./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ --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 e9f2c63b5b236ffd2c3c18bb3989267f7d1d50794d9317a52e37b9cf94f3ba35 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:10:21,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:10:21,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 04:10:21,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:10:21,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:10:21,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:10:21,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:10:21,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:10:21,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:10:21,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:10:21,979 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:10:21,980 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:10:21,980 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:10:21,982 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:10:21,982 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:10:21,983 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:10:21,983 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:10:21,984 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:10:21,984 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:10:21,985 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:10:21,985 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:10:21,986 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:10:21,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:10:21,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:10:21,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:10:21,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:10:21,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:10:21,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:10:21,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:10:21,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:10:21,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:10:21,998 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 04:10:21,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:10:21,999 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:10:21,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:10:21,999 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:10:22,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:10:22,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:10:22,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:22,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:10:22,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:10:22,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:10:22,002 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:10:22,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:10:22,003 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:10:22,003 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:10:22,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:10:22,003 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_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f2c63b5b236ffd2c3c18bb3989267f7d1d50794d9317a52e37b9cf94f3ba35 [2023-11-19 04:10:22,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:10:22,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:10:22,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:10:22,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:10:22,312 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:10:22,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i [2023-11-19 04:10:25,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:10:25,711 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:10:25,713 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/sv-benchmarks/c/pthread-deagle/reorder_c11_good-30.i [2023-11-19 04:10:25,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/data/cbff1cfbe/7867bf0318bf499aa6d2ed8c0ff0af19/FLAG265350f22 [2023-11-19 04:10:25,745 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/data/cbff1cfbe/7867bf0318bf499aa6d2ed8c0ff0af19 [2023-11-19 04:10:25,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:10:25,749 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:10:25,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:25,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:10:25,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:10:25,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:25" (1/1) ... [2023-11-19 04:10:25,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c942dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:25, skipping insertion in model container [2023-11-19 04:10:25,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:25" (1/1) ... [2023-11-19 04:10:25,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:26,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:26,226 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:10:26,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:26,363 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:10:26,363 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:10:26,372 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:10:26,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26 WrapperNode [2023-11-19 04:10:26,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:26,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:26,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:10:26,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:10:26,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,463 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 169 [2023-11-19 04:10:26,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:26,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:10:26,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:10:26,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:10:26,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,494 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:10:26,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:10:26,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:10:26,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:10:26,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (1/1) ... [2023-11-19 04:10:26,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:26,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:26,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:10:26,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:10:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:10:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-19 04:10:26,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-19 04:10:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:10:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:10:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:10:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:10:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:10:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-19 04:10:26,601 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-19 04:10:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:10:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:10:26,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:10:26,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:10:26,604 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:10:26,759 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:10:26,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:10:27,122 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:10:27,172 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:10:27,179 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 04:10:27,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:27 BoogieIcfgContainer [2023-11-19 04:10:27,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:10:27,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:10:27,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:10:27,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:10:27,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:10:25" (1/3) ... [2023-11-19 04:10:27,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c038f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:27, skipping insertion in model container [2023-11-19 04:10:27,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:26" (2/3) ... [2023-11-19 04:10:27,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75c038f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:27, skipping insertion in model container [2023-11-19 04:10:27,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:27" (3/3) ... [2023-11-19 04:10:27,199 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_good-30.i [2023-11-19 04:10:27,229 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:10:27,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:10:27,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-19 04:10:27,238 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:10:27,358 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 04:10:27,410 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:10:27,426 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 211 transitions, 442 flow [2023-11-19 04:10:27,430 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 211 transitions, 442 flow [2023-11-19 04:10:27,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 211 transitions, 442 flow [2023-11-19 04:10:27,663 INFO L124 PetriNetUnfolderBase]: 32/529 cut-off events. [2023-11-19 04:10:27,663 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 04:10:27,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 529 events. 32/529 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2197 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 252. Up to 8 conditions per place. [2023-11-19 04:10:27,695 INFO L119 LiptonReduction]: Number of co-enabled transitions 11020 [2023-11-19 04:10:33,546 INFO L134 LiptonReduction]: Checked pairs total: 21880 [2023-11-19 04:10:33,546 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-11-19 04:10:33,556 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 64 transitions, 148 flow [2023-11-19 04:10:33,704 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2077 states, 1666 states have (on average 3.2160864345738296) internal successors, (5358), 2076 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:33,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:10:33,729 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=true, 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;@28919f4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:10:33,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-19 04:10:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 2077 states, 1666 states have (on average 3.2160864345738296) internal successors, (5358), 2076 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:33,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 04:10:33,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:33,745 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 04:10:33,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 04:10:33,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash 791, now seen corresponding path program 1 times [2023-11-19 04:10:33,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:33,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844054626] [2023-11-19 04:10:33,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:33,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:33,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:33,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844054626] [2023-11-19 04:10:33,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844054626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:33,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:33,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 04:10:33,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371324573] [2023-11-19 04:10:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:33,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:10:33,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:33,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:10:33,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:33,944 INFO L87 Difference]: Start difference. First operand has 2077 states, 1666 states have (on average 3.2160864345738296) internal successors, (5358), 2076 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:34,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:34,064 INFO L93 Difference]: Finished difference Result 618 states and 1483 transitions. [2023-11-19 04:10:34,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:10:34,067 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-19 04:10:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:34,097 INFO L225 Difference]: With dead ends: 618 [2023-11-19 04:10:34,097 INFO L226 Difference]: Without dead ends: 559 [2023-11-19 04:10:34,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:34,107 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:34,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:34,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-19 04:10:34,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-11-19 04:10:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 532 states have (on average 2.511278195488722) internal successors, (1336), 558 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1336 transitions. [2023-11-19 04:10:34,214 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1336 transitions. Word has length 1 [2023-11-19 04:10:34,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:34,215 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 1336 transitions. [2023-11-19 04:10:34,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1336 transitions. [2023-11-19 04:10:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:10:34,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:34,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 04:10:34,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:10:34,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 04:10:34,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:34,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1919534027, now seen corresponding path program 1 times [2023-11-19 04:10:34,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:34,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81195945] [2023-11-19 04:10:34,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:34,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:34,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:34,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81195945] [2023-11-19 04:10:34,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81195945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:34,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:34,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:10:34,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351381658] [2023-11-19 04:10:34,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:34,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:34,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:34,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:34,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:34,359 INFO L87 Difference]: Start difference. First operand 559 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:34,482 INFO L93 Difference]: Finished difference Result 345 states and 815 transitions. [2023-11-19 04:10:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:34,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-19 04:10:34,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:34,489 INFO L225 Difference]: With dead ends: 345 [2023-11-19 04:10:34,489 INFO L226 Difference]: Without dead ends: 345 [2023-11-19 04:10:34,490 INFO L412 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 [2023-11-19 04:10:34,493 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:34,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 19 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:10:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-19 04:10:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2023-11-19 04:10:34,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 331 states have (on average 2.4622356495468276) internal successors, (815), 344 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:34,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 815 transitions. [2023-11-19 04:10:34,526 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 815 transitions. Word has length 6 [2023-11-19 04:10:34,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:34,527 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 815 transitions. [2023-11-19 04:10:34,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 815 transitions. [2023-11-19 04:10:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:10:34,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:34,529 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 04:10:34,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:10:34,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 04:10:34,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:34,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1889515495, now seen corresponding path program 1 times [2023-11-19 04:10:34,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:34,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030627147] [2023-11-19 04:10:34,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:34,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:10:34,618 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:10:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:10:34,707 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:10:34,713 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:10:34,715 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2023-11-19 04:10:34,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-19 04:10:34,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-19 04:10:34,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-19 04:10:34,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-19 04:10:34,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-19 04:10:34,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-19 04:10:34,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-19 04:10:34,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-19 04:10:34,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-11-19 04:10:34,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-19 04:10:34,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-19 04:10:34,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-19 04:10:34,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-19 04:10:34,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-19 04:10:34,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-19 04:10:34,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-19 04:10:34,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-19 04:10:34,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-19 04:10:34,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-19 04:10:34,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-11-19 04:10:34,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2023-11-19 04:10:34,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-19 04:10:34,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-19 04:10:34,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-19 04:10:34,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-19 04:10:34,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-19 04:10:34,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-19 04:10:34,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-19 04:10:34,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 36 remaining) [2023-11-19 04:10:34,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-19 04:10:34,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-19 04:10:34,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-19 04:10:34,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-19 04:10:34,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-19 04:10:34,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-11-19 04:10:34,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:10:34,743 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 04:10:34,746 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 04:10:34,746 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 04:10:34,814 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 04:10:34,820 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:10:34,821 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 265 transitions, 574 flow [2023-11-19 04:10:34,821 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 265 transitions, 574 flow [2023-11-19 04:10:34,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 265 transitions, 574 flow [2023-11-19 04:10:35,277 INFO L124 PetriNetUnfolderBase]: 131/1775 cut-off events. [2023-11-19 04:10:35,277 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-19 04:10:35,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1864 conditions, 1775 events. 131/1775 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10646 event pairs, 2 based on Foata normal form. 0/1404 useless extension candidates. Maximal degree in co-relation 998. Up to 32 conditions per place. [2023-11-19 04:10:35,354 INFO L119 LiptonReduction]: Number of co-enabled transitions 27540 [2023-11-19 04:10:42,543 INFO L134 LiptonReduction]: Checked pairs total: 74128 [2023-11-19 04:10:42,543 INFO L136 LiptonReduction]: Total number of compositions: 257 [2023-11-19 04:10:42,545 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 96 transitions, 236 flow [2023-11-19 04:10:53,182 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226881 states, 218033 states have (on average 4.599367985580164) internal successors, (1002814), 226880 states have internal predecessors, (1002814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:53,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:10:53,196 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=true, 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;@28919f4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:10:53,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-19 04:10:53,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 226881 states, 218033 states have (on average 4.599367985580164) internal successors, (1002814), 226880 states have internal predecessors, (1002814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 04:10:53,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:53,592 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 04:10:53,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-19 04:10:53,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:53,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1361, now seen corresponding path program 1 times [2023-11-19 04:10:53,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:53,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886678403] [2023-11-19 04:10:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:53,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:10:53,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:53,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886678403] [2023-11-19 04:10:53,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886678403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:53,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:53,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 04:10:53,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643322519] [2023-11-19 04:10:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:53,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:10:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:10:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:54,113 INFO L87 Difference]: Start difference. First operand has 226881 states, 218033 states have (on average 4.599367985580164) internal successors, (1002814), 226880 states have internal predecessors, (1002814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:55,838 INFO L93 Difference]: Finished difference Result 46993 states and 193335 transitions. [2023-11-19 04:10:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:10:55,839 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-19 04:10:55,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:56,378 INFO L225 Difference]: With dead ends: 46993 [2023-11-19 04:10:56,379 INFO L226 Difference]: Without dead ends: 46454 [2023-11-19 04:10:56,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:10:56,383 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:56,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:10:57,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46454 states. [2023-11-19 04:10:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46454 to 46454. [2023-11-19 04:10:59,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46454 states, 46202 states have (on average 4.125124453486862) internal successors, (190589), 46453 states have internal predecessors, (190589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:59,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46454 states to 46454 states and 190589 transitions. [2023-11-19 04:10:59,958 INFO L78 Accepts]: Start accepts. Automaton has 46454 states and 190589 transitions. Word has length 1 [2023-11-19 04:10:59,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:59,959 INFO L495 AbstractCegarLoop]: Abstraction has 46454 states and 190589 transitions. [2023-11-19 04:10:59,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:10:59,960 INFO L276 IsEmpty]: Start isEmpty. Operand 46454 states and 190589 transitions. [2023-11-19 04:10:59,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:10:59,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:59,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 04:10:59,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:10:59,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-19 04:10:59,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1543982736, now seen corresponding path program 1 times [2023-11-19 04:10:59,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:59,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585988453] [2023-11-19 04:10:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:59,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:11:00,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:11:00,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585988453] [2023-11-19 04:11:00,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585988453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:00,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:00,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:11:00,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028949643] [2023-11-19 04:11:00,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:00,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:00,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:11:00,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:00,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:00,048 INFO L87 Difference]: Start difference. First operand 46454 states and 190589 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:11:01,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:01,688 INFO L93 Difference]: Finished difference Result 37130 states and 146741 transitions. [2023-11-19 04:11:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:01,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-19 04:11:01,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:02,228 INFO L225 Difference]: With dead ends: 37130 [2023-11-19 04:11:02,228 INFO L226 Difference]: Without dead ends: 37130 [2023-11-19 04:11:02,229 INFO L412 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 [2023-11-19 04:11:02,232 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 57 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:02,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 55 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:11:02,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37130 states. [2023-11-19 04:11:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37130 to 34981. [2023-11-19 04:11:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34981 states, 34834 states have (on average 4.033846242177183) internal successors, (140515), 34980 states have internal predecessors, (140515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:11:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34981 states to 34981 states and 140515 transitions. [2023-11-19 04:11:04,296 INFO L78 Accepts]: Start accepts. Automaton has 34981 states and 140515 transitions. Word has length 6 [2023-11-19 04:11:04,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:04,296 INFO L495 AbstractCegarLoop]: Abstraction has 34981 states and 140515 transitions. [2023-11-19 04:11:04,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:11:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 34981 states and 140515 transitions. [2023-11-19 04:11:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:11:04,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:04,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:04,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:11:04,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-19 04:11:04,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash 151629613, now seen corresponding path program 1 times [2023-11-19 04:11:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:11:04,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687596050] [2023-11-19 04:11:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:11:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:11:04,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:11:04,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687596050] [2023-11-19 04:11:04,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687596050] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:11:04,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250305669] [2023-11-19 04:11:04,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:04,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:11:04,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:04,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:11:04,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d880fce-3d35-4559-9f3d-1157d28852d2/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:11:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:04,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:04,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:11:04,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:04,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250305669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:04,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 04:11:04,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-11-19 04:11:04,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864801077] [2023-11-19 04:11:04,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:04,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:04,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:11:04,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:04,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:11:04,507 INFO L87 Difference]: Start difference. First operand 34981 states and 140515 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:11:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:05,233 INFO L93 Difference]: Finished difference Result 64466 states and 250655 transitions. [2023-11-19 04:11:05,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:05,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 04:11:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:06,562 INFO L225 Difference]: With dead ends: 64466 [2023-11-19 04:11:06,563 INFO L226 Difference]: Without dead ends: 64466 [2023-11-19 04:11:06,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:11:06,564 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:06,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 38 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:11:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64466 states.