./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/gcd-2.i --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_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/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_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/gcd-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/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_bfbc555f-2321-4a15-8173-da9092e93951/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 abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:03,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:03,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:11:03,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:03,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:04,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:04,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:04,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:04,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:04,008 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:04,009 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:04,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:04,011 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:04,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:04,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:11:04,016 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:04,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:04,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:04,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:04,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:11:04,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:04,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:11:04,026 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:11:04,026 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:11:04,027 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:04,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:11:04,028 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:04,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:04,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:04,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:04,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:04,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:04,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:04,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:11:04,031 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:11:04,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:11:04,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:04,032 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:04,032 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:11:04,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:04,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:04,033 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_bfbc555f-2321-4a15-8173-da9092e93951/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abac4834eb8b1123405a2c6108c3d30e84ad22df2224a055d262e226b4ba66e1 [2023-11-21 22:11:04,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:04,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:04,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:04,430 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:04,431 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:04,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-atomic/gcd-2.i [2023-11-21 22:11:07,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:07,981 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:07,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/sv-benchmarks/c/pthread-atomic/gcd-2.i [2023-11-21 22:11:08,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/data/4c4d216e4/4a6186dabc2a425fb9648937b1acfa53/FLAGc176548f5 [2023-11-21 22:11:08,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/data/4c4d216e4/4a6186dabc2a425fb9648937b1acfa53 [2023-11-21 22:11:08,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:08,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:08,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:08,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:08,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:08,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bfc1304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08, skipping insertion in model container [2023-11-21 22:11:08,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,102 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:08,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:08,607 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:08,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:08,738 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:08,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08 WrapperNode [2023-11-21 22:11:08,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:08,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:08,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:08,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:08,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,849 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 193 [2023-11-21 22:11:08,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:08,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:08,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:08,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:08,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:08,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:08,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:08,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:08,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:08,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:08,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:09,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:11:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:11:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure dec_a [2023-11-21 22:11:09,048 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_a [2023-11-21 22:11:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure dec_b [2023-11-21 22:11:09,048 INFO L138 BoogieDeclarations]: Found implementation of procedure dec_b [2023-11-21 22:11:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:11:09,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:09,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:09,051 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 22:11:09,270 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:09,275 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:09,745 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:09,923 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:09,923 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:11:09,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:09 BoogieIcfgContainer [2023-11-21 22:11:09,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:09,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:09,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:09,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:09,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:08" (1/3) ... [2023-11-21 22:11:09,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c26923a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:09, skipping insertion in model container [2023-11-21 22:11:09,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (2/3) ... [2023-11-21 22:11:09,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c26923a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:09, skipping insertion in model container [2023-11-21 22:11:09,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:09" (3/3) ... [2023-11-21 22:11:09,937 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd-2.i [2023-11-21 22:11:09,948 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:11:09,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:09,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-21 22:11:09,961 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:11:10,049 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:11:10,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 219 transitions, 452 flow [2023-11-21 22:11:10,248 INFO L124 PetriNetUnfolderBase]: 15/217 cut-off events. [2023-11-21 22:11:10,251 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:11:10,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 217 events. 15/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 178 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2023-11-21 22:11:10,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 219 transitions, 452 flow [2023-11-21 22:11:10,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 127 transitions, 266 flow [2023-11-21 22:11:10,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:10,304 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;@6b01bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:10,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2023-11-21 22:11:10,325 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:11:10,326 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2023-11-21 22:11:10,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:10,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:10,327 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] [2023-11-21 22:11:10,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-21 22:11:10,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:10,333 INFO L85 PathProgramCache]: Analyzing trace with hash -2060796990, now seen corresponding path program 1 times [2023-11-21 22:11:10,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:10,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102154981] [2023-11-21 22:11:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:10,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:10,633 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 22:11:10,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:10,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102154981] [2023-11-21 22:11:10,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102154981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:10,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:10,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:10,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683629059] [2023-11-21 22:11:10,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:10,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:10,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:10,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:10,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:10,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 219 [2023-11-21 22:11:10,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 22:11:10,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:10,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 219 [2023-11-21 22:11:10,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:10,777 INFO L124 PetriNetUnfolderBase]: 14/158 cut-off events. [2023-11-21 22:11:10,777 INFO L125 PetriNetUnfolderBase]: For 15/20 co-relation queries the response was YES. [2023-11-21 22:11:10,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 158 events. 14/158 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 275 event pairs, 6 based on Foata normal form. 2/139 useless extension candidates. Maximal degree in co-relation 101. Up to 33 conditions per place. [2023-11-21 22:11:10,781 INFO L140 encePairwiseOnDemand]: 202/219 looper letters, 12 selfloop transitions, 2 changer transitions 2/112 dead transitions. [2023-11-21 22:11:10,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 112 transitions, 264 flow [2023-11-21 22:11:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:10,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:10,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-11-21 22:11:10,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.852359208523592 [2023-11-21 22:11:10,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-11-21 22:11:10,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-11-21 22:11:10,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:10,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-11-21 22:11:10,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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 22:11:10,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:10,829 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:10,831 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 266 flow. Second operand 3 states and 560 transitions. [2023-11-21 22:11:10,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 112 transitions, 264 flow [2023-11-21 22:11:10,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 112 transitions, 256 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:11:10,844 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 228 flow [2023-11-21 22:11:10,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2023-11-21 22:11:10,851 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -13 predicate places. [2023-11-21 22:11:10,852 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 228 flow [2023-11-21 22:11:10,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 22:11:10,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:10,854 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] [2023-11-21 22:11:10,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:10,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-21 22:11:10,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:10,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1496967024, now seen corresponding path program 1 times [2023-11-21 22:11:10,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:10,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389943724] [2023-11-21 22:11:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:10,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:11,003 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 22:11:11,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:11,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389943724] [2023-11-21 22:11:11,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389943724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:11,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:11,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:11,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065994265] [2023-11-21 22:11:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:11,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:11,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:11,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:11,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:11,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 219 [2023-11-21 22:11:11,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 22:11:11,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:11,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 219 [2023-11-21 22:11:11,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:11,076 INFO L124 PetriNetUnfolderBase]: 14/164 cut-off events. [2023-11-21 22:11:11,077 INFO L125 PetriNetUnfolderBase]: For 4/9 co-relation queries the response was YES. [2023-11-21 22:11:11,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 164 events. 14/164 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 302 event pairs, 6 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 153. Up to 32 conditions per place. [2023-11-21 22:11:11,079 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 11 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2023-11-21 22:11:11,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 109 transitions, 252 flow [2023-11-21 22:11:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2023-11-21 22:11:11,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8340943683409436 [2023-11-21 22:11:11,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2023-11-21 22:11:11,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2023-11-21 22:11:11,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:11,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2023-11-21 22:11:11,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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 22:11:11,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:11,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:11,090 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 228 flow. Second operand 3 states and 548 transitions. [2023-11-21 22:11:11,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 109 transitions, 252 flow [2023-11-21 22:11:11,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:11,094 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 226 flow [2023-11-21 22:11:11,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2023-11-21 22:11:11,095 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -16 predicate places. [2023-11-21 22:11:11,095 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 226 flow [2023-11-21 22:11:11,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 22:11:11,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:11,096 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] [2023-11-21 22:11:11,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:11:11,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting dec_aErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-21 22:11:11,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:11,098 INFO L85 PathProgramCache]: Analyzing trace with hash 311424583, now seen corresponding path program 1 times [2023-11-21 22:11:11,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:11,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479397467] [2023-11-21 22:11:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:11,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:11,172 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 22:11:11,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:11,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479397467] [2023-11-21 22:11:11,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479397467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:11,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:11,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:11,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264568494] [2023-11-21 22:11:11,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:11,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:11,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:11,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:11,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:11,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 219 [2023-11-21 22:11:11,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 22:11:11,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:11,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 219 [2023-11-21 22:11:11,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:11,306 INFO L124 PetriNetUnfolderBase]: 27/228 cut-off events. [2023-11-21 22:11:11,306 INFO L125 PetriNetUnfolderBase]: For 6/30 co-relation queries the response was YES. [2023-11-21 22:11:11,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 228 events. 27/228 cut-off events. For 6/30 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 679 event pairs, 6 based on Foata normal form. 2/200 useless extension candidates. Maximal degree in co-relation 239. Up to 49 conditions per place. [2023-11-21 22:11:11,312 INFO L140 encePairwiseOnDemand]: 211/219 looper letters, 11 selfloop transitions, 5 changer transitions 3/112 dead transitions. [2023-11-21 22:11:11,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 112 transitions, 269 flow [2023-11-21 22:11:11,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2023-11-21 22:11:11,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8401826484018264 [2023-11-21 22:11:11,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2023-11-21 22:11:11,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2023-11-21 22:11:11,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:11,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2023-11-21 22:11:11,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 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 22:11:11,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:11,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:11,322 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 226 flow. Second operand 3 states and 552 transitions. [2023-11-21 22:11:11,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 112 transitions, 269 flow [2023-11-21 22:11:11,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 112 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:11,351 INFO L231 Difference]: Finished difference. Result has 112 places, 108 transitions, 249 flow [2023-11-21 22:11:11,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=112, PETRI_TRANSITIONS=108} [2023-11-21 22:11:11,354 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -16 predicate places. [2023-11-21 22:11:11,354 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 108 transitions, 249 flow [2023-11-21 22:11:11,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 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 22:11:11,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:11,357 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] [2023-11-21 22:11:11,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:11,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting dec_aErr1ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-21 22:11:11,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:11,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1368665846, now seen corresponding path program 1 times [2023-11-21 22:11:11,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:11,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075870319] [2023-11-21 22:11:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:11,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:11,480 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 22:11:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075870319] [2023-11-21 22:11:11,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075870319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:11,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:11,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502313184] [2023-11-21 22:11:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:11,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:11,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:11,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:11,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:11,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 219 [2023-11-21 22:11:11,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 108 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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 22:11:11,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:11,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 219 [2023-11-21 22:11:11,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:11,573 INFO L124 PetriNetUnfolderBase]: 47/282 cut-off events. [2023-11-21 22:11:11,574 INFO L125 PetriNetUnfolderBase]: For 59/89 co-relation queries the response was YES. [2023-11-21 22:11:11,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 282 events. 47/282 cut-off events. For 59/89 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 944 event pairs, 10 based on Foata normal form. 1/258 useless extension candidates. Maximal degree in co-relation 215. Up to 59 conditions per place. [2023-11-21 22:11:11,578 INFO L140 encePairwiseOnDemand]: 212/219 looper letters, 12 selfloop transitions, 6 changer transitions 0/113 dead transitions. [2023-11-21 22:11:11,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 113 transitions, 301 flow [2023-11-21 22:11:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:11,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2023-11-21 22:11:11,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8508371385083714 [2023-11-21 22:11:11,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2023-11-21 22:11:11,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2023-11-21 22:11:11,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:11,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2023-11-21 22:11:11,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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 22:11:11,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:11,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 22:11:11,588 INFO L175 Difference]: Start difference. First operand has 112 places, 108 transitions, 249 flow. Second operand 3 states and 559 transitions. [2023-11-21 22:11:11,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 113 transitions, 301 flow [2023-11-21 22:11:11,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 113 transitions, 289 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:11,598 INFO L231 Difference]: Finished difference. Result has 110 places, 111 transitions, 281 flow [2023-11-21 22:11:11,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=110, PETRI_TRANSITIONS=111} [2023-11-21 22:11:11,600 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -18 predicate places. [2023-11-21 22:11:11,600 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 111 transitions, 281 flow [2023-11-21 22:11:11,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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 22:11:11,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:11,602 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, 1, 1, 1] [2023-11-21 22:11:11,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:11:11,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-21 22:11:11,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1271443474, now seen corresponding path program 1 times [2023-11-21 22:11:11,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:11,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940017211] [2023-11-21 22:11:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:11,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:12,360 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 22:11:12,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:12,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940017211] [2023-11-21 22:11:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940017211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:12,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:12,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:12,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015294500] [2023-11-21 22:11:12,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:12,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:12,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:12,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:12,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:12,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 219 [2023-11-21 22:11:12,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 111 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 22:11:12,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:12,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 219 [2023-11-21 22:11:12,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:12,663 INFO L124 PetriNetUnfolderBase]: 172/518 cut-off events. [2023-11-21 22:11:12,664 INFO L125 PetriNetUnfolderBase]: For 859/1095 co-relation queries the response was YES. [2023-11-21 22:11:12,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 518 events. 172/518 cut-off events. For 859/1095 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2536 event pairs, 8 based on Foata normal form. 28/469 useless extension candidates. Maximal degree in co-relation 338. Up to 126 conditions per place. [2023-11-21 22:11:12,672 INFO L140 encePairwiseOnDemand]: 214/219 looper letters, 26 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2023-11-21 22:11:12,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 126 transitions, 459 flow [2023-11-21 22:11:12,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:12,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1083 transitions. [2023-11-21 22:11:12,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8242009132420092 [2023-11-21 22:11:12,679 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1083 transitions. [2023-11-21 22:11:12,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1083 transitions. [2023-11-21 22:11:12,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:12,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1083 transitions. [2023-11-21 22:11:12,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 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 22:11:12,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 219.0) internal successors, (1533), 7 states have internal predecessors, (1533), 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 22:11:12,690 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 219.0) internal successors, (1533), 7 states have internal predecessors, (1533), 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 22:11:12,690 INFO L175 Difference]: Start difference. First operand has 110 places, 111 transitions, 281 flow. Second operand 6 states and 1083 transitions. [2023-11-21 22:11:12,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 126 transitions, 459 flow [2023-11-21 22:11:12,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 126 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:12,697 INFO L231 Difference]: Finished difference. Result has 112 places, 110 transitions, 275 flow [2023-11-21 22:11:12,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=112, PETRI_TRANSITIONS=110} [2023-11-21 22:11:12,698 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, -16 predicate places. [2023-11-21 22:11:12,699 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 110 transitions, 275 flow [2023-11-21 22:11:12,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 22:11:12,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:12,701 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, 1, 1, 1, 1, 1] [2023-11-21 22:11:12,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:12,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting dec_bErr0ASSERT_VIOLATIONDATA_RACE === [dec_aErr0ASSERT_VIOLATIONDATA_RACE, dec_aErr1ASSERT_VIOLATIONDATA_RACE, dec_aErr2ASSERT_VIOLATIONDATA_RACE, dec_aErr3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-21 22:11:12,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:12,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1012190211, now seen corresponding path program 1 times [2023-11-21 22:11:12,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:12,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376731931] [2023-11-21 22:11:12,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:12,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:12,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:11:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:12,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:11:12,858 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:11:12,859 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location dec_bErr0ASSERT_VIOLATIONDATA_RACE (34 of 35 remaining) [2023-11-21 22:11:12,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2023-11-21 22:11:12,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2023-11-21 22:11:12,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2023-11-21 22:11:12,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2023-11-21 22:11:12,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2023-11-21 22:11:12,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr5ASSERT_VIOLATIONDATA_RACE (28 of 35 remaining) [2023-11-21 22:11:12,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr6ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2023-11-21 22:11:12,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2023-11-21 22:11:12,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr1ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2023-11-21 22:11:12,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr2ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2023-11-21 22:11:12,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr3ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2023-11-21 22:11:12,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr4ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2023-11-21 22:11:12,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr5ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2023-11-21 22:11:12,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr6ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2023-11-21 22:11:12,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2023-11-21 22:11:12,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2023-11-21 22:11:12,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2023-11-21 22:11:12,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2023-11-21 22:11:12,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2023-11-21 22:11:12,873 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2023-11-21 22:11:12,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 35 remaining) [2023-11-21 22:11:12,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2023-11-21 22:11:12,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr1ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2023-11-21 22:11:12,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr2ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2023-11-21 22:11:12,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr3ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2023-11-21 22:11:12,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr4ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2023-11-21 22:11:12,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr5ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2023-11-21 22:11:12,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_aErr6ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2023-11-21 22:11:12,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr1ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2023-11-21 22:11:12,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr2ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2023-11-21 22:11:12,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr3ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2023-11-21 22:11:12,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr4ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2023-11-21 22:11:12,880 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr5ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2023-11-21 22:11:12,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location dec_bErr6ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2023-11-21 22:11:12,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:11:12,882 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-21 22:11:12,892 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:11:12,892 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:11:12,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-21 22:11:12,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-21 22:11:12,954 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 22:11:12,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-21 22:11:12,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:12 BasicIcfg [2023-11-21 22:11:12,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:11:12,978 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:11:12,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:11:12,978 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:11:12,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:09" (3/4) ... [2023-11-21 22:11:12,981 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:11:12,982 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:11:12,983 INFO L158 Benchmark]: Toolchain (without parser) took 4953.27ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 120.2MB in the beginning and 158.6MB in the end (delta: -38.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:12,983 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:12,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.73ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 99.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:11:12,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.33ms. Allocated memory is still 167.8MB. Free memory was 99.2MB in the beginning and 96.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:12,987 INFO L158 Benchmark]: Boogie Preprocessor took 85.66ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 95.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:12,987 INFO L158 Benchmark]: RCFGBuilder took 987.60ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 65.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 22:11:12,988 INFO L158 Benchmark]: TraceAbstraction took 3048.12ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 64.4MB in the beginning and 158.6MB in the end (delta: -94.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2023-11-21 22:11:12,988 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 203.4MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:12,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.73ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 99.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.33ms. Allocated memory is still 167.8MB. Free memory was 99.2MB in the beginning and 96.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.66ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 95.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 987.60ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 65.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3048.12ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 64.4MB in the beginning and 158.6MB in the end (delta: -94.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 203.4MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 718]: Data race detected [2023-11-21 22:11:13,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-21 22:11:13,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-21 22:11:13,034 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 22:11:13,035 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-21 22:11:13,062 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-21 22:11:13,063 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-21 22:11:13,067 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 22:11:13,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated Data race detected The following path leads to a data race: [L695] 0 unsigned a, b; VAL [a=0, b=0] [L747] 0 unsigned a_in=__VERIFIER_nondet_uint(); VAL [a=0, a_in=2, b=0] [L748] 0 unsigned b_in=__VERIFIER_nondet_uint(); VAL [a=0, a_in=2, b=0, b_in=1] [L749] CALL 0 assume_abort_if_not(a_in>0) [L15] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a=0, b=0, cond=1] [L749] RET 0 assume_abort_if_not(a_in>0) [L750] CALL 0 assume_abort_if_not(b_in>0) [L15] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a=0, b=0, cond=1] [L750] RET 0 assume_abort_if_not(b_in>0) [L751] CALL 0 start(a_in, b_in) [L726] 0 a=a_in VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=0, b_in=1] [L727] 0 b=b_in VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1] [L728] 0 pthread_t t1, t2; VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1, t1={10:0}, t2={9:0}] [L729] FCALL, FORK 0 pthread_create(&t1, 0, dec_a, 0) VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1, t1={10:0}, t2={9:0}] [L709] 1 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L730] FCALL, FORK 0 pthread_create(&t2, 0, dec_b, 0) VAL [\old(a_in)=2, \old(b_in)=1, a=-4294967294, a_in=2, b=-4294967295, b_in=1, t1={10:0}, t2={9:0}] [L718] 2 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L709] 1 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L709] COND TRUE 1 a!=b VAL [a=-4294967294, arg={0:0}, arg={0:0}, b=-4294967295] [L711] CALL 1 __VERIFIER_atomic_dec_a() [L698] 1 a>b [L698] COND TRUE 1 a>b [L699] EXPR 1 a-b [L699] 1 a=a-b [L711] RET 1 __VERIFIER_atomic_dec_a() [L718] 2 a!=b VAL [a=1, arg={0:0}, arg={0:0}, b=-4294967295] Now there is a data race on ~a~0 between C: a=a-b [699] and C: a!=b [718] - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 241 locations, 35 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 23 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 361 NumberOfCodeBlocks, 361 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:11:13,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbc555f-2321-4a15-8173-da9092e93951/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE