,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:24,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:29:24,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:29:24,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab8948f-ecea-4e6d-b5a6-93c710585602/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:29:24,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:29:24,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:29:24,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:29:24,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:29:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:29:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:29:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 20:29:24,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 20:29:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 20:29:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 20:29:24,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:29:24,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:29:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:29:24,581 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:29:24,811 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:29:24,814 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:29:25,332 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:29:25,534 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:29:25,534 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:29:25,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:25 BoogieIcfgContainer [2023-11-06 20:29:25,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:29:25,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:29:25,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:29:25,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:29:25,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:29:23" (1/3) ... [2023-11-06 20:29:25,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c40820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:25, skipping insertion in model container [2023-11-06 20:29:25,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:24" (2/3) ... [2023-11-06 20:29:25,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c40820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:25, skipping insertion in model container [2023-11-06 20:29:25,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:25" (3/3) ... [2023-11-06 20:29:25,547 INFO L112 eAbstractionObserver]: Analyzing ICFG mix022_tso.i [2023-11-06 20:29:25,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:29:25,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-06 20:29:25,568 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:29:25,622 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 20:29:25,658 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:29:25,674 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 106 transitions, 220 flow [2023-11-06 20:29:25,677 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 106 transitions, 220 flow [2023-11-06 20:29:25,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2023-11-06 20:29:25,730 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-11-06 20:29:25,730 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 20:29:25,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-11-06 20:29:25,738 INFO L119 LiptonReduction]: Number of co-enabled transitions 1500