./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:33,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:34,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:25:34,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:34,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:34,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:34,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:34,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:34,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:34,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:34,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:34,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:34,108 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:34,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:34,109 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:34,109 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:34,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:34,110 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:34,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:34,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:34,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:34,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:34,113 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:25:34,113 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:25:34,113 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:34,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:34,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:34,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:34,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:34,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:34,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:34,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:34,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:34,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:34,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:34,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:25:34,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:34,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:34,119 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:34,120 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:34,120 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:34,120 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 [2023-11-21 22:25:34,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:34,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:34,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:34,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:34,450 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:34,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-21 22:25:37,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:37,797 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:37,798 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-21 22:25:37,816 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/data/342567785/7f486ed75ec842d6b4a7f5270068fdb4/FLAG2e0088e5d [2023-11-21 22:25:37,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/data/342567785/7f486ed75ec842d6b4a7f5270068fdb4 [2023-11-21 22:25:37,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:37,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:37,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:37,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:37,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:37,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:37" (1/1) ... [2023-11-21 22:25:37,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26711ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:37, skipping insertion in model container [2023-11-21 22:25:37,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:37" (1/1) ... [2023-11-21 22:25:37,890 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:38,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:38,160 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:38,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:38,237 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:38,237 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:38,244 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:38,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38 WrapperNode [2023-11-21 22:25:38,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:38,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:38,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:38,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:38,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,339 INFO L138 Inliner]: procedures = 28, calls = 75, calls flagged for inlining = 19, calls inlined = 27, statements flattened = 679 [2023-11-21 22:25:38,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:38,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:38,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:38,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:38,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:38,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:38,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:38,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:38,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (1/1) ... [2023-11-21 22:25:38,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:38,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:38,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:38,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebb64b7b-c10e-45aa-9e6f-9816eeb02ee5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:38,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:25:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:25:38,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:25:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:25:38,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:25:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:25:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:25:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:25:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:25:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:25:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:25:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:25:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:25:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:25:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:38,544 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:25:38,801 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:38,804 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:39,984 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:40,711 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:40,712 INFO L308 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-21 22:25:40,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:40 BoogieIcfgContainer [2023-11-21 22:25:40,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:40,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:40,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:40,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:40,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:37" (1/3) ... [2023-11-21 22:25:40,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245e19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:40, skipping insertion in model container [2023-11-21 22:25:40,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:38" (2/3) ... [2023-11-21 22:25:40,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245e19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:40, skipping insertion in model container [2023-11-21 22:25:40,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:40" (3/3) ... [2023-11-21 22:25:40,727 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2023-11-21 22:25:40,737 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:25:40,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:40,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2023-11-21 22:25:40,750 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:25:40,945 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:25:41,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 632 places, 658 transitions, 1337 flow [2023-11-21 22:25:41,433 INFO L124 PetriNetUnfolderBase]: 36/655 cut-off events. [2023-11-21 22:25:41,433 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:25:41,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 655 events. 36/655 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2052 event pairs, 0 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 501. Up to 2 conditions per place. [2023-11-21 22:25:41,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 632 places, 658 transitions, 1337 flow [2023-11-21 22:25:41,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 607 places, 632 transitions, 1282 flow [2023-11-21 22:25:41,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:41,502 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=PETRI_NET, 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;@5a8edbd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:41,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2023-11-21 22:25:41,508 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:25:41,508 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-21 22:25:41,508 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:25:41,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:25:41,509 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:41,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-21 22:25:41,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:41,518 INFO L85 PathProgramCache]: Analyzing trace with hash 175564931, now seen corresponding path program 1 times [2023-11-21 22:25:41,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:41,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974469587] [2023-11-21 22:25:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:41,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:41,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974469587] [2023-11-21 22:25:41,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974469587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:41,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:41,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:25:41,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572701471] [2023-11-21 22:25:41,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:41,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:25:41,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:41,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:25:41,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:25:41,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 658 [2023-11-21 22:25:41,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 632 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 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) [2023-11-21 22:25:41,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:25:41,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 658 [2023-11-21 22:25:41,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:25:42,976 INFO L124 PetriNetUnfolderBase]: 109/1764 cut-off events. [2023-11-21 22:25:42,976 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-21 22:25:42,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 1764 events. 109/1764 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11517 event pairs, 38 based on Foata normal form. 60/1508 useless extension candidates. Maximal degree in co-relation 1078. Up to 92 conditions per place. [2023-11-21 22:25:43,013 INFO L140 encePairwiseOnDemand]: 610/658 looper letters, 16 selfloop transitions, 2 changer transitions 8/586 dead transitions. [2023-11-21 22:25:43,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 586 transitions, 1226 flow [2023-11-21 22:25:43,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:25:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:25:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1837 transitions. [2023-11-21 22:25:43,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.930597771023303 [2023-11-21 22:25:43,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1837 transitions. [2023-11-21 22:25:43,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1837 transitions. [2023-11-21 22:25:43,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:25:43,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1837 transitions. [2023-11-21 22:25:43,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.3333333333334) internal successors, (1837), 3 states have internal predecessors, (1837), 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) [2023-11-21 22:25:43,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-21 22:25:43,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-21 22:25:43,073 INFO L175 Difference]: Start difference. First operand has 607 places, 632 transitions, 1282 flow. Second operand 3 states and 1837 transitions. [2023-11-21 22:25:43,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 586 transitions, 1226 flow [2023-11-21 22:25:43,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 586 transitions, 1214 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 22:25:43,100 INFO L231 Difference]: Finished difference. Result has 575 places, 578 transitions, 1166 flow [2023-11-21 22:25:43,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1178, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1166, PETRI_PLACES=575, PETRI_TRANSITIONS=578} [2023-11-21 22:25:43,107 INFO L281 CegarLoopForPetriNet]: 607 programPoint places, -32 predicate places. [2023-11-21 22:25:43,107 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 578 transitions, 1166 flow [2023-11-21 22:25:43,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 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) [2023-11-21 22:25:43,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:25:43,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:43,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:25:43,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-21 22:25:43,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:43,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1136976156, now seen corresponding path program 1 times [2023-11-21 22:25:43,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:43,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002506472] [2023-11-21 22:25:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:43,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:43,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:43,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002506472] [2023-11-21 22:25:43,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002506472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:43,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:43,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:25:43,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237871906] [2023-11-21 22:25:43,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:43,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:25:43,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:43,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:25:43,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:25:43,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 590 out of 658 [2023-11-21 22:25:43,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 578 transitions, 1166 flow. Second operand has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 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) [2023-11-21 22:25:43,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:25:43,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 590 of 658 [2023-11-21 22:25:43,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:25:44,240 INFO L124 PetriNetUnfolderBase]: 90/1466 cut-off events. [2023-11-21 22:25:44,241 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2023-11-21 22:25:44,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1466 events. 90/1466 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8559 event pairs, 34 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1535. Up to 87 conditions per place. [2023-11-21 22:25:44,270 INFO L140 encePairwiseOnDemand]: 655/658 looper letters, 17 selfloop transitions, 2 changer transitions 0/577 dead transitions. [2023-11-21 22:25:44,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 577 transitions, 1202 flow [2023-11-21 22:25:44,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:25:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:25:44,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1790 transitions. [2023-11-21 22:25:44,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9067882472137792 [2023-11-21 22:25:44,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1790 transitions. [2023-11-21 22:25:44,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1790 transitions. [2023-11-21 22:25:44,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:25:44,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1790 transitions. [2023-11-21 22:25:44,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 596.6666666666666) internal successors, (1790), 3 states have internal predecessors, (1790), 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) [2023-11-21 22:25:44,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-21 22:25:44,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-21 22:25:44,297 INFO L175 Difference]: Start difference. First operand has 575 places, 578 transitions, 1166 flow. Second operand 3 states and 1790 transitions. [2023-11-21 22:25:44,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 577 transitions, 1202 flow [2023-11-21 22:25:44,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 577 transitions, 1198 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:25:44,313 INFO L231 Difference]: Finished difference. Result has 566 places, 577 transitions, 1164 flow [2023-11-21 22:25:44,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1164, PETRI_PLACES=566, PETRI_TRANSITIONS=577} [2023-11-21 22:25:44,315 INFO L281 CegarLoopForPetriNet]: 607 programPoint places, -41 predicate places. [2023-11-21 22:25:44,316 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 577 transitions, 1164 flow [2023-11-21 22:25:44,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 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) [2023-11-21 22:25:44,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:25:44,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:44,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:25:44,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-21 22:25:44,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:44,319 INFO L85 PathProgramCache]: Analyzing trace with hash -592773028, now seen corresponding path program 1 times [2023-11-21 22:25:44,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:44,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079137792] [2023-11-21 22:25:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:44,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:44,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:44,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079137792] [2023-11-21 22:25:44,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079137792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:44,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:44,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:25:44,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733514757] [2023-11-21 22:25:44,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:44,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:25:44,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:44,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:25:44,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:25:44,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 658 [2023-11-21 22:25:44,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 577 transitions, 1164 flow. Second operand has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 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) [2023-11-21 22:25:44,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:25:44,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 658 [2023-11-21 22:25:44,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:25:45,146 INFO L124 PetriNetUnfolderBase]: 138/1891 cut-off events. [2023-11-21 22:25:45,147 INFO L125 PetriNetUnfolderBase]: For 14/20 co-relation queries the response was YES. [2023-11-21 22:25:45,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2048 conditions, 1891 events. 138/1891 cut-off events. For 14/20 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12828 event pairs, 59 based on Foata normal form. 0/1569 useless extension candidates. Maximal degree in co-relation 2006. Up to 138 conditions per place. [2023-11-21 22:25:45,185 INFO L140 encePairwiseOnDemand]: 652/658 looper letters, 19 selfloop transitions, 1 changer transitions 0/572 dead transitions. [2023-11-21 22:25:45,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 572 transitions, 1194 flow [2023-11-21 22:25:45,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:25:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:25:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1783 transitions. [2023-11-21 22:25:45,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.903242147922999 [2023-11-21 22:25:45,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1783 transitions. [2023-11-21 22:25:45,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1783 transitions. [2023-11-21 22:25:45,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:25:45,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1783 transitions. [2023-11-21 22:25:45,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 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) [2023-11-21 22:25:45,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-21 22:25:45,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-21 22:25:45,209 INFO L175 Difference]: Start difference. First operand has 566 places, 577 transitions, 1164 flow. Second operand 3 states and 1783 transitions. [2023-11-21 22:25:45,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 572 transitions, 1194 flow [2023-11-21 22:25:45,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 572 transitions, 1190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:25:45,223 INFO L231 Difference]: Finished difference. Result has 561 places, 572 transitions, 1152 flow [2023-11-21 22:25:45,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1152, PETRI_PLACES=561, PETRI_TRANSITIONS=572} [2023-11-21 22:25:45,225 INFO L281 CegarLoopForPetriNet]: 607 programPoint places, -46 predicate places. [2023-11-21 22:25:45,225 INFO L495 AbstractCegarLoop]: Abstraction has has 561 places, 572 transitions, 1152 flow [2023-11-21 22:25:45,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 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) [2023-11-21 22:25:45,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:25:45,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:45,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:25:45,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-21 22:25:45,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash -144756380, now seen corresponding path program 1 times [2023-11-21 22:25:45,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:45,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508511548] [2023-11-21 22:25:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:45,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:46,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508511548] [2023-11-21 22:25:46,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508511548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:46,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:46,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:25:46,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704357068] [2023-11-21 22:25:46,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:46,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:25:46,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:46,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:25:46,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:25:46,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 496 out of 658 [2023-11-21 22:25:46,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 572 transitions, 1152 flow. Second operand has 6 states, 6 states have (on average 497.5) internal successors, (2985), 6 states have internal predecessors, (2985), 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) [2023-11-21 22:25:46,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:25:46,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 496 of 658 [2023-11-21 22:25:46,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand