./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:35:22,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:35:22,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:35:22,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:35:22,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:35:22,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:35:22,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:35:22,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:35:22,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:35:23,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:35:23,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:35:23,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:35:23,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:35:23,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:35:23,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:35:23,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:35:23,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:35:23,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:35:23,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:35:23,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:35:23,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:35:23,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:35:23,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:35:23,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:35:23,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:35:23,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:35:23,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:35:23,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:35:23,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:35:23,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:35:23,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:35:23,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:35:23,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:35:23,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:35:23,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:35:23,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:35:23,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:35:23,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:35:23,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:35:23,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:35:23,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:35:23,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:35:23,109 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:35:23,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:35:23,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:35:23,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:35:23,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:35:23,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:35:23,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:35:23,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:35:23,113 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:35:23,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:35:23,115 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:35:23,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:35:23,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:35:23,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:35:23,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:35:23,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:35:23,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:35:23,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:35:23,118 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:35:23,118 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:35:23,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:35:23,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:35:23,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:35:23,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:35:23,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:35:23,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:35:23,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:35:23,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:35:23,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:35:23,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:35:23,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:35:23,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:35:23,138 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:35:23,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:35:23,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:35:23,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 [2022-11-18 20:35:23,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:35:23,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:35:23,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:35:23,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:35:23,512 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:35:23,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-atomic/dekker-b.i [2022-11-18 20:35:23,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/data/268d16bfd/c9e7115eefe743098b1a36da13c83e07/FLAG266bc7ecc [2022-11-18 20:35:24,257 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:35:24,263 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/sv-benchmarks/c/pthread-atomic/dekker-b.i [2022-11-18 20:35:24,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/data/268d16bfd/c9e7115eefe743098b1a36da13c83e07/FLAG266bc7ecc [2022-11-18 20:35:24,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/data/268d16bfd/c9e7115eefe743098b1a36da13c83e07 [2022-11-18 20:35:24,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:35:24,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:35:24,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:24,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:35:24,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:35:24,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:24" (1/1) ... [2022-11-18 20:35:24,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f8c235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:24, skipping insertion in model container [2022-11-18 20:35:24,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:35:24" (1/1) ... [2022-11-18 20:35:24,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:35:24,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:35:25,022 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2022-11-18 20:35:25,031 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2022-11-18 20:35:25,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:25,063 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:35:25,121 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2022-11-18 20:35:25,125 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2022-11-18 20:35:25,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:35:25,163 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:35:25,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25 WrapperNode [2022-11-18 20:35:25,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:35:25,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:25,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:35:25,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:35:25,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,211 INFO L138 Inliner]: procedures = 168, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-11-18 20:35:25,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:35:25,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:35:25,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:35:25,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:35:25,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:35:25,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:35:25,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:35:25,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:35:25,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (1/1) ... [2022-11-18 20:35:25,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:35:25,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:35:25,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:35:25,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:35:25,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:35:25,335 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-18 20:35:25,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-18 20:35:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-18 20:35:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-18 20:35:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:35:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:35:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:35:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:35:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:35:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:35:25,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:35:25,338 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:35:25,544 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:35:25,547 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:35:25,984 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:35:25,994 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:35:25,995 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:35:25,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:25 BoogieIcfgContainer [2022-11-18 20:35:25,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:35:26,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:35:26,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:35:26,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:35:26,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:35:24" (1/3) ... [2022-11-18 20:35:26,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c19a6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:26, skipping insertion in model container [2022-11-18 20:35:26,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:35:25" (2/3) ... [2022-11-18 20:35:26,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c19a6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:35:26, skipping insertion in model container [2022-11-18 20:35:26,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:25" (3/3) ... [2022-11-18 20:35:26,008 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2022-11-18 20:35:26,019 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:35:26,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:35:26,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-18 20:35:26,032 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:35:26,173 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:35:26,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 203 transitions, 422 flow [2022-11-18 20:35:26,435 INFO L130 PetriNetUnfolder]: 14/201 cut-off events. [2022-11-18 20:35:26,435 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:35:26,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 201 events. 14/201 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 452 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2022-11-18 20:35:26,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 203 transitions, 422 flow [2022-11-18 20:35:26,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 191 transitions, 391 flow [2022-11-18 20:35:26,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:35:26,505 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=LoopsAndPotentialCycles, 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;@722a55d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:35:26,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-18 20:35:26,517 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2022-11-18 20:35:26,518 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:35:26,518 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:26,519 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:26,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:26,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:26,527 INFO L85 PathProgramCache]: Analyzing trace with hash -353468067, now seen corresponding path program 1 times [2022-11-18 20:35:26,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:26,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719526863] [2022-11-18 20:35:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:26,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:26,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719526863] [2022-11-18 20:35:26,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719526863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:26,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:26,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:26,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314698215] [2022-11-18 20:35:26,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:26,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:26,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:26,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:26,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:26,964 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 203 [2022-11-18 20:35:26,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 191 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2022-11-18 20:35:26,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:26,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 203 [2022-11-18 20:35:26,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:27,429 INFO L130 PetriNetUnfolder]: 166/1083 cut-off events. [2022-11-18 20:35:27,430 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-11-18 20:35:27,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 1083 events. 166/1083 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 7664 event pairs, 39 based on Foata normal form. 69/909 useless extension candidates. Maximal degree in co-relation 1169. Up to 149 conditions per place. [2022-11-18 20:35:27,448 INFO L137 encePairwiseOnDemand]: 179/203 looper letters, 30 selfloop transitions, 11 changer transitions 1/196 dead transitions. [2022-11-18 20:35:27,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 196 transitions, 489 flow [2022-11-18 20:35:27,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2022-11-18 20:35:27,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.916256157635468 [2022-11-18 20:35:27,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2022-11-18 20:35:27,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2022-11-18 20:35:27,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:27,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2022-11-18 20:35:27,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2022-11-18 20:35:27,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:27,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:27,505 INFO L175 Difference]: Start difference. First operand has 184 places, 191 transitions, 391 flow. Second operand 3 states and 558 transitions. [2022-11-18 20:35:27,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 196 transitions, 489 flow [2022-11-18 20:35:27,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 196 transitions, 481 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:35:27,519 INFO L231 Difference]: Finished difference. Result has 181 places, 189 transitions, 454 flow [2022-11-18 20:35:27,522 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=181, PETRI_TRANSITIONS=189} [2022-11-18 20:35:27,528 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, -3 predicate places. [2022-11-18 20:35:27,529 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 189 transitions, 454 flow [2022-11-18 20:35:27,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2022-11-18 20:35:27,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:27,530 INFO L209 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] [2022-11-18 20:35:27,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:35:27,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:27,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:27,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1486696975, now seen corresponding path program 1 times [2022-11-18 20:35:27,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:27,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389438273] [2022-11-18 20:35:27,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:27,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:27,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:27,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389438273] [2022-11-18 20:35:27,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389438273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:27,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:27,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:35:27,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540262888] [2022-11-18 20:35:27,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:27,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:35:27,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:35:27,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:35:27,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 203 [2022-11-18 20:35:27,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 189 transitions, 454 flow. Second operand has 4 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 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) [2022-11-18 20:35:27,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:27,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 203 [2022-11-18 20:35:27,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:27,959 INFO L130 PetriNetUnfolder]: 90/763 cut-off events. [2022-11-18 20:35:27,959 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-11-18 20:35:27,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 763 events. 90/763 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4791 event pairs, 18 based on Foata normal form. 0/609 useless extension candidates. Maximal degree in co-relation 927. Up to 71 conditions per place. [2022-11-18 20:35:27,968 INFO L137 encePairwiseOnDemand]: 192/203 looper letters, 19 selfloop transitions, 7 changer transitions 0/194 dead transitions. [2022-11-18 20:35:27,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 194 transitions, 518 flow [2022-11-18 20:35:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:35:27,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:35:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 718 transitions. [2022-11-18 20:35:27,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8842364532019704 [2022-11-18 20:35:27,972 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 718 transitions. [2022-11-18 20:35:27,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 718 transitions. [2022-11-18 20:35:27,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:27,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 718 transitions. [2022-11-18 20:35:27,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 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) [2022-11-18 20:35:27,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 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) [2022-11-18 20:35:27,979 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 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) [2022-11-18 20:35:27,979 INFO L175 Difference]: Start difference. First operand has 181 places, 189 transitions, 454 flow. Second operand 4 states and 718 transitions. [2022-11-18 20:35:27,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 194 transitions, 518 flow [2022-11-18 20:35:27,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 194 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:35:27,990 INFO L231 Difference]: Finished difference. Result has 183 places, 191 transitions, 474 flow [2022-11-18 20:35:27,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=474, PETRI_PLACES=183, PETRI_TRANSITIONS=191} [2022-11-18 20:35:27,991 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, -1 predicate places. [2022-11-18 20:35:27,992 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 191 transitions, 474 flow [2022-11-18 20:35:27,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 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) [2022-11-18 20:35:27,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:27,993 INFO L209 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] [2022-11-18 20:35:27,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:35:27,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:27,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:27,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1659115071, now seen corresponding path program 1 times [2022-11-18 20:35:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:27,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947861611] [2022-11-18 20:35:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:28,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:28,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947861611] [2022-11-18 20:35:28,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947861611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:28,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:28,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489714272] [2022-11-18 20:35:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:28,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:28,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:28,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:28,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:28,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 203 [2022-11-18 20:35:28,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 191 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 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) [2022-11-18 20:35:28,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:28,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 203 [2022-11-18 20:35:28,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:28,296 INFO L130 PetriNetUnfolder]: 103/958 cut-off events. [2022-11-18 20:35:28,297 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-18 20:35:28,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 958 events. 103/958 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6394 event pairs, 46 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 1150. Up to 136 conditions per place. [2022-11-18 20:35:28,308 INFO L137 encePairwiseOnDemand]: 198/203 looper letters, 22 selfloop transitions, 4 changer transitions 0/197 dead transitions. [2022-11-18 20:35:28,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 197 transitions, 540 flow [2022-11-18 20:35:28,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:28,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:28,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2022-11-18 20:35:28,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2022-11-18 20:35:28,311 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2022-11-18 20:35:28,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2022-11-18 20:35:28,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:28,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2022-11-18 20:35:28,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2022-11-18 20:35:28,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:28,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:28,317 INFO L175 Difference]: Start difference. First operand has 183 places, 191 transitions, 474 flow. Second operand 3 states and 546 transitions. [2022-11-18 20:35:28,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 197 transitions, 540 flow [2022-11-18 20:35:28,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 197 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:35:28,324 INFO L231 Difference]: Finished difference. Result has 186 places, 194 transitions, 502 flow [2022-11-18 20:35:28,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=186, PETRI_TRANSITIONS=194} [2022-11-18 20:35:28,327 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, 2 predicate places. [2022-11-18 20:35:28,327 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 194 transitions, 502 flow [2022-11-18 20:35:28,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 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) [2022-11-18 20:35:28,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:28,328 INFO L209 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] [2022-11-18 20:35:28,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:35:28,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:28,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:28,330 INFO L85 PathProgramCache]: Analyzing trace with hash -212876681, now seen corresponding path program 1 times [2022-11-18 20:35:28,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:28,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130578055] [2022-11-18 20:35:28,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:28,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:28,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:28,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130578055] [2022-11-18 20:35:28,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130578055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:28,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:28,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:28,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143634525] [2022-11-18 20:35:28,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:28,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:28,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:28,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:28,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:28,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2022-11-18 20:35:28,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 194 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2022-11-18 20:35:28,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:28,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2022-11-18 20:35:28,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:28,802 INFO L130 PetriNetUnfolder]: 226/1912 cut-off events. [2022-11-18 20:35:28,802 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-11-18 20:35:28,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 1912 events. 226/1912 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 16641 event pairs, 40 based on Foata normal form. 0/1559 useless extension candidates. Maximal degree in co-relation 2502. Up to 191 conditions per place. [2022-11-18 20:35:28,823 INFO L137 encePairwiseOnDemand]: 196/203 looper letters, 26 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2022-11-18 20:35:28,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 208 transitions, 597 flow [2022-11-18 20:35:28,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2022-11-18 20:35:28,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.916256157635468 [2022-11-18 20:35:28,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2022-11-18 20:35:28,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2022-11-18 20:35:28,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:28,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2022-11-18 20:35:28,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 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) [2022-11-18 20:35:28,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:28,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:28,837 INFO L175 Difference]: Start difference. First operand has 186 places, 194 transitions, 502 flow. Second operand 3 states and 558 transitions. [2022-11-18 20:35:28,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 208 transitions, 597 flow [2022-11-18 20:35:28,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 208 transitions, 589 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:35:28,847 INFO L231 Difference]: Finished difference. Result has 188 places, 200 transitions, 544 flow [2022-11-18 20:35:28,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=544, PETRI_PLACES=188, PETRI_TRANSITIONS=200} [2022-11-18 20:35:28,854 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, 4 predicate places. [2022-11-18 20:35:28,855 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 200 transitions, 544 flow [2022-11-18 20:35:28,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2022-11-18 20:35:28,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:28,857 INFO L209 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] [2022-11-18 20:35:28,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:35:28,858 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:28,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:28,858 INFO L85 PathProgramCache]: Analyzing trace with hash -187717940, now seen corresponding path program 1 times [2022-11-18 20:35:28,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:28,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907530995] [2022-11-18 20:35:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:28,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:28,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907530995] [2022-11-18 20:35:28,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907530995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:28,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:28,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:28,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653147553] [2022-11-18 20:35:28,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:28,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:28,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:28,924 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 203 [2022-11-18 20:35:28,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 200 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2022-11-18 20:35:28,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:28,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 203 [2022-11-18 20:35:28,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:29,305 INFO L130 PetriNetUnfolder]: 231/1822 cut-off events. [2022-11-18 20:35:29,305 INFO L131 PetriNetUnfolder]: For 344/370 co-relation queries the response was YES. [2022-11-18 20:35:29,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 1822 events. 231/1822 cut-off events. For 344/370 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 15663 event pairs, 72 based on Foata normal form. 1/1502 useless extension candidates. Maximal degree in co-relation 1606. Up to 317 conditions per place. [2022-11-18 20:35:29,326 INFO L137 encePairwiseOnDemand]: 198/203 looper letters, 28 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2022-11-18 20:35:29,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 208 transitions, 643 flow [2022-11-18 20:35:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:29,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2022-11-18 20:35:29,329 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2022-11-18 20:35:29,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2022-11-18 20:35:29,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2022-11-18 20:35:29,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:29,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2022-11-18 20:35:29,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2022-11-18 20:35:29,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:29,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:29,335 INFO L175 Difference]: Start difference. First operand has 188 places, 200 transitions, 544 flow. Second operand 3 states and 546 transitions. [2022-11-18 20:35:29,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 208 transitions, 643 flow [2022-11-18 20:35:29,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 208 transitions, 627 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:35:29,342 INFO L231 Difference]: Finished difference. Result has 190 places, 204 transitions, 578 flow [2022-11-18 20:35:29,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=190, PETRI_TRANSITIONS=204} [2022-11-18 20:35:29,344 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, 6 predicate places. [2022-11-18 20:35:29,344 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 204 transitions, 578 flow [2022-11-18 20:35:29,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2022-11-18 20:35:29,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:29,345 INFO L209 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] [2022-11-18 20:35:29,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:35:29,346 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:29,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:29,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1110340053, now seen corresponding path program 1 times [2022-11-18 20:35:29,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:29,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815078579] [2022-11-18 20:35:29,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:29,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:29,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:29,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815078579] [2022-11-18 20:35:29,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815078579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:29,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:29,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:29,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619349394] [2022-11-18 20:35:29,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:29,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:29,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:29,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:29,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:29,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 203 [2022-11-18 20:35:29,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 204 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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) [2022-11-18 20:35:29,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:29,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 203 [2022-11-18 20:35:29,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:29,774 INFO L130 PetriNetUnfolder]: 322/2041 cut-off events. [2022-11-18 20:35:29,774 INFO L131 PetriNetUnfolder]: For 140/143 co-relation queries the response was YES. [2022-11-18 20:35:29,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3095 conditions, 2041 events. 322/2041 cut-off events. For 140/143 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 18070 event pairs, 115 based on Foata normal form. 0/1648 useless extension candidates. Maximal degree in co-relation 2285. Up to 382 conditions per place. [2022-11-18 20:35:29,797 INFO L137 encePairwiseOnDemand]: 197/203 looper letters, 21 selfloop transitions, 5 changer transitions 0/213 dead transitions. [2022-11-18 20:35:29,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 213 transitions, 650 flow [2022-11-18 20:35:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:29,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2022-11-18 20:35:29,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9113300492610837 [2022-11-18 20:35:29,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2022-11-18 20:35:29,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2022-11-18 20:35:29,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:29,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2022-11-18 20:35:29,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 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) [2022-11-18 20:35:29,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:29,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:29,806 INFO L175 Difference]: Start difference. First operand has 190 places, 204 transitions, 578 flow. Second operand 3 states and 555 transitions. [2022-11-18 20:35:29,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 213 transitions, 650 flow [2022-11-18 20:35:29,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 213 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:35:29,813 INFO L231 Difference]: Finished difference. Result has 192 places, 208 transitions, 604 flow [2022-11-18 20:35:29,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=192, PETRI_TRANSITIONS=208} [2022-11-18 20:35:29,814 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, 8 predicate places. [2022-11-18 20:35:29,815 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 208 transitions, 604 flow [2022-11-18 20:35:29,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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) [2022-11-18 20:35:29,815 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:29,816 INFO L209 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] [2022-11-18 20:35:29,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:35:29,816 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:29,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash 423537537, now seen corresponding path program 1 times [2022-11-18 20:35:29,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:29,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236588160] [2022-11-18 20:35:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:29,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:30,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:30,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236588160] [2022-11-18 20:35:30,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236588160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:30,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:30,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:35:30,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194743778] [2022-11-18 20:35:30,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:30,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:35:30,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:35:30,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:35:30,372 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 203 [2022-11-18 20:35:30,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 208 transitions, 604 flow. Second operand has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 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) [2022-11-18 20:35:30,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:30,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 203 [2022-11-18 20:35:30,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:30,730 INFO L130 PetriNetUnfolder]: 172/1605 cut-off events. [2022-11-18 20:35:30,731 INFO L131 PetriNetUnfolder]: For 112/224 co-relation queries the response was YES. [2022-11-18 20:35:30,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2394 conditions, 1605 events. 172/1605 cut-off events. For 112/224 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 13621 event pairs, 22 based on Foata normal form. 72/1401 useless extension candidates. Maximal degree in co-relation 2329. Up to 129 conditions per place. [2022-11-18 20:35:30,746 INFO L137 encePairwiseOnDemand]: 198/203 looper letters, 14 selfloop transitions, 4 changer transitions 0/207 dead transitions. [2022-11-18 20:35:30,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 207 transitions, 638 flow [2022-11-18 20:35:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:35:30,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:35:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1051 transitions. [2022-11-18 20:35:30,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8628899835796388 [2022-11-18 20:35:30,750 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1051 transitions. [2022-11-18 20:35:30,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1051 transitions. [2022-11-18 20:35:30,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:30,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1051 transitions. [2022-11-18 20:35:30,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.16666666666666) internal successors, (1051), 6 states have internal predecessors, (1051), 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) [2022-11-18 20:35:30,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 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) [2022-11-18 20:35:30,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 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) [2022-11-18 20:35:30,758 INFO L175 Difference]: Start difference. First operand has 192 places, 208 transitions, 604 flow. Second operand 6 states and 1051 transitions. [2022-11-18 20:35:30,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 207 transitions, 638 flow [2022-11-18 20:35:30,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 207 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:35:30,765 INFO L231 Difference]: Finished difference. Result has 194 places, 207 transitions, 600 flow [2022-11-18 20:35:30,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=194, PETRI_TRANSITIONS=207} [2022-11-18 20:35:30,766 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, 10 predicate places. [2022-11-18 20:35:30,766 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 207 transitions, 600 flow [2022-11-18 20:35:30,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 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) [2022-11-18 20:35:30,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:30,767 INFO L209 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] [2022-11-18 20:35:30,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:35:30,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:30,769 INFO L85 PathProgramCache]: Analyzing trace with hash -257232595, now seen corresponding path program 1 times [2022-11-18 20:35:30,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:30,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716662082] [2022-11-18 20:35:30,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:30,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:30,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:30,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716662082] [2022-11-18 20:35:30,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716662082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:30,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:30,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:30,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584390384] [2022-11-18 20:35:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:30,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:30,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:30,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:30,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:30,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2022-11-18 20:35:30,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 207 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2022-11-18 20:35:30,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:30,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2022-11-18 20:35:30,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:31,355 INFO L130 PetriNetUnfolder]: 369/2985 cut-off events. [2022-11-18 20:35:31,355 INFO L131 PetriNetUnfolder]: For 190/203 co-relation queries the response was YES. [2022-11-18 20:35:31,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4370 conditions, 2985 events. 369/2985 cut-off events. For 190/203 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 30049 event pairs, 56 based on Foata normal form. 2/2452 useless extension candidates. Maximal degree in co-relation 4231. Up to 231 conditions per place. [2022-11-18 20:35:31,392 INFO L137 encePairwiseOnDemand]: 197/203 looper letters, 23 selfloop transitions, 6 changer transitions 0/216 dead transitions. [2022-11-18 20:35:31,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 216 transitions, 683 flow [2022-11-18 20:35:31,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:31,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2022-11-18 20:35:31,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2022-11-18 20:35:31,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2022-11-18 20:35:31,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2022-11-18 20:35:31,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:31,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2022-11-18 20:35:31,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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) [2022-11-18 20:35:31,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:31,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:31,400 INFO L175 Difference]: Start difference. First operand has 194 places, 207 transitions, 600 flow. Second operand 3 states and 553 transitions. [2022-11-18 20:35:31,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 216 transitions, 683 flow [2022-11-18 20:35:31,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 216 transitions, 676 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:35:31,410 INFO L231 Difference]: Finished difference. Result has 194 places, 212 transitions, 643 flow [2022-11-18 20:35:31,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=643, PETRI_PLACES=194, PETRI_TRANSITIONS=212} [2022-11-18 20:35:31,416 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, 10 predicate places. [2022-11-18 20:35:31,416 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 212 transitions, 643 flow [2022-11-18 20:35:31,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2022-11-18 20:35:31,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:31,417 INFO L209 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] [2022-11-18 20:35:31,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:35:31,417 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:31,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:31,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1698170908, now seen corresponding path program 1 times [2022-11-18 20:35:31,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:31,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691193441] [2022-11-18 20:35:31,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:31,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:35:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:35:31,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:35:31,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691193441] [2022-11-18 20:35:31,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691193441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:35:31,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:35:31,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:35:31,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174376560] [2022-11-18 20:35:31,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:35:31,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:35:31,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:35:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:35:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:35:31,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 203 [2022-11-18 20:35:31,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 212 transitions, 643 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2022-11-18 20:35:31,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:35:31,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 203 [2022-11-18 20:35:31,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:35:31,750 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([482] L709-->L709-1: Formula: (= |v_#race~turn~0_1| 0) InVars {} OutVars{#race~turn~0=|v_#race~turn~0_1|} AuxVars[] AssignedVars[#race~turn~0][145], [Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), thr2Thread1of1ForFork1InUse, 44#L702-2true, 145#L725-4true, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 151#L709-1true, Black: 199#true, Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2022-11-18 20:35:31,751 INFO L383 tUnfolder$Statistics]: this new event has 78 ancestors and is cut-off event [2022-11-18 20:35:31,751 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,751 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,751 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,766 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L702-1-->L702-2: Formula: (= |v_thr1Thread1of1ForFork0_#t~nondet7_3| |v_#race~turn~0_10|) InVars {thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} OutVars{#race~turn~0=|v_#race~turn~0_10|, thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} AuxVars[] AssignedVars[#race~turn~0][109], [Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), thr2Thread1of1ForFork1InUse, 44#L702-2true, 145#L725-4true, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 201#(= |#race~turn~0| 0), 151#L709-1true, Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2022-11-18 20:35:31,766 INFO L383 tUnfolder$Statistics]: this new event has 78 ancestors and is cut-off event [2022-11-18 20:35:31,767 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,767 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,767 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,782 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L702-1-->L702-2: Formula: (= |v_thr1Thread1of1ForFork0_#t~nondet7_3| |v_#race~turn~0_10|) InVars {thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} OutVars{#race~turn~0=|v_#race~turn~0_10|, thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} AuxVars[] AssignedVars[#race~turn~0][109], [130#L709-2true, Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), thr2Thread1of1ForFork1InUse, 44#L702-2true, 145#L725-4true, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 201#(= |#race~turn~0| 0), Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2022-11-18 20:35:31,782 INFO L383 tUnfolder$Statistics]: this new event has 79 ancestors and is cut-off event [2022-11-18 20:35:31,783 INFO L386 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-11-18 20:35:31,783 INFO L386 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-11-18 20:35:31,783 INFO L386 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-11-18 20:35:31,783 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([489] L709-2-->L709-4: Formula: (= v_~turn~0_4 1) InVars {~turn~0=v_~turn~0_4} OutVars{~turn~0=v_~turn~0_4} AuxVars[] AssignedVars[][148], [Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), thr2Thread1of1ForFork1InUse, 32#L709-4true, 29#L702true, 145#L725-4true, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 199#true, Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2022-11-18 20:35:31,784 INFO L383 tUnfolder$Statistics]: this new event has 78 ancestors and is cut-off event [2022-11-18 20:35:31,784 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,784 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,784 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-18 20:35:31,786 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([585] L703-2-->L703-3: Formula: (= |v_thr1Thread1of1ForFork0_#t~nondet8_3| |v_#race~flag1~0_7|) InVars {thr1Thread1of1ForFork0_#t~nondet8=|v_thr1Thread1of1ForFork0_#t~nondet8_3|} OutVars{thr1Thread1of1ForFork0_#t~nondet8=|v_thr1Thread1of1ForFork0_#t~nondet8_3|, #race~flag1~0=|v_#race~flag1~0_7|} AuxVars[] AssignedVars[#race~flag1~0][154], [Black: 220#true, 205#true, thr2Thread1of1ForFork1InUse, 145#L725-4true, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 201#(= |#race~turn~0| 0), Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 167#L708-2true, 253#(= |#race~x~0| 0), 124#L703-3true, Black: 207#(= ~turn~0 0), Black: 247#(= |#race~flag1~0| 0), 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2022-11-18 20:35:31,786 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-18 20:35:31,787 INFO L386 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-11-18 20:35:31,787 INFO L386 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-11-18 20:35:31,787 INFO L386 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-11-18 20:35:32,040 INFO L130 PetriNetUnfolder]: 463/3316 cut-off events. [2022-11-18 20:35:32,040 INFO L131 PetriNetUnfolder]: For 443/481 co-relation queries the response was YES. [2022-11-18 20:35:32,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5222 conditions, 3316 events. 463/3316 cut-off events. For 443/481 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 34259 event pairs, 90 based on Foata normal form. 1/2758 useless extension candidates. Maximal degree in co-relation 4229. Up to 293 conditions per place. [2022-11-18 20:35:32,080 INFO L137 encePairwiseOnDemand]: 195/203 looper letters, 24 selfloop transitions, 7 changer transitions 0/225 dead transitions. [2022-11-18 20:35:32,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 225 transitions, 746 flow [2022-11-18 20:35:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:35:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:35:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2022-11-18 20:35:32,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9244663382594417 [2022-11-18 20:35:32,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 563 transitions. [2022-11-18 20:35:32,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 563 transitions. [2022-11-18 20:35:32,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:35:32,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 563 transitions. [2022-11-18 20:35:32,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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) [2022-11-18 20:35:32,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:32,088 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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) [2022-11-18 20:35:32,088 INFO L175 Difference]: Start difference. First operand has 194 places, 212 transitions, 643 flow. Second operand 3 states and 563 transitions. [2022-11-18 20:35:32,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 225 transitions, 746 flow [2022-11-18 20:35:32,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 225 transitions, 734 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:35:32,097 INFO L231 Difference]: Finished difference. Result has 196 places, 218 transitions, 693 flow [2022-11-18 20:35:32,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=196, PETRI_TRANSITIONS=218} [2022-11-18 20:35:32,098 INFO L288 CegarLoopForPetriNet]: 184 programPoint places, 12 predicate places. [2022-11-18 20:35:32,098 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 218 transitions, 693 flow [2022-11-18 20:35:32,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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) [2022-11-18 20:35:32,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:35:32,099 INFO L209 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] [2022-11-18 20:35:32,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:35:32,100 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-18 20:35:32,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:35:32,101 INFO L85 PathProgramCache]: Analyzing trace with hash -920502465, now seen corresponding path program 1 times [2022-11-18 20:35:32,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:35:32,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645880842] [2022-11-18 20:35:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:35:32,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:35:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:32,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:35:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:35:32,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:35:32,153 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:35:32,154 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-18 20:35:32,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-18 20:35:32,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-18 20:35:32,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-18 20:35:32,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-18 20:35:32,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-18 20:35:32,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-18 20:35:32,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-18 20:35:32,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-18 20:35:32,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-18 20:35:32,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-18 20:35:32,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-18 20:35:32,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-18 20:35:32,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-18 20:35:32,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-18 20:35:32,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-18 20:35:32,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2022-11-18 20:35:32,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2022-11-18 20:35:32,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-18 20:35:32,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-18 20:35:32,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-18 20:35:32,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-18 20:35:32,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-18 20:35:32,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-18 20:35:32,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-18 20:35:32,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 46 remaining) [2022-11-18 20:35:32,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 46 remaining) [2022-11-18 20:35:32,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-18 20:35:32,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-18 20:35:32,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-18 20:35:32,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-18 20:35:32,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-18 20:35:32,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-18 20:35:32,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-18 20:35:32,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-18 20:35:32,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-18 20:35:32,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-18 20:35:32,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-18 20:35:32,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-18 20:35:32,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-18 20:35:32,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-18 20:35:32,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-18 20:35:32,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-18 20:35:32,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-18 20:35:32,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-18 20:35:32,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-18 20:35:32,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:35:32,168 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:35:32,176 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:35:32,176 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:35:32,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:35:32 BasicIcfg [2022-11-18 20:35:32,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:35:32,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:35:32,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:35:32,223 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:35:32,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:35:25" (3/4) ... [2022-11-18 20:35:32,226 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:35:32,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:35:32,227 INFO L158 Benchmark]: Toolchain (without parser) took 7724.90ms. Allocated memory was 117.4MB in the beginning and 232.8MB in the end (delta: 115.3MB). Free memory was 72.9MB in the beginning and 74.5MB in the end (delta: -1.7MB). Peak memory consumption was 114.6MB. Max. memory is 16.1GB. [2022-11-18 20:35:32,228 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:35:32,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.34ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 80.5MB in the end (delta: -7.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-18 20:35:32,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.78ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:35:32,229 INFO L158 Benchmark]: Boogie Preprocessor took 35.57ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:35:32,229 INFO L158 Benchmark]: RCFGBuilder took 748.97ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 58.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:35:32,230 INFO L158 Benchmark]: TraceAbstraction took 6221.26ms. Allocated memory was 117.4MB in the beginning and 232.8MB in the end (delta: 115.3MB). Free memory was 57.6MB in the beginning and 74.5MB in the end (delta: -17.0MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2022-11-18 20:35:32,230 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 232.8MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:35:32,232 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.34ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 80.5MB in the end (delta: -7.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.78ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.57ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 748.97ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 58.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6221.26ms. Allocated memory was 117.4MB in the beginning and 232.8MB in the end (delta: 115.3MB). Free memory was 57.6MB in the beginning and 74.5MB in the end (delta: -17.0MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 232.8MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L690] 0 int x; VAL [x=0] [L688] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0, x=0] [L689] 0 int turn; VAL [flag1=0, flag2=0, turn=0, x=0] [L722] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 0<=turn VAL [flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 0<=turn && turn<=1 VAL [0<=turn && turn<=1=1, flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 turn<=1 VAL [0<=turn && turn<=1=1, flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 0<=turn && turn<=1 VAL [0<=turn && turn<=1=1, flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, flag1=0, flag2=0, turn=0, x=0] [L723] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L724] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [707] and C: flag2 >= 1 [693] - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: 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: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: 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: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: 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: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: 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: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 308 locations, 46 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: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 127 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=9, InterpolantAutomatonStates: 31, 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, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 445 NumberOfCodeBlocks, 445 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 382 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2022-11-18 20:35:32,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae5039f5-6fb0-4ee4-9997-3ab1448ce813/bin/uautomizer-TMbwUNV5ro/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