./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c --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_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/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_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/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_47737d17-acb8-4e61-8635-d7599e99a54e/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 55079ed406966de8cb8f01bd4828043af39842b101d9722a0d33cee3b1fc3a52 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:49,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:50,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:09:50,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:50,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:50,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:50,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:50,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:50,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:50,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:50,171 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:50,172 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:50,172 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:50,174 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:09:50,175 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:50,175 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:50,176 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:09:50,176 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:09:50,176 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:50,177 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:09:50,177 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:09:50,178 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:09:50,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:50,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:50,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:09:50,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:09:50,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:09:50,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:50,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:50,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:50,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:50,184 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:09:50,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:09:50,184 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:09:50,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:50,185 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:50,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:50,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:50,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:50,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:50,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:50,186 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:50,186 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:09:50,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:09:50,187 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:50,187 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:50,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:50,188 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_47737d17-acb8-4e61-8635-d7599e99a54e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55079ed406966de8cb8f01bd4828043af39842b101d9722a0d33cee3b1fc3a52 [2023-11-19 05:09:50,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:50,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:50,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:50,592 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:50,593 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:50,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2023-11-19 05:09:53,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:53,972 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:53,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/sv-benchmarks/c/weaver/popl20-min-max-inc.wvr.c [2023-11-19 05:09:53,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/data/522cc647e/f6482e3b144d4f728e5d3e539e2c3daf/FLAG351a2d94c [2023-11-19 05:09:53,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/data/522cc647e/f6482e3b144d4f728e5d3e539e2c3daf [2023-11-19 05:09:54,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:54,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:54,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:54,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:54,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:54,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@84ea5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54, skipping insertion in model container [2023-11-19 05:09:54,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:54,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:54,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:54,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:54,403 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:54,404 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:54,413 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:54,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54 WrapperNode [2023-11-19 05:09:54,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:54,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:54,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:54,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:54,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,488 INFO L138 Inliner]: procedures = 26, calls = 64, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 207 [2023-11-19 05:09:54,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:54,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:54,490 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:54,490 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:54,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:54,555 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:54,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:54,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:54,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (1/1) ... [2023-11-19 05:09:54,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:54,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:54,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:54,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47737d17-acb8-4e61-8635-d7599e99a54e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:09:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:09:54,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:09:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 05:09:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 05:09:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 05:09:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 05:09:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 05:09:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 05:09:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 05:09:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 05:09:54,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:09:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:09:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:09:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:09:54,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:54,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:09:54,673 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 05:09:54,815 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:09:54,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:55,643 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:09:56,046 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:09:56,046 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 05:09:56,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:56 BoogieIcfgContainer [2023-11-19 05:09:56,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:09:56,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:09:56,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:09:56,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:09:56,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:54" (1/3) ... [2023-11-19 05:09:56,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557eab09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:56, skipping insertion in model container [2023-11-19 05:09:56,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:54" (2/3) ... [2023-11-19 05:09:56,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557eab09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:09:56, skipping insertion in model container [2023-11-19 05:09:56,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:09:56" (3/3) ... [2023-11-19 05:09:56,072 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc.wvr.c [2023-11-19 05:09:56,084 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:09:56,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:09:56,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2023-11-19 05:09:56,096 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:09:56,247 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 05:09:56,290 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:09:56,312 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 274 transitions, 576 flow [2023-11-19 05:09:56,316 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 274 transitions, 576 flow [2023-11-19 05:09:56,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 274 places, 274 transitions, 576 flow [2023-11-19 05:09:56,479 INFO L124 PetriNetUnfolderBase]: 13/270 cut-off events. [2023-11-19 05:09:56,479 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 05:09:56,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 270 events. 13/270 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 426 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2023-11-19 05:09:56,500 INFO L119 LiptonReduction]: Number of co-enabled transitions 10736 [2023-11-19 05:10:46,250 INFO L134 LiptonReduction]: Checked pairs total: 39912 [2023-11-19 05:10:46,251 INFO L136 LiptonReduction]: Total number of compositions: 285 [2023-11-19 05:10:46,260 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 102 transitions, 232 flow