./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/reorder_5-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:38:37,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:38:37,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-02 12:38:37,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:38:37,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:38:37,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:38:37,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:38:37,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:38:37,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:38:37,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:38:37,238 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:38:37,239 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:38:37,239 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:38:37,239 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:38:37,240 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:38:37,240 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:38:37,241 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:38:37,241 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:38:37,241 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:38:37,242 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:38:37,242 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:38:37,243 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:38:37,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:38:37,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:38:37,244 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:38:37,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:38:37,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:38:37,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:38:37,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:38:37,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:38:37,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:38:37,247 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-02 12:38:37,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:38:37,247 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:38:37,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:38:37,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:38:37,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:38:37,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:38:37,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:38:37,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:37,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:38:37,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:38:37,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:38:37,250 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:38:37,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:38:37,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:38:37,251 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:38:37,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:38:37,252 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_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 [2024-11-02 12:38:37,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:38:37,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:38:37,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:38:37,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:38:37,573 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:38:37,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread/reorder_5-race.i Unable to find full path for "g++" [2024-11-02 12:38:39,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:38:40,220 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:38:40,221 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/sv-benchmarks/c/pthread/reorder_5-race.i [2024-11-02 12:38:40,249 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/data/d44ce7d3c/f2c79e36395a462dbef0c2671e3618b4/FLAG7191c71f6 [2024-11-02 12:38:40,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/data/d44ce7d3c/f2c79e36395a462dbef0c2671e3618b4 [2024-11-02 12:38:40,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:38:40,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:38:40,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:40,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:38:40,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:38:40,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:40" (1/1) ... [2024-11-02 12:38:40,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5932c3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:40, skipping insertion in model container [2024-11-02 12:38:40,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:40" (1/1) ... [2024-11-02 12:38:40,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:38:41,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:41,283 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:38:41,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:41,456 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:38:41,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41 WrapperNode [2024-11-02 12:38:41,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:41,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:41,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:38:41,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:38:41,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,534 INFO L138 Inliner]: procedures = 369, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2024-11-02 12:38:41,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:41,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:38:41,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:38:41,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:38:41,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:38:41,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:38:41,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:38:41,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:38:41,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:38:41,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:38:41,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_468ff51a-7713-436a-8bda-3cd45c0d8b05/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:38:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:38:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:38:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:38:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-02 12:38:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-02 12:38:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:38:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:38:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-02 12:38:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-02 12:38:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:38:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:38:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:38:41,651 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:38:41,809 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:38:41,815 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:38:42,378 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:38:42,378 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:38:42,408 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:38:42,411 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-02 12:38:42,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:42 BoogieIcfgContainer [2024-11-02 12:38:42,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:38:42,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:38:42,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:38:42,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:38:42,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:38:40" (1/3) ... [2024-11-02 12:38:42,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9236e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:42, skipping insertion in model container [2024-11-02 12:38:42,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (2/3) ... [2024-11-02 12:38:42,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9236e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:42, skipping insertion in model container [2024-11-02 12:38:42,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:42" (3/3) ... [2024-11-02 12:38:42,428 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5-race.i [2024-11-02 12:38:42,451 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:38:42,452 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-02 12:38:42,452 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:38:42,571 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-02 12:38:42,633 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 261 places, 276 transitions, 572 flow [2024-11-02 12:38:45,235 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48693 states, 48371 states have (on average 2.9642554423104754) internal successors, (143384), 48692 states have internal predecessors, (143384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:45,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:38:45,293 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a8f3e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:38:45,293 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-02 12:38:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 48693 states, 48371 states have (on average 2.9642554423104754) internal successors, (143384), 48692 states have internal predecessors, (143384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:45,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-02 12:38:45,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:45,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:45,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-02 12:38:45,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:45,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1239072798, now seen corresponding path program 1 times [2024-11-02 12:38:45,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:45,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104844204] [2024-11-02 12:38:45,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:45,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:45,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:45,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:45,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104844204] [2024-11-02 12:38:45,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104844204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:45,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:45,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:38:45,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647319299] [2024-11-02 12:38:45,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:45,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:45,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:45,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:45,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:45,997 INFO L87 Difference]: Start difference. First operand has 48693 states, 48371 states have (on average 2.9642554423104754) internal successors, (143384), 48692 states have internal predecessors, (143384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:48,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:48,174 INFO L93 Difference]: Finished difference Result 95454 states and 281930 transitions. [2024-11-02 12:38:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:48,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-02 12:38:48,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:48,867 INFO L225 Difference]: With dead ends: 95454 [2024-11-02 12:38:48,868 INFO L226 Difference]: Without dead ends: 46222 [2024-11-02 12:38:49,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:49,098 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 204 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:49,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 299 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46222 states. [2024-11-02 12:38:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46222 to 46222. [2024-11-02 12:38:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46222 states, 45863 states have (on average 2.8869022959684276) internal successors, (132402), 46221 states have internal predecessors, (132402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46222 states to 46222 states and 132402 transitions. [2024-11-02 12:38:51,761 INFO L78 Accepts]: Start accepts. Automaton has 46222 states and 132402 transitions. Word has length 20 [2024-11-02 12:38:51,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:51,761 INFO L471 AbstractCegarLoop]: Abstraction has 46222 states and 132402 transitions. [2024-11-02 12:38:51,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 46222 states and 132402 transitions. [2024-11-02 12:38:51,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:38:51,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:51,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:51,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:38:51,763 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-02 12:38:51,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:51,764 INFO L85 PathProgramCache]: Analyzing trace with hash 243244496, now seen corresponding path program 1 times [2024-11-02 12:38:51,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:51,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406912731] [2024-11-02 12:38:51,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:51,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:51,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:51,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406912731] [2024-11-02 12:38:51,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406912731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:51,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:51,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:38:51,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350645774] [2024-11-02 12:38:51,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:51,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:51,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:51,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:51,881 INFO L87 Difference]: Start difference. First operand 46222 states and 132402 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:53,441 INFO L93 Difference]: Finished difference Result 92395 states and 264754 transitions. [2024-11-02 12:38:53,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:53,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2024-11-02 12:38:53,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:54,196 INFO L225 Difference]: With dead ends: 92395 [2024-11-02 12:38:54,197 INFO L226 Difference]: Without dead ends: 92394 [2024-11-02 12:38:54,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:54,229 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 229 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:54,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 669 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:38:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92394 states. [2024-11-02 12:38:56,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92394 to 46221. [2024-11-02 12:38:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46221 states, 45863 states have (on average 2.8868804918997886) internal successors, (132401), 46220 states have internal predecessors, (132401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46221 states to 46221 states and 132401 transitions. [2024-11-02 12:38:56,971 INFO L78 Accepts]: Start accepts. Automaton has 46221 states and 132401 transitions. Word has length 21 [2024-11-02 12:38:56,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:56,972 INFO L471 AbstractCegarLoop]: Abstraction has 46221 states and 132401 transitions. [2024-11-02 12:38:56,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:56,972 INFO L276 IsEmpty]: Start isEmpty. Operand 46221 states and 132401 transitions. [2024-11-02 12:38:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-02 12:38:56,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:56,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:56,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:38:56,973 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-02 12:38:56,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:56,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1049377832, now seen corresponding path program 1 times [2024-11-02 12:38:56,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:56,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341787997] [2024-11-02 12:38:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:56,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:57,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:57,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341787997] [2024-11-02 12:38:57,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341787997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:57,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:57,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:38:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10496719] [2024-11-02 12:38:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:57,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:57,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:57,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:57,024 INFO L87 Difference]: Start difference. First operand 46221 states and 132401 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:57,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:57,980 INFO L93 Difference]: Finished difference Result 46221 states and 132401 transitions. [2024-11-02 12:38:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:57,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-02 12:38:57,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:58,372 INFO L225 Difference]: With dead ends: 46221 [2024-11-02 12:38:58,373 INFO L226 Difference]: Without dead ends: 42984 [2024-11-02 12:38:58,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:58,404 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 144 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:58,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 601 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:38:58,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42984 states. [2024-11-02 12:38:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42984 to 42984. [2024-11-02 12:38:59,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42984 states, 42720 states have (on average 2.8862827715355803) internal successors, (123302), 42983 states have internal predecessors, (123302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42984 states to 42984 states and 123302 transitions. [2024-11-02 12:38:59,774 INFO L78 Accepts]: Start accepts. Automaton has 42984 states and 123302 transitions. Word has length 22 [2024-11-02 12:38:59,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:59,774 INFO L471 AbstractCegarLoop]: Abstraction has 42984 states and 123302 transitions. [2024-11-02 12:38:59,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:38:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 42984 states and 123302 transitions. [2024-11-02 12:38:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 12:38:59,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:59,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:59,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:38:59,776 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-02 12:38:59,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1595325554, now seen corresponding path program 1 times [2024-11-02 12:38:59,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:59,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66245965] [2024-11-02 12:38:59,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:59,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:59,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66245965] [2024-11-02 12:38:59,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66245965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:59,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:59,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:38:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646658060] [2024-11-02 12:38:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:59,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:59,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:59,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:59,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:59,854 INFO L87 Difference]: Start difference. First operand 42984 states and 123302 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:00,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:00,753 INFO L93 Difference]: Finished difference Result 42990 states and 123308 transitions. [2024-11-02 12:39:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:39:00,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2024-11-02 12:39:00,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:00,970 INFO L225 Difference]: With dead ends: 42990 [2024-11-02 12:39:00,971 INFO L226 Difference]: Without dead ends: 41696 [2024-11-02 12:39:00,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:39:01,001 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 188 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:01,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 290 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:39:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41696 states. [2024-11-02 12:39:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41696 to 41690. [2024-11-02 12:39:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41690 states, 41484 states have (on average 2.8816411146466105) internal successors, (119542), 41689 states have internal predecessors, (119542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:02,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41690 states to 41690 states and 119542 transitions. [2024-11-02 12:39:02,524 INFO L78 Accepts]: Start accepts. Automaton has 41690 states and 119542 transitions. Word has length 24 [2024-11-02 12:39:02,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:02,524 INFO L471 AbstractCegarLoop]: Abstraction has 41690 states and 119542 transitions. [2024-11-02 12:39:02,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 41690 states and 119542 transitions. [2024-11-02 12:39:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 12:39:02,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:02,526 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:02,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:39:02,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-02 12:39:02,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:02,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1769067839, now seen corresponding path program 1 times [2024-11-02 12:39:02,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:02,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200697294] [2024-11-02 12:39:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:02,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:02,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:02,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200697294] [2024-11-02 12:39:02,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200697294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:02,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:02,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:39:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364985350] [2024-11-02 12:39:02,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:02,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:39:02,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:39:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:39:02,572 INFO L87 Difference]: Start difference. First operand 41690 states and 119542 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:02,914 INFO L93 Difference]: Finished difference Result 41690 states and 119542 transitions. [2024-11-02 12:39:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:39:02,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-02 12:39:02,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:03,102 INFO L225 Difference]: With dead ends: 41690 [2024-11-02 12:39:03,103 INFO L226 Difference]: Without dead ends: 41689 [2024-11-02 12:39:03,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:39:03,128 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 3 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:03,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 453 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:39:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41689 states. [2024-11-02 12:39:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41689 to 41689. [2024-11-02 12:39:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41689 states, 41484 states have (on average 2.8816170089673125) internal successors, (119541), 41688 states have internal predecessors, (119541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41689 states to 41689 states and 119541 transitions. [2024-11-02 12:39:05,032 INFO L78 Accepts]: Start accepts. Automaton has 41689 states and 119541 transitions. Word has length 26 [2024-11-02 12:39:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:05,032 INFO L471 AbstractCegarLoop]: Abstraction has 41689 states and 119541 transitions. [2024-11-02 12:39:05,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 41689 states and 119541 transitions. [2024-11-02 12:39:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-02 12:39:05,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:05,033 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:05,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:39:05,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-02 12:39:05,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:05,034 INFO L85 PathProgramCache]: Analyzing trace with hash 386408926, now seen corresponding path program 1 times [2024-11-02 12:39:05,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:05,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693790053] [2024-11-02 12:39:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:05,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:05,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:39:05,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693790053] [2024-11-02 12:39:05,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693790053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:05,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:05,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:39:05,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514308803] [2024-11-02 12:39:05,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:05,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:39:05,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:39:05,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:39:05,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:39:05,115 INFO L87 Difference]: Start difference. First operand 41689 states and 119541 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:05,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:05,773 INFO L93 Difference]: Finished difference Result 83335 states and 239038 transitions. [2024-11-02 12:39:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:39:05,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-02 12:39:05,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:06,464 INFO L225 Difference]: With dead ends: 83335 [2024-11-02 12:39:06,464 INFO L226 Difference]: Without dead ends: 83334 [2024-11-02 12:39:06,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:39:06,481 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 208 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:06,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 644 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:39:06,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83334 states.