./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:28:08,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:28:09,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:28:09,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:28:09,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:28:09,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:28:09,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:28:09,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:28:09,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:28:09,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:28:09,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:28:09,073 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:28:09,073 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:28:09,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:28:09,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:28:09,075 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:28:09,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:28:09,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:28:09,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:28:09,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:28:09,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:28:09,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:28:09,079 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:28:09,079 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:28:09,080 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:28:09,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:28:09,081 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:28:09,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:28:09,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:28:09,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:28:09,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:09,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:28:09,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:28:09,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:28:09,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:28:09,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:28:09,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:28:09,085 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:28:09,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:28:09,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:28:09,085 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:28:09,086 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2023-11-12 02:28:09,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:28:09,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:28:09,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:28:09,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:28:09,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:28:09,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2023-11-12 02:28:12,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:28:13,186 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:28:13,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2023-11-12 02:28:13,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/data/2e6ec074b/95a923b629014ea6b4893f7eb0a757b1/FLAG667d3dba6 [2023-11-12 02:28:13,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/data/2e6ec074b/95a923b629014ea6b4893f7eb0a757b1 [2023-11-12 02:28:13,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:28:13,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:28:13,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:13,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:28:13,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:28:13,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:13,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd18322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13, skipping insertion in model container [2023-11-12 02:28:13,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:13,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:28:13,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:13,743 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:28:13,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:28:13,920 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:28:13,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13 WrapperNode [2023-11-12 02:28:13,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:28:13,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:13,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:28:13,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:28:13,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:13,971 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,019 INFO L138 Inliner]: procedures = 170, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-11-12 02:28:14,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:28:14,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:28:14,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:28:14,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:28:14,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:28:14,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:28:14,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:28:14,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:28:14,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (1/1) ... [2023-11-12 02:28:14,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:28:14,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:14,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:28:14,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:28:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:28:14,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:28:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:28:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:28:14,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:28:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-12 02:28:14,245 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-12 02:28:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:28:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:28:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:28:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:28:14,248 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:28:14,452 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:28:14,455 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:28:14,783 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:28:14,793 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:28:14,793 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-12 02:28:14,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:14 BoogieIcfgContainer [2023-11-12 02:28:14,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:28:14,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:28:14,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:28:14,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:28:14,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:28:13" (1/3) ... [2023-11-12 02:28:14,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623f05fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:14, skipping insertion in model container [2023-11-12 02:28:14,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:28:13" (2/3) ... [2023-11-12 02:28:14,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623f05fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:28:14, skipping insertion in model container [2023-11-12 02:28:14,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:14" (3/3) ... [2023-11-12 02:28:14,808 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-11-12 02:28:14,819 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:28:14,831 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:28:14,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:28:14,832 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:28:15,002 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 02:28:15,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 151 transitions, 309 flow [2023-11-12 02:28:15,133 INFO L124 PetriNetUnfolderBase]: 10/150 cut-off events. [2023-11-12 02:28:15,133 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:28:15,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 150 events. 10/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2023-11-12 02:28:15,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 151 transitions, 309 flow [2023-11-12 02:28:15,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 140 transitions, 283 flow [2023-11-12 02:28:15,154 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:28:15,166 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 140 transitions, 283 flow [2023-11-12 02:28:15,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 140 transitions, 283 flow [2023-11-12 02:28:15,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 140 transitions, 283 flow [2023-11-12 02:28:15,213 INFO L124 PetriNetUnfolderBase]: 10/140 cut-off events. [2023-11-12 02:28:15,214 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:28:15,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 140 events. 10/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 260 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2023-11-12 02:28:15,220 INFO L119 LiptonReduction]: Number of co-enabled transitions 4880 [2023-11-12 02:28:19,732 INFO L134 LiptonReduction]: Checked pairs total: 24720 [2023-11-12 02:28:19,733 INFO L136 LiptonReduction]: Total number of compositions: 96 [2023-11-12 02:28:19,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:28:19,756 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49e64b49, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:28:19,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-12 02:28:19,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:28:19,767 INFO L124 PetriNetUnfolderBase]: 4/35 cut-off events. [2023-11-12 02:28:19,767 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:28:19,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:19,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:19,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:19,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash 258836220, now seen corresponding path program 1 times [2023-11-12 02:28:19,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:19,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108437485] [2023-11-12 02:28:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:19,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:20,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:20,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108437485] [2023-11-12 02:28:20,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108437485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:20,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:20,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:20,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096771225] [2023-11-12 02:28:20,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:20,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:20,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:20,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:20,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:21,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 247 [2023-11-12 02:28:21,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:21,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:21,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 247 [2023-11-12 02:28:21,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:21,539 INFO L124 PetriNetUnfolderBase]: 135/370 cut-off events. [2023-11-12 02:28:21,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:28:21,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 370 events. 135/370 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1531 event pairs, 80 based on Foata normal form. 34/399 useless extension candidates. Maximal degree in co-relation 670. Up to 184 conditions per place. [2023-11-12 02:28:21,551 INFO L140 encePairwiseOnDemand]: 226/247 looper letters, 44 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2023-11-12 02:28:21,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 71 transitions, 253 flow [2023-11-12 02:28:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:28:21,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:28:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2023-11-12 02:28:21,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2023-11-12 02:28:21,586 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2023-11-12 02:28:21,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2023-11-12 02:28:21,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:21,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2023-11-12 02:28:21,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:21,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:21,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:21,615 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 127 flow. Second operand 6 states and 767 transitions. [2023-11-12 02:28:21,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 71 transitions, 253 flow [2023-11-12 02:28:21,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:28:21,623 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-11-12 02:28:21,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2023-11-12 02:28:21,630 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-11-12 02:28:21,631 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-11-12 02:28:21,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:21,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:21,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:21,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:28:21,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:21,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:21,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1569150679, now seen corresponding path program 1 times [2023-11-12 02:28:21,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:21,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569557297] [2023-11-12 02:28:21,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:21,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:21,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:21,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569557297] [2023-11-12 02:28:21,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569557297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:21,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:21,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:21,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074538078] [2023-11-12 02:28:21,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:21,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:21,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:21,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:21,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:22,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 247 [2023-11-12 02:28:22,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:22,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:22,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 247 [2023-11-12 02:28:22,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:22,785 INFO L124 PetriNetUnfolderBase]: 284/847 cut-off events. [2023-11-12 02:28:22,785 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-12 02:28:22,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 847 events. 284/847 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4499 event pairs, 48 based on Foata normal form. 0/808 useless extension candidates. Maximal degree in co-relation 1561. Up to 377 conditions per place. [2023-11-12 02:28:22,797 INFO L140 encePairwiseOnDemand]: 233/247 looper letters, 81 selfloop transitions, 37 changer transitions 0/137 dead transitions. [2023-11-12 02:28:22,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 137 transitions, 564 flow [2023-11-12 02:28:22,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:28:22,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:28:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 839 transitions. [2023-11-12 02:28:22,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661268556005398 [2023-11-12 02:28:22,803 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 839 transitions. [2023-11-12 02:28:22,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 839 transitions. [2023-11-12 02:28:22,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:22,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 839 transitions. [2023-11-12 02:28:22,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:22,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:22,815 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:22,816 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 839 transitions. [2023-11-12 02:28:22,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 137 transitions, 564 flow [2023-11-12 02:28:22,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 137 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:28:22,823 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-11-12 02:28:22,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=64, PETRI_TRANSITIONS=87} [2023-11-12 02:28:22,825 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-11-12 02:28:22,825 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-11-12 02:28:22,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:22,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:22,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:22,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:28:22,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:22,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1412678409, now seen corresponding path program 1 times [2023-11-12 02:28:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244217270] [2023-11-12 02:28:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:23,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:23,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244217270] [2023-11-12 02:28:23,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244217270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:23,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:23,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:23,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489104005] [2023-11-12 02:28:23,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:23,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:23,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:23,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:23,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:23,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2023-11-12 02:28:23,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:23,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:23,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2023-11-12 02:28:23,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:23,979 INFO L124 PetriNetUnfolderBase]: 624/1438 cut-off events. [2023-11-12 02:28:23,979 INFO L125 PetriNetUnfolderBase]: For 549/564 co-relation queries the response was YES. [2023-11-12 02:28:23,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3504 conditions, 1438 events. 624/1438 cut-off events. For 549/564 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7604 event pairs, 341 based on Foata normal form. 0/1390 useless extension candidates. Maximal degree in co-relation 3491. Up to 1190 conditions per place. [2023-11-12 02:28:23,993 INFO L140 encePairwiseOnDemand]: 232/247 looper letters, 95 selfloop transitions, 48 changer transitions 0/151 dead transitions. [2023-11-12 02:28:23,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 151 transitions, 852 flow [2023-11-12 02:28:23,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:28:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:28:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2023-11-12 02:28:23,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973009446693657 [2023-11-12 02:28:23,997 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2023-11-12 02:28:23,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2023-11-12 02:28:23,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:23,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2023-11-12 02:28:24,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:24,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:24,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:24,007 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 737 transitions. [2023-11-12 02:28:24,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 151 transitions, 852 flow [2023-11-12 02:28:24,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 151 transitions, 852 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:28:24,018 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 738 flow [2023-11-12 02:28:24,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=738, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2023-11-12 02:28:24,019 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2023-11-12 02:28:24,019 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 738 flow [2023-11-12 02:28:24,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:24,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:24,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:24,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:28:24,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:24,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:24,022 INFO L85 PathProgramCache]: Analyzing trace with hash 937678087, now seen corresponding path program 1 times [2023-11-12 02:28:24,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:24,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480067540] [2023-11-12 02:28:24,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:24,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:24,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:24,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480067540] [2023-11-12 02:28:24,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480067540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:24,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:24,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:24,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26362407] [2023-11-12 02:28:24,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:24,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:24,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:24,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:24,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 247 [2023-11-12 02:28:24,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 738 flow. Second operand has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:24,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:24,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 247 [2023-11-12 02:28:24,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:25,212 INFO L124 PetriNetUnfolderBase]: 540/1355 cut-off events. [2023-11-12 02:28:25,212 INFO L125 PetriNetUnfolderBase]: For 1014/1040 co-relation queries the response was YES. [2023-11-12 02:28:25,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3886 conditions, 1355 events. 540/1355 cut-off events. For 1014/1040 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7690 event pairs, 127 based on Foata normal form. 2/1325 useless extension candidates. Maximal degree in co-relation 3868. Up to 765 conditions per place. [2023-11-12 02:28:25,228 INFO L140 encePairwiseOnDemand]: 233/247 looper letters, 126 selfloop transitions, 75 changer transitions 12/253 dead transitions. [2023-11-12 02:28:25,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 253 transitions, 1736 flow [2023-11-12 02:28:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:28:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:28:25,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 838 transitions. [2023-11-12 02:28:25,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5654520917678812 [2023-11-12 02:28:25,233 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 838 transitions. [2023-11-12 02:28:25,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 838 transitions. [2023-11-12 02:28:25,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:25,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 838 transitions. [2023-11-12 02:28:25,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,242 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,242 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 738 flow. Second operand 6 states and 838 transitions. [2023-11-12 02:28:25,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 253 transitions, 1736 flow [2023-11-12 02:28:25,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 253 transitions, 1718 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-12 02:28:25,260 INFO L231 Difference]: Finished difference. Result has 84 places, 200 transitions, 1496 flow [2023-11-12 02:28:25,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1496, PETRI_PLACES=84, PETRI_TRANSITIONS=200} [2023-11-12 02:28:25,261 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2023-11-12 02:28:25,262 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 200 transitions, 1496 flow [2023-11-12 02:28:25,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:25,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:25,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:28:25,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:25,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:25,264 INFO L85 PathProgramCache]: Analyzing trace with hash -813368446, now seen corresponding path program 1 times [2023-11-12 02:28:25,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:25,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834009054] [2023-11-12 02:28:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:25,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:25,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834009054] [2023-11-12 02:28:25,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834009054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:25,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:25,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:28:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725640543] [2023-11-12 02:28:25,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:25,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:25,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:25,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:25,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:25,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 247 [2023-11-12 02:28:25,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 200 transitions, 1496 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:25,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 247 [2023-11-12 02:28:25,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:25,669 INFO L124 PetriNetUnfolderBase]: 278/906 cut-off events. [2023-11-12 02:28:25,669 INFO L125 PetriNetUnfolderBase]: For 1339/1387 co-relation queries the response was YES. [2023-11-12 02:28:25,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 906 events. 278/906 cut-off events. For 1339/1387 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5470 event pairs, 25 based on Foata normal form. 9/907 useless extension candidates. Maximal degree in co-relation 2879. Up to 234 conditions per place. [2023-11-12 02:28:25,682 INFO L140 encePairwiseOnDemand]: 240/247 looper letters, 54 selfloop transitions, 7 changer transitions 5/176 dead transitions. [2023-11-12 02:28:25,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 176 transitions, 1328 flow [2023-11-12 02:28:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:28:25,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2023-11-12 02:28:25,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5802968960863698 [2023-11-12 02:28:25,685 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 430 transitions. [2023-11-12 02:28:25,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions. [2023-11-12 02:28:25,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:25,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions. [2023-11-12 02:28:25,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,690 INFO L175 Difference]: Start difference. First operand has 84 places, 200 transitions, 1496 flow. Second operand 3 states and 430 transitions. [2023-11-12 02:28:25,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 176 transitions, 1328 flow [2023-11-12 02:28:25,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 176 transitions, 1254 flow, removed 37 selfloop flow, removed 0 redundant places. [2023-11-12 02:28:25,717 INFO L231 Difference]: Finished difference. Result has 87 places, 155 transitions, 1031 flow [2023-11-12 02:28:25,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1031, PETRI_PLACES=87, PETRI_TRANSITIONS=155} [2023-11-12 02:28:25,722 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 30 predicate places. [2023-11-12 02:28:25,722 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 155 transitions, 1031 flow [2023-11-12 02:28:25,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:25,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:25,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:25,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:28:25,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:25,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:25,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1677448320, now seen corresponding path program 1 times [2023-11-12 02:28:25,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:25,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095328458] [2023-11-12 02:28:25,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:25,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:26,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:26,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:26,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095328458] [2023-11-12 02:28:26,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095328458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:26,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:26,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:28:26,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859305601] [2023-11-12 02:28:26,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:26,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:26,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:26,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:26,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:27,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 247 [2023-11-12 02:28:27,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 155 transitions, 1031 flow. Second operand has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:27,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:27,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 247 [2023-11-12 02:28:27,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:27,853 INFO L124 PetriNetUnfolderBase]: 536/1342 cut-off events. [2023-11-12 02:28:27,853 INFO L125 PetriNetUnfolderBase]: For 1592/1594 co-relation queries the response was YES. [2023-11-12 02:28:27,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4835 conditions, 1342 events. 536/1342 cut-off events. For 1592/1594 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7624 event pairs, 236 based on Foata normal form. 18/1359 useless extension candidates. Maximal degree in co-relation 4810. Up to 927 conditions per place. [2023-11-12 02:28:27,873 INFO L140 encePairwiseOnDemand]: 238/247 looper letters, 151 selfloop transitions, 34 changer transitions 0/194 dead transitions. [2023-11-12 02:28:27,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 194 transitions, 1655 flow [2023-11-12 02:28:27,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:27,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:28:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 976 transitions. [2023-11-12 02:28:27,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43904633378317587 [2023-11-12 02:28:27,880 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 976 transitions. [2023-11-12 02:28:27,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 976 transitions. [2023-11-12 02:28:27,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:27,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 976 transitions. [2023-11-12 02:28:27,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.44444444444444) internal successors, (976), 9 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:27,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:27,894 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:27,894 INFO L175 Difference]: Start difference. First operand has 87 places, 155 transitions, 1031 flow. Second operand 9 states and 976 transitions. [2023-11-12 02:28:27,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 194 transitions, 1655 flow [2023-11-12 02:28:27,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 194 transitions, 1642 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:28:27,920 INFO L231 Difference]: Finished difference. Result has 93 places, 154 transitions, 1088 flow [2023-11-12 02:28:27,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1088, PETRI_PLACES=93, PETRI_TRANSITIONS=154} [2023-11-12 02:28:27,922 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 36 predicate places. [2023-11-12 02:28:27,922 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 154 transitions, 1088 flow [2023-11-12 02:28:27,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:27,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:27,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:27,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:28:27,924 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:27,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:27,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1473086620, now seen corresponding path program 1 times [2023-11-12 02:28:27,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:27,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796539546] [2023-11-12 02:28:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:27,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:28,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796539546] [2023-11-12 02:28:28,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796539546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:28,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:28,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:28:28,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254313661] [2023-11-12 02:28:28,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:28,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:28,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:28,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:28,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:29,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-12 02:28:29,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 154 transitions, 1088 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:29,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:29,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-12 02:28:29,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:30,334 INFO L124 PetriNetUnfolderBase]: 532/1366 cut-off events. [2023-11-12 02:28:30,334 INFO L125 PetriNetUnfolderBase]: For 1838/1842 co-relation queries the response was YES. [2023-11-12 02:28:30,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5089 conditions, 1366 events. 532/1366 cut-off events. For 1838/1842 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8101 event pairs, 60 based on Foata normal form. 31/1391 useless extension candidates. Maximal degree in co-relation 5062. Up to 462 conditions per place. [2023-11-12 02:28:30,355 INFO L140 encePairwiseOnDemand]: 238/247 looper letters, 222 selfloop transitions, 33 changer transitions 12/287 dead transitions. [2023-11-12 02:28:30,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 287 transitions, 2444 flow [2023-11-12 02:28:30,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:28:30,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:28:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1295 transitions. [2023-11-12 02:28:30,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5242914979757085 [2023-11-12 02:28:30,362 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1295 transitions. [2023-11-12 02:28:30,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1295 transitions. [2023-11-12 02:28:30,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:30,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1295 transitions. [2023-11-12 02:28:30,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.5) internal successors, (1295), 10 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:30,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:30,378 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:30,378 INFO L175 Difference]: Start difference. First operand has 93 places, 154 transitions, 1088 flow. Second operand 10 states and 1295 transitions. [2023-11-12 02:28:30,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 287 transitions, 2444 flow [2023-11-12 02:28:30,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 287 transitions, 2290 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-12 02:28:30,405 INFO L231 Difference]: Finished difference. Result has 99 places, 177 transitions, 1334 flow [2023-11-12 02:28:30,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1334, PETRI_PLACES=99, PETRI_TRANSITIONS=177} [2023-11-12 02:28:30,407 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 42 predicate places. [2023-11-12 02:28:30,407 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 177 transitions, 1334 flow [2023-11-12 02:28:30,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:30,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:30,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:30,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:28:30,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:30,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:30,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1649395550, now seen corresponding path program 2 times [2023-11-12 02:28:30,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:30,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346245677] [2023-11-12 02:28:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:30,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:31,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:31,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346245677] [2023-11-12 02:28:31,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346245677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:31,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:31,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:28:31,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937926500] [2023-11-12 02:28:31,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:31,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:31,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:31,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:31,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:32,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-12 02:28:32,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 177 transitions, 1334 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:32,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:32,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-12 02:28:32,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:33,068 INFO L124 PetriNetUnfolderBase]: 549/1445 cut-off events. [2023-11-12 02:28:33,068 INFO L125 PetriNetUnfolderBase]: For 3034/3041 co-relation queries the response was YES. [2023-11-12 02:28:33,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5917 conditions, 1445 events. 549/1445 cut-off events. For 3034/3041 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8911 event pairs, 86 based on Foata normal form. 17/1455 useless extension candidates. Maximal degree in co-relation 5885. Up to 757 conditions per place. [2023-11-12 02:28:33,090 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 159 selfloop transitions, 72 changer transitions 15/266 dead transitions. [2023-11-12 02:28:33,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 266 transitions, 2258 flow [2023-11-12 02:28:33,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:28:33,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1191 transitions. [2023-11-12 02:28:33,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5357624831309041 [2023-11-12 02:28:33,097 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1191 transitions. [2023-11-12 02:28:33,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1191 transitions. [2023-11-12 02:28:33,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:33,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1191 transitions. [2023-11-12 02:28:33,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 132.33333333333334) internal successors, (1191), 9 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:33,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:33,111 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:33,112 INFO L175 Difference]: Start difference. First operand has 99 places, 177 transitions, 1334 flow. Second operand 9 states and 1191 transitions. [2023-11-12 02:28:33,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 266 transitions, 2258 flow [2023-11-12 02:28:33,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 266 transitions, 2248 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:28:33,158 INFO L231 Difference]: Finished difference. Result has 107 places, 187 transitions, 1670 flow [2023-11-12 02:28:33,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1670, PETRI_PLACES=107, PETRI_TRANSITIONS=187} [2023-11-12 02:28:33,161 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 50 predicate places. [2023-11-12 02:28:33,161 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 187 transitions, 1670 flow [2023-11-12 02:28:33,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:33,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:33,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:33,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:28:33,164 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:33,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1717416484, now seen corresponding path program 3 times [2023-11-12 02:28:33,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:33,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829352416] [2023-11-12 02:28:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:33,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:33,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:33,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:33,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829352416] [2023-11-12 02:28:33,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829352416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:33,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:33,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:28:33,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108155767] [2023-11-12 02:28:33,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:33,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:33,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:33,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:33,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:34,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-12 02:28:34,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 187 transitions, 1670 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:34,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:34,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-12 02:28:34,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:35,777 INFO L124 PetriNetUnfolderBase]: 614/1652 cut-off events. [2023-11-12 02:28:35,777 INFO L125 PetriNetUnfolderBase]: For 5173/5178 co-relation queries the response was YES. [2023-11-12 02:28:35,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7322 conditions, 1652 events. 614/1652 cut-off events. For 5173/5178 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10683 event pairs, 78 based on Foata normal form. 22/1663 useless extension candidates. Maximal degree in co-relation 7287. Up to 579 conditions per place. [2023-11-12 02:28:35,803 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 222 selfloop transitions, 98 changer transitions 16/356 dead transitions. [2023-11-12 02:28:35,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 356 transitions, 3503 flow [2023-11-12 02:28:35,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:28:35,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:28:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1331 transitions. [2023-11-12 02:28:35,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5388663967611336 [2023-11-12 02:28:35,810 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1331 transitions. [2023-11-12 02:28:35,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1331 transitions. [2023-11-12 02:28:35,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:35,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1331 transitions. [2023-11-12 02:28:35,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.1) internal successors, (1331), 10 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:35,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:35,828 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:35,828 INFO L175 Difference]: Start difference. First operand has 107 places, 187 transitions, 1670 flow. Second operand 10 states and 1331 transitions. [2023-11-12 02:28:35,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 356 transitions, 3503 flow [2023-11-12 02:28:35,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 356 transitions, 3430 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:28:35,882 INFO L231 Difference]: Finished difference. Result has 117 places, 229 transitions, 2488 flow [2023-11-12 02:28:35,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1610, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2488, PETRI_PLACES=117, PETRI_TRANSITIONS=229} [2023-11-12 02:28:35,884 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 60 predicate places. [2023-11-12 02:28:35,884 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 229 transitions, 2488 flow [2023-11-12 02:28:35,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:35,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:35,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:35,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:28:35,888 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:35,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:35,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1491060456, now seen corresponding path program 4 times [2023-11-12 02:28:35,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:35,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495054951] [2023-11-12 02:28:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:35,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:36,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:36,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495054951] [2023-11-12 02:28:36,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495054951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:36,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:36,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:28:36,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967432561] [2023-11-12 02:28:36,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:36,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:36,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:36,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:37,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-12 02:28:37,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 229 transitions, 2488 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:37,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:37,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-12 02:28:37,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:38,613 INFO L124 PetriNetUnfolderBase]: 655/1804 cut-off events. [2023-11-12 02:28:38,613 INFO L125 PetriNetUnfolderBase]: For 8970/8980 co-relation queries the response was YES. [2023-11-12 02:28:38,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8624 conditions, 1804 events. 655/1804 cut-off events. For 8970/8980 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 12097 event pairs, 95 based on Foata normal form. 22/1818 useless extension candidates. Maximal degree in co-relation 8582. Up to 881 conditions per place. [2023-11-12 02:28:38,638 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 202 selfloop transitions, 109 changer transitions 18/349 dead transitions. [2023-11-12 02:28:38,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 349 transitions, 3874 flow [2023-11-12 02:28:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:28:38,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:28:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1328 transitions. [2023-11-12 02:28:38,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5376518218623482 [2023-11-12 02:28:38,648 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1328 transitions. [2023-11-12 02:28:38,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1328 transitions. [2023-11-12 02:28:38,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:38,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1328 transitions. [2023-11-12 02:28:38,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.8) internal successors, (1328), 10 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:38,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:38,662 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:38,663 INFO L175 Difference]: Start difference. First operand has 117 places, 229 transitions, 2488 flow. Second operand 10 states and 1328 transitions. [2023-11-12 02:28:38,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 349 transitions, 3874 flow [2023-11-12 02:28:38,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 349 transitions, 3825 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-11-12 02:28:38,746 INFO L231 Difference]: Finished difference. Result has 129 places, 249 transitions, 3150 flow [2023-11-12 02:28:38,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2439, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3150, PETRI_PLACES=129, PETRI_TRANSITIONS=249} [2023-11-12 02:28:38,748 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 72 predicate places. [2023-11-12 02:28:38,748 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 249 transitions, 3150 flow [2023-11-12 02:28:38,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:38,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:38,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:38,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:28:38,750 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:38,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:38,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1705655784, now seen corresponding path program 5 times [2023-11-12 02:28:38,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:38,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908084905] [2023-11-12 02:28:38,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:38,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:39,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:39,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908084905] [2023-11-12 02:28:39,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908084905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:39,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:39,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:28:39,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509051555] [2023-11-12 02:28:39,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:39,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:39,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:39,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:39,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:40,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2023-11-12 02:28:40,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 249 transitions, 3150 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:40,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:40,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2023-11-12 02:28:40,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:41,560 INFO L124 PetriNetUnfolderBase]: 633/1808 cut-off events. [2023-11-12 02:28:41,561 INFO L125 PetriNetUnfolderBase]: For 11585/11595 co-relation queries the response was YES. [2023-11-12 02:28:41,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9237 conditions, 1808 events. 633/1808 cut-off events. For 11585/11595 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12474 event pairs, 72 based on Foata normal form. 22/1821 useless extension candidates. Maximal degree in co-relation 9189. Up to 745 conditions per place. [2023-11-12 02:28:41,595 INFO L140 encePairwiseOnDemand]: 230/247 looper letters, 227 selfloop transitions, 114 changer transitions 19/380 dead transitions. [2023-11-12 02:28:41,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 380 transitions, 4746 flow [2023-11-12 02:28:41,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:28:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:28:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1329 transitions. [2023-11-12 02:28:41,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5380566801619433 [2023-11-12 02:28:41,604 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1329 transitions. [2023-11-12 02:28:41,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1329 transitions. [2023-11-12 02:28:41,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:41,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1329 transitions. [2023-11-12 02:28:41,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.9) internal successors, (1329), 10 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:41,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:41,619 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:41,619 INFO L175 Difference]: Start difference. First operand has 129 places, 249 transitions, 3150 flow. Second operand 10 states and 1329 transitions. [2023-11-12 02:28:41,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 380 transitions, 4746 flow [2023-11-12 02:28:41,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 380 transitions, 4624 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-11-12 02:28:41,719 INFO L231 Difference]: Finished difference. Result has 133 places, 265 transitions, 3721 flow [2023-11-12 02:28:41,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3022, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3721, PETRI_PLACES=133, PETRI_TRANSITIONS=265} [2023-11-12 02:28:41,720 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 76 predicate places. [2023-11-12 02:28:41,720 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 265 transitions, 3721 flow [2023-11-12 02:28:41,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:41,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:41,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:41,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:28:41,722 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:41,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:41,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1807923741, now seen corresponding path program 1 times [2023-11-12 02:28:41,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:41,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929903950] [2023-11-12 02:28:41,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:41,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:42,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:42,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929903950] [2023-11-12 02:28:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929903950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:42,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:42,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:28:42,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722561752] [2023-11-12 02:28:42,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:42,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:28:42,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:42,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:28:42,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:28:42,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2023-11-12 02:28:42,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 265 transitions, 3721 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:42,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:42,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2023-11-12 02:28:42,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:43,079 INFO L124 PetriNetUnfolderBase]: 795/2123 cut-off events. [2023-11-12 02:28:43,079 INFO L125 PetriNetUnfolderBase]: For 14775/14795 co-relation queries the response was YES. [2023-11-12 02:28:43,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11352 conditions, 2123 events. 795/2123 cut-off events. For 14775/14795 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 14342 event pairs, 252 based on Foata normal form. 7/2094 useless extension candidates. Maximal degree in co-relation 11303. Up to 1670 conditions per place. [2023-11-12 02:28:43,107 INFO L140 encePairwiseOnDemand]: 232/247 looper letters, 187 selfloop transitions, 75 changer transitions 96/368 dead transitions. [2023-11-12 02:28:43,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 368 transitions, 5400 flow [2023-11-12 02:28:43,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:28:43,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:28:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2023-11-12 02:28:43,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973009446693657 [2023-11-12 02:28:43,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2023-11-12 02:28:43,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2023-11-12 02:28:43,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:43,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2023-11-12 02:28:43,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,133 INFO L175 Difference]: Start difference. First operand has 133 places, 265 transitions, 3721 flow. Second operand 6 states and 737 transitions. [2023-11-12 02:28:43,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 368 transitions, 5400 flow [2023-11-12 02:28:43,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 368 transitions, 5174 flow, removed 54 selfloop flow, removed 5 redundant places. [2023-11-12 02:28:43,264 INFO L231 Difference]: Finished difference. Result has 138 places, 252 transitions, 3194 flow [2023-11-12 02:28:43,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3574, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3194, PETRI_PLACES=138, PETRI_TRANSITIONS=252} [2023-11-12 02:28:43,266 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 81 predicate places. [2023-11-12 02:28:43,266 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 252 transitions, 3194 flow [2023-11-12 02:28:43,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:43,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:43,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:28:43,267 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:43,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash -144290401, now seen corresponding path program 1 times [2023-11-12 02:28:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:43,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291669171] [2023-11-12 02:28:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:43,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:43,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:43,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291669171] [2023-11-12 02:28:43,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291669171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:43,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:43,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:28:43,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147275936] [2023-11-12 02:28:43,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:43,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:43,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:43,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:43,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:43,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 247 [2023-11-12 02:28:43,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 252 transitions, 3194 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:43,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 247 [2023-11-12 02:28:43,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:43,820 INFO L124 PetriNetUnfolderBase]: 322/1218 cut-off events. [2023-11-12 02:28:43,820 INFO L125 PetriNetUnfolderBase]: For 10402/10537 co-relation queries the response was YES. [2023-11-12 02:28:43,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6751 conditions, 1218 events. 322/1218 cut-off events. For 10402/10537 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 8484 event pairs, 7 based on Foata normal form. 23/1238 useless extension candidates. Maximal degree in co-relation 6700. Up to 416 conditions per place. [2023-11-12 02:28:43,839 INFO L140 encePairwiseOnDemand]: 239/247 looper letters, 57 selfloop transitions, 10 changer transitions 7/224 dead transitions. [2023-11-12 02:28:43,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 224 transitions, 3002 flow [2023-11-12 02:28:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:28:43,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2023-11-12 02:28:43,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5708502024291497 [2023-11-12 02:28:43,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2023-11-12 02:28:43,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2023-11-12 02:28:43,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:43,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2023-11-12 02:28:43,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,847 INFO L175 Difference]: Start difference. First operand has 138 places, 252 transitions, 3194 flow. Second operand 3 states and 423 transitions. [2023-11-12 02:28:43,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 224 transitions, 3002 flow [2023-11-12 02:28:43,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 224 transitions, 2534 flow, removed 109 selfloop flow, removed 14 redundant places. [2023-11-12 02:28:43,976 INFO L231 Difference]: Finished difference. Result has 124 places, 198 transitions, 2156 flow [2023-11-12 02:28:43,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2156, PETRI_PLACES=124, PETRI_TRANSITIONS=198} [2023-11-12 02:28:43,978 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 67 predicate places. [2023-11-12 02:28:43,978 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 198 transitions, 2156 flow [2023-11-12 02:28:43,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:43,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:43,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:43,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:28:43,980 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:43,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1235004308, now seen corresponding path program 1 times [2023-11-12 02:28:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:43,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803551727] [2023-11-12 02:28:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:44,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:44,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803551727] [2023-11-12 02:28:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803551727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:44,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:44,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:28:44,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46909214] [2023-11-12 02:28:44,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:44,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:28:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:28:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:28:44,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 247 [2023-11-12 02:28:44,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 198 transitions, 2156 flow. Second operand has 5 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:44,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:44,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 247 [2023-11-12 02:28:44,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:44,412 INFO L124 PetriNetUnfolderBase]: 150/653 cut-off events. [2023-11-12 02:28:44,412 INFO L125 PetriNetUnfolderBase]: For 4222/4299 co-relation queries the response was YES. [2023-11-12 02:28:44,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3123 conditions, 653 events. 150/653 cut-off events. For 4222/4299 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3815 event pairs, 3 based on Foata normal form. 16/666 useless extension candidates. Maximal degree in co-relation 3079. Up to 157 conditions per place. [2023-11-12 02:28:44,419 INFO L140 encePairwiseOnDemand]: 243/247 looper letters, 29 selfloop transitions, 7 changer transitions 1/187 dead transitions. [2023-11-12 02:28:44,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 187 transitions, 2098 flow [2023-11-12 02:28:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:28:44,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:28:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2023-11-12 02:28:44,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5435222672064778 [2023-11-12 02:28:44,423 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2023-11-12 02:28:44,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2023-11-12 02:28:44,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:44,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2023-11-12 02:28:44,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:44,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 247.0) internal successors, (1235), 5 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:44,428 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 247.0) internal successors, (1235), 5 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:44,428 INFO L175 Difference]: Start difference. First operand has 124 places, 198 transitions, 2156 flow. Second operand 4 states and 537 transitions. [2023-11-12 02:28:44,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 187 transitions, 2098 flow [2023-11-12 02:28:44,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 187 transitions, 1964 flow, removed 6 selfloop flow, removed 8 redundant places. [2023-11-12 02:28:44,471 INFO L231 Difference]: Finished difference. Result has 117 places, 186 transitions, 1896 flow [2023-11-12 02:28:44,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1890, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1896, PETRI_PLACES=117, PETRI_TRANSITIONS=186} [2023-11-12 02:28:44,473 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 60 predicate places. [2023-11-12 02:28:44,474 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 186 transitions, 1896 flow [2023-11-12 02:28:44,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:44,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:44,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:44,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:28:44,475 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-12 02:28:44,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:44,475 INFO L85 PathProgramCache]: Analyzing trace with hash -811234902, now seen corresponding path program 2 times [2023-11-12 02:28:44,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:44,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665654128] [2023-11-12 02:28:44,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:45,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:45,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665654128] [2023-11-12 02:28:45,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665654128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:45,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:45,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:28:45,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580998370] [2023-11-12 02:28:45,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:45,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:45,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:28:45,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 247 [2023-11-12 02:28:45,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 186 transitions, 1896 flow. Second operand has 11 states, 11 states have (on average 103.36363636363636) internal successors, (1137), 11 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:45,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:45,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 247 [2023-11-12 02:28:45,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:46,093 INFO L124 PetriNetUnfolderBase]: 288/853 cut-off events. [2023-11-12 02:28:46,093 INFO L125 PetriNetUnfolderBase]: For 4915/4920 co-relation queries the response was YES. [2023-11-12 02:28:46,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4474 conditions, 853 events. 288/853 cut-off events. For 4915/4920 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4554 event pairs, 91 based on Foata normal form. 20/873 useless extension candidates. Maximal degree in co-relation 4432. Up to 543 conditions per place. [2023-11-12 02:28:46,100 INFO L140 encePairwiseOnDemand]: 239/247 looper letters, 0 selfloop transitions, 0 changer transitions 220/220 dead transitions. [2023-11-12 02:28:46,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 220 transitions, 2714 flow [2023-11-12 02:28:46,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:28:46,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 960 transitions. [2023-11-12 02:28:46,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318488529014845 [2023-11-12 02:28:46,107 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 960 transitions. [2023-11-12 02:28:46,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 960 transitions. [2023-11-12 02:28:46,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:46,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 960 transitions. [2023-11-12 02:28:46,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.66666666666667) internal successors, (960), 9 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:46,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:46,118 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 247.0) internal successors, (2470), 10 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:46,118 INFO L175 Difference]: Start difference. First operand has 117 places, 186 transitions, 1896 flow. Second operand 9 states and 960 transitions. [2023-11-12 02:28:46,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 220 transitions, 2714 flow [2023-11-12 02:28:46,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 220 transitions, 2688 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:28:46,156 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2023-11-12 02:28:46,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1866, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2023-11-12 02:28:46,158 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 63 predicate places. [2023-11-12 02:28:46,158 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2023-11-12 02:28:46,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 103.36363636363636) internal successors, (1137), 11 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:46,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-11-12 02:28:46,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-12 02:28:46,167 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-11-12 02:28:46,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-12 02:28:46,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-12 02:28:46,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-12 02:28:46,168 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-12 02:28:46,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-12 02:28:46,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-12 02:28:46,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-12 02:28:46,169 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-12 02:28:46,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:28:46,170 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:46,178 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:28:46,178 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:28:46,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:28:46 BasicIcfg [2023-11-12 02:28:46,183 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:28:46,183 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:28:46,183 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:28:46,184 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:28:46,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:28:14" (3/4) ... [2023-11-12 02:28:46,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:28:46,192 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-12 02:28:46,201 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-12 02:28:46,201 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:28:46,202 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:28:46,202 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:28:46,314 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:28:46,314 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:28:46,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:28:46,315 INFO L158 Benchmark]: Toolchain (without parser) took 33088.01ms. Allocated memory was 161.5MB in the beginning and 453.0MB in the end (delta: 291.5MB). Free memory was 115.8MB in the beginning and 267.6MB in the end (delta: -151.8MB). Peak memory consumption was 142.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:46,316 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:28:46,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.34ms. Allocated memory is still 161.5MB. Free memory was 115.4MB in the beginning and 95.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:28:46,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.84ms. Allocated memory is still 161.5MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:46,318 INFO L158 Benchmark]: Boogie Preprocessor took 107.31ms. Allocated memory is still 161.5MB. Free memory was 93.2MB in the beginning and 91.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:28:46,318 INFO L158 Benchmark]: RCFGBuilder took 667.53ms. Allocated memory is still 161.5MB. Free memory was 91.1MB in the beginning and 72.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:28:46,319 INFO L158 Benchmark]: TraceAbstraction took 31382.96ms. Allocated memory was 161.5MB in the beginning and 453.0MB in the end (delta: 291.5MB). Free memory was 71.8MB in the beginning and 271.8MB in the end (delta: -200.0MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2023-11-12 02:28:46,319 INFO L158 Benchmark]: Witness Printer took 130.85ms. Allocated memory is still 453.0MB. Free memory was 271.8MB in the beginning and 267.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:28:46,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 693.34ms. Allocated memory is still 161.5MB. Free memory was 115.4MB in the beginning and 95.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.84ms. Allocated memory is still 161.5MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.31ms. Allocated memory is still 161.5MB. Free memory was 93.2MB in the beginning and 91.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 667.53ms. Allocated memory is still 161.5MB. Free memory was 91.1MB in the beginning and 72.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 31382.96ms. Allocated memory was 161.5MB in the beginning and 453.0MB in the end (delta: 291.5MB). Free memory was 71.8MB in the beginning and 271.8MB in the end (delta: -200.0MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. * Witness Printer took 130.85ms. Allocated memory is still 453.0MB. Free memory was 271.8MB in the beginning and 267.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 134 PlacesBefore, 57 PlacesAfterwards, 140 TransitionsBefore, 62 TransitionsAfterwards, 4880 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 96 TotalNumberOfCompositions, 24720 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4400, independent: 3695, independent conditional: 0, independent unconditional: 3695, dependent: 705, dependent conditional: 0, dependent unconditional: 705, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2240, independent: 2156, independent conditional: 0, independent unconditional: 2156, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4400, independent: 1539, independent conditional: 0, independent unconditional: 1539, dependent: 621, dependent conditional: 0, dependent unconditional: 621, unknown: 2240, unknown conditional: 0, unknown unconditional: 2240] , Statistics on independence cache: Total cache size (in pairs): 192, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 199 locations, 11 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: 31.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3569 SdHoareTripleChecker+Valid, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2777 mSDsluCounter, 1190 SdHoareTripleChecker+Invalid, 9.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1144 mSDsCounter, 973 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10717 IncrementalHoareTripleChecker+Invalid, 11690 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 973 mSolverCounterUnsat, 46 mSDtfsCounter, 10717 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3721occurred in iteration=11, InterpolantAutomatonStates: 107, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 3539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:28:46,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d46cc5e-c115-411f-99bf-ba42d48afc39/bin/uautomizer-verify-uTZkv6EMXl/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 Result: TRUE