./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu --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 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:06,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:06,159 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:37:06,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:06,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:06,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:06,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:06,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:06,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:06,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:06,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:06,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:06,200 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:06,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:06,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:06,202 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:06,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:06,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:06,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:06,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:06,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:06,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:06,206 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:37:06,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:37:06,207 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:06,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:06,209 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:06,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:06,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:06,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:06,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:06,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:06,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:06,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:06,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:06,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:06,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:06,215 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:06,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:06,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:06,216 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:06,216 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_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 [2023-11-19 07:37:06,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:06,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:06,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:06,552 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:06,552 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:06,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread/stack_longer-1.i [2023-11-19 07:37:09,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:10,079 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:10,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/sv-benchmarks/c/pthread/stack_longer-1.i [2023-11-19 07:37:10,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/data/bb9477268/a30b2f8904b64ebfb5bec33f38b9087b/FLAG45e16c66f [2023-11-19 07:37:10,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/data/bb9477268/a30b2f8904b64ebfb5bec33f38b9087b [2023-11-19 07:37:10,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:10,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:10,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:10,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:10,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:10,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:10" (1/1) ... [2023-11-19 07:37:10,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e1ff5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:10, skipping insertion in model container [2023-11-19 07:37:10,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:10" (1/1) ... [2023-11-19 07:37:10,220 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:10,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:10,882 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:10,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:11,014 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:11,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11 WrapperNode [2023-11-19 07:37:11,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:11,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:11,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:11,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:11,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,085 INFO L138 Inliner]: procedures = 277, calls = 40, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 209 [2023-11-19 07:37:11,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:11,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:11,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:11,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:11,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,107 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:11,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:11,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:11,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:11,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (1/1) ... [2023-11-19 07:37:11,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:11,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:11,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:11,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f732cbb-4554-4874-ba72-09bb740b41b7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-19 07:37:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-19 07:37:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-19 07:37:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-19 07:37:11,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:37:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:11,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:11,250 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:37:11,414 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:11,417 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:11,885 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:11,899 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:11,907 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:37:11,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:11 BoogieIcfgContainer [2023-11-19 07:37:11,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:11,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:11,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:11,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:11,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:10" (1/3) ... [2023-11-19 07:37:11,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c6dbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:11, skipping insertion in model container [2023-11-19 07:37:11,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:11" (2/3) ... [2023-11-19 07:37:11,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c6dbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:11, skipping insertion in model container [2023-11-19 07:37:11,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:11" (3/3) ... [2023-11-19 07:37:11,930 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2023-11-19 07:37:11,942 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:37:11,955 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:11,955 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-19 07:37:11,955 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:37:12,092 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:37:12,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 236 transitions, 486 flow [2023-11-19 07:37:12,267 INFO L124 PetriNetUnfolderBase]: 12/234 cut-off events. [2023-11-19 07:37:12,267 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:37:12,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 234 events. 12/234 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 636 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 192. Up to 3 conditions per place. [2023-11-19 07:37:12,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 236 transitions, 486 flow [2023-11-19 07:37:12,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 224 transitions, 457 flow [2023-11-19 07:37:12,292 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:37:12,303 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 224 transitions, 457 flow [2023-11-19 07:37:12,306 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 224 transitions, 457 flow [2023-11-19 07:37:12,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 224 transitions, 457 flow [2023-11-19 07:37:12,390 INFO L124 PetriNetUnfolderBase]: 12/224 cut-off events. [2023-11-19 07:37:12,391 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:37:12,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 224 events. 12/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 562 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 192. Up to 3 conditions per place. [2023-11-19 07:37:12,412 INFO L119 LiptonReduction]: Number of co-enabled transitions 20606 [2023-11-19 07:37:17,304 INFO L134 LiptonReduction]: Checked pairs total: 69140 [2023-11-19 07:37:17,304 INFO L136 LiptonReduction]: Total number of compositions: 171 [2023-11-19 07:37:17,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:17,328 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;@8e77e8c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:17,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-19 07:37:17,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:37:17,333 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-11-19 07:37:17,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:37:17,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:17,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:37:17,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:17,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash 930727142, now seen corresponding path program 1 times [2023-11-19 07:37:17,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:17,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183962929] [2023-11-19 07:37:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:17,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:17,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:17,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183962929] [2023-11-19 07:37:17,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183962929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:17,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:17,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:17,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452540274] [2023-11-19 07:37:17,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:17,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:37:17,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:37:17,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:17,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 407 [2023-11-19 07:37:17,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 86 transitions, 181 flow. Second operand has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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) [2023-11-19 07:37:17,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:17,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 407 [2023-11-19 07:37:17,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:18,020 INFO L124 PetriNetUnfolderBase]: 735/1872 cut-off events. [2023-11-19 07:37:18,021 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-11-19 07:37:18,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3104 conditions, 1872 events. 735/1872 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 12460 event pairs, 585 based on Foata normal form. 0/1596 useless extension candidates. Maximal degree in co-relation 2880. Up to 1185 conditions per place. [2023-11-19 07:37:18,039 INFO L140 encePairwiseOnDemand]: 406/407 looper letters, 38 selfloop transitions, 0 changer transitions 0/84 dead transitions. [2023-11-19 07:37:18,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 253 flow [2023-11-19 07:37:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:37:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:37:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 485 transitions. [2023-11-19 07:37:18,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5958230958230958 [2023-11-19 07:37:18,068 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 485 transitions. [2023-11-19 07:37:18,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 485 transitions. [2023-11-19 07:37:18,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:18,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 485 transitions. [2023-11-19 07:37:18,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 242.5) internal successors, (485), 2 states have internal predecessors, (485), 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) [2023-11-19 07:37:18,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 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) [2023-11-19 07:37:18,090 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 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) [2023-11-19 07:37:18,092 INFO L175 Difference]: Start difference. First operand has 87 places, 86 transitions, 181 flow. Second operand 2 states and 485 transitions. [2023-11-19 07:37:18,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 253 flow [2023-11-19 07:37:18,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 84 transitions, 248 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:37:18,100 INFO L231 Difference]: Finished difference. Result has 84 places, 84 transitions, 172 flow [2023-11-19 07:37:18,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=172, PETRI_PLACES=84, PETRI_TRANSITIONS=84} [2023-11-19 07:37:18,108 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -3 predicate places. [2023-11-19 07:37:18,108 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 84 transitions, 172 flow [2023-11-19 07:37:18,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 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) [2023-11-19 07:37:18,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:18,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:37:18,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:18,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:18,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:18,111 INFO L85 PathProgramCache]: Analyzing trace with hash 930728134, now seen corresponding path program 1 times [2023-11-19 07:37:18,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:18,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445778109] [2023-11-19 07:37:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:18,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:18,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445778109] [2023-11-19 07:37:18,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445778109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:18,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:18,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:18,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847558426] [2023-11-19 07:37:18,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:18,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:18,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:18,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:18,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:18,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 407 [2023-11-19 07:37:18,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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) [2023-11-19 07:37:18,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:18,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 407 [2023-11-19 07:37:18,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:19,029 INFO L124 PetriNetUnfolderBase]: 2016/4223 cut-off events. [2023-11-19 07:37:19,029 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-11-19 07:37:19,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7698 conditions, 4223 events. 2016/4223 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 26136 event pairs, 648 based on Foata normal form. 0/3851 useless extension candidates. Maximal degree in co-relation 7695. Up to 2362 conditions per place. [2023-11-19 07:37:19,066 INFO L140 encePairwiseOnDemand]: 387/407 looper letters, 84 selfloop transitions, 14 changer transitions 0/129 dead transitions. [2023-11-19 07:37:19,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 129 transitions, 461 flow [2023-11-19 07:37:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:19,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2023-11-19 07:37:19,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.583947583947584 [2023-11-19 07:37:19,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 713 transitions. [2023-11-19 07:37:19,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 713 transitions. [2023-11-19 07:37:19,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:19,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 713 transitions. [2023-11-19 07:37:19,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 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) [2023-11-19 07:37:19,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:19,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:19,083 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 172 flow. Second operand 3 states and 713 transitions. [2023-11-19 07:37:19,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 129 transitions, 461 flow [2023-11-19 07:37:19,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 129 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:37:19,092 INFO L231 Difference]: Finished difference. Result has 88 places, 98 transitions, 296 flow [2023-11-19 07:37:19,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=88, PETRI_TRANSITIONS=98} [2023-11-19 07:37:19,094 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 1 predicate places. [2023-11-19 07:37:19,094 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 98 transitions, 296 flow [2023-11-19 07:37:19,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 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) [2023-11-19 07:37:19,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:19,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:19,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:19,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:19,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:19,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1387870512, now seen corresponding path program 1 times [2023-11-19 07:37:19,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:19,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515490656] [2023-11-19 07:37:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:19,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:19,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:19,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515490656] [2023-11-19 07:37:19,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515490656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:19,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:19,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:19,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17702479] [2023-11-19 07:37:19,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:19,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:19,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:19,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:19,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:19,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 407 [2023-11-19 07:37:19,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 98 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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) [2023-11-19 07:37:19,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:19,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 407 [2023-11-19 07:37:19,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:20,146 INFO L124 PetriNetUnfolderBase]: 2982/6605 cut-off events. [2023-11-19 07:37:20,147 INFO L125 PetriNetUnfolderBase]: For 795/839 co-relation queries the response was YES. [2023-11-19 07:37:20,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13060 conditions, 6605 events. 2982/6605 cut-off events. For 795/839 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 48983 event pairs, 879 based on Foata normal form. 0/6036 useless extension candidates. Maximal degree in co-relation 13055. Up to 2619 conditions per place. [2023-11-19 07:37:20,261 INFO L140 encePairwiseOnDemand]: 403/407 looper letters, 83 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2023-11-19 07:37:20,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 138 transitions, 579 flow [2023-11-19 07:37:20,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:20,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2023-11-19 07:37:20,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6011466011466011 [2023-11-19 07:37:20,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2023-11-19 07:37:20,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2023-11-19 07:37:20,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:20,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2023-11-19 07:37:20,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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) [2023-11-19 07:37:20,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:20,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:20,274 INFO L175 Difference]: Start difference. First operand has 88 places, 98 transitions, 296 flow. Second operand 3 states and 734 transitions. [2023-11-19 07:37:20,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 138 transitions, 579 flow [2023-11-19 07:37:20,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 138 transitions, 541 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:20,287 INFO L231 Difference]: Finished difference. Result has 90 places, 101 transitions, 294 flow [2023-11-19 07:37:20,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=90, PETRI_TRANSITIONS=101} [2023-11-19 07:37:20,289 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 3 predicate places. [2023-11-19 07:37:20,289 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 101 transitions, 294 flow [2023-11-19 07:37:20,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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) [2023-11-19 07:37:20,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:20,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:20,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:20,291 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:20,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2053813007, now seen corresponding path program 1 times [2023-11-19 07:37:20,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:20,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908360861] [2023-11-19 07:37:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:20,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:20,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:20,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908360861] [2023-11-19 07:37:20,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908360861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:20,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:20,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:20,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671264717] [2023-11-19 07:37:20,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:20,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:20,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:20,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:20,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:20,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 407 [2023-11-19 07:37:20,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 101 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 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) [2023-11-19 07:37:20,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:20,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 407 [2023-11-19 07:37:20,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:26,431 INFO L124 PetriNetUnfolderBase]: 23426/42594 cut-off events. [2023-11-19 07:37:26,431 INFO L125 PetriNetUnfolderBase]: For 4664/4947 co-relation queries the response was YES. [2023-11-19 07:37:26,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86782 conditions, 42594 events. 23426/42594 cut-off events. For 4664/4947 co-relation queries the response was YES. Maximal size of possible extension queue 895. Compared 370982 event pairs, 6501 based on Foata normal form. 25/38142 useless extension candidates. Maximal degree in co-relation 86776. Up to 20152 conditions per place. [2023-11-19 07:37:26,694 INFO L140 encePairwiseOnDemand]: 397/407 looper letters, 198 selfloop transitions, 21 changer transitions 0/267 dead transitions. [2023-11-19 07:37:26,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 267 transitions, 1169 flow [2023-11-19 07:37:26,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:26,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1444 transitions. [2023-11-19 07:37:26,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5913185913185913 [2023-11-19 07:37:26,701 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1444 transitions. [2023-11-19 07:37:26,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1444 transitions. [2023-11-19 07:37:26,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:26,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1444 transitions. [2023-11-19 07:37:26,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.66666666666666) internal successors, (1444), 6 states have internal predecessors, (1444), 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) [2023-11-19 07:37:26,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 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) [2023-11-19 07:37:26,716 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 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) [2023-11-19 07:37:26,717 INFO L175 Difference]: Start difference. First operand has 90 places, 101 transitions, 294 flow. Second operand 6 states and 1444 transitions. [2023-11-19 07:37:26,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 267 transitions, 1169 flow [2023-11-19 07:37:26,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 267 transitions, 1155 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:26,733 INFO L231 Difference]: Finished difference. Result has 98 places, 121 transitions, 430 flow [2023-11-19 07:37:26,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=98, PETRI_TRANSITIONS=121} [2023-11-19 07:37:26,735 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 11 predicate places. [2023-11-19 07:37:26,735 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 121 transitions, 430 flow [2023-11-19 07:37:26,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 210.66666666666666) internal successors, (1264), 6 states have internal predecessors, (1264), 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) [2023-11-19 07:37:26,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:26,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:26,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:26,738 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:26,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:26,738 INFO L85 PathProgramCache]: Analyzing trace with hash -505770300, now seen corresponding path program 1 times [2023-11-19 07:37:26,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:26,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947338992] [2023-11-19 07:37:26,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:26,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:26,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:26,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947338992] [2023-11-19 07:37:26,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947338992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:26,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:26,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:26,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951656788] [2023-11-19 07:37:26,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:26,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:26,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:26,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:26,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:26,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 407 [2023-11-19 07:37:26,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 121 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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) [2023-11-19 07:37:26,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:26,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 407 [2023-11-19 07:37:26,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:30,462 INFO L124 PetriNetUnfolderBase]: 12020/29721 cut-off events. [2023-11-19 07:37:30,462 INFO L125 PetriNetUnfolderBase]: For 4237/4610 co-relation queries the response was YES. [2023-11-19 07:37:30,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61697 conditions, 29721 events. 12020/29721 cut-off events. For 4237/4610 co-relation queries the response was YES. Maximal size of possible extension queue 950. Compared 321049 event pairs, 3867 based on Foata normal form. 148/26984 useless extension candidates. Maximal degree in co-relation 61687. Up to 12658 conditions per place. [2023-11-19 07:37:30,788 INFO L140 encePairwiseOnDemand]: 402/407 looper letters, 82 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2023-11-19 07:37:30,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 159 transitions, 717 flow [2023-11-19 07:37:30,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:30,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:30,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 726 transitions. [2023-11-19 07:37:30,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2023-11-19 07:37:30,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 726 transitions. [2023-11-19 07:37:30,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 726 transitions. [2023-11-19 07:37:30,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:30,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 726 transitions. [2023-11-19 07:37:30,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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) [2023-11-19 07:37:30,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:30,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:30,803 INFO L175 Difference]: Start difference. First operand has 98 places, 121 transitions, 430 flow. Second operand 3 states and 726 transitions. [2023-11-19 07:37:30,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 159 transitions, 717 flow [2023-11-19 07:37:30,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 159 transitions, 717 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:37:30,852 INFO L231 Difference]: Finished difference. Result has 102 places, 124 transitions, 460 flow [2023-11-19 07:37:30,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=102, PETRI_TRANSITIONS=124} [2023-11-19 07:37:30,855 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 15 predicate places. [2023-11-19 07:37:30,855 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 124 transitions, 460 flow [2023-11-19 07:37:30,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.66666666666666) internal successors, (665), 3 states have internal predecessors, (665), 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) [2023-11-19 07:37:30,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:30,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:30,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:37:30,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:30,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash 542396120, now seen corresponding path program 1 times [2023-11-19 07:37:30,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:30,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343555642] [2023-11-19 07:37:30,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:30,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:31,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:31,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343555642] [2023-11-19 07:37:31,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343555642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:31,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:31,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:31,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977399096] [2023-11-19 07:37:31,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:31,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:31,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:31,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:31,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:31,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 407 [2023-11-19 07:37:31,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 124 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 200.0) internal successors, (1200), 6 states have internal predecessors, (1200), 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) [2023-11-19 07:37:31,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:31,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 407 [2023-11-19 07:37:31,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:39,388 INFO L124 PetriNetUnfolderBase]: 37413/68711 cut-off events. [2023-11-19 07:37:39,388 INFO L125 PetriNetUnfolderBase]: For 39001/39548 co-relation queries the response was YES. [2023-11-19 07:37:39,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173118 conditions, 68711 events. 37413/68711 cut-off events. For 39001/39548 co-relation queries the response was YES. Maximal size of possible extension queue 1499. Compared 636536 event pairs, 18522 based on Foata normal form. 0/63901 useless extension candidates. Maximal degree in co-relation 173106. Up to 52763 conditions per place. [2023-11-19 07:37:40,131 INFO L140 encePairwiseOnDemand]: 393/407 looper letters, 164 selfloop transitions, 44 changer transitions 0/251 dead transitions. [2023-11-19 07:37:40,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 251 transitions, 1276 flow [2023-11-19 07:37:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1354 transitions. [2023-11-19 07:37:40,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5544635544635544 [2023-11-19 07:37:40,137 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1354 transitions. [2023-11-19 07:37:40,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1354 transitions. [2023-11-19 07:37:40,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:40,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1354 transitions. [2023-11-19 07:37:40,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.66666666666666) internal successors, (1354), 6 states have internal predecessors, (1354), 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) [2023-11-19 07:37:40,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 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) [2023-11-19 07:37:40,150 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 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) [2023-11-19 07:37:40,150 INFO L175 Difference]: Start difference. First operand has 102 places, 124 transitions, 460 flow. Second operand 6 states and 1354 transitions. [2023-11-19 07:37:40,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 251 transitions, 1276 flow [2023-11-19 07:37:41,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 251 transitions, 1252 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:41,050 INFO L231 Difference]: Finished difference. Result has 109 places, 163 transitions, 758 flow [2023-11-19 07:37:41,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=758, PETRI_PLACES=109, PETRI_TRANSITIONS=163} [2023-11-19 07:37:41,051 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 22 predicate places. [2023-11-19 07:37:41,052 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 163 transitions, 758 flow [2023-11-19 07:37:41,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.0) internal successors, (1200), 6 states have internal predecessors, (1200), 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) [2023-11-19 07:37:41,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:41,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:41,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:37:41,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:41,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:41,054 INFO L85 PathProgramCache]: Analyzing trace with hash -986580878, now seen corresponding path program 1 times [2023-11-19 07:37:41,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:41,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158813850] [2023-11-19 07:37:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:41,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:41,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:41,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158813850] [2023-11-19 07:37:41,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158813850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:41,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:41,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:41,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578673279] [2023-11-19 07:37:41,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:41,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:41,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:41,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:41,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 407 [2023-11-19 07:37:41,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 163 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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) [2023-11-19 07:37:41,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:41,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 407 [2023-11-19 07:37:41,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:47,884 INFO L124 PetriNetUnfolderBase]: 23010/54706 cut-off events. [2023-11-19 07:37:47,884 INFO L125 PetriNetUnfolderBase]: For 26671/29284 co-relation queries the response was YES. [2023-11-19 07:37:48,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133082 conditions, 54706 events. 23010/54706 cut-off events. For 26671/29284 co-relation queries the response was YES. Maximal size of possible extension queue 1509. Compared 622538 event pairs, 8712 based on Foata normal form. 441/51393 useless extension candidates. Maximal degree in co-relation 133066. Up to 22626 conditions per place. [2023-11-19 07:37:48,313 INFO L140 encePairwiseOnDemand]: 404/407 looper letters, 96 selfloop transitions, 2 changer transitions 0/209 dead transitions. [2023-11-19 07:37:48,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 209 transitions, 1124 flow [2023-11-19 07:37:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 728 transitions. [2023-11-19 07:37:48,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962325962325963 [2023-11-19 07:37:48,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 728 transitions. [2023-11-19 07:37:48,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 728 transitions. [2023-11-19 07:37:48,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:48,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 728 transitions. [2023-11-19 07:37:48,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 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) [2023-11-19 07:37:48,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:48,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2023-11-19 07:37:48,325 INFO L175 Difference]: Start difference. First operand has 109 places, 163 transitions, 758 flow. Second operand 3 states and 728 transitions. [2023-11-19 07:37:48,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 209 transitions, 1124 flow [2023-11-19 07:37:49,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 209 transitions, 1100 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-11-19 07:37:49,481 INFO L231 Difference]: Finished difference. Result has 112 places, 164 transitions, 746 flow [2023-11-19 07:37:49,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=746, PETRI_PLACES=112, PETRI_TRANSITIONS=164} [2023-11-19 07:37:49,483 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 25 predicate places. [2023-11-19 07:37:49,483 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 164 transitions, 746 flow [2023-11-19 07:37:49,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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) [2023-11-19 07:37:49,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:49,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:49,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:37:49,485 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:49,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:49,485 INFO L85 PathProgramCache]: Analyzing trace with hash 280948185, now seen corresponding path program 1 times [2023-11-19 07:37:49,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:49,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209340421] [2023-11-19 07:37:49,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:49,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:49,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209340421] [2023-11-19 07:37:49,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209340421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:49,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:49,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971737873] [2023-11-19 07:37:49,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:49,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:49,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:49,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:49,603 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 407 [2023-11-19 07:37:49,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 164 transitions, 746 flow. Second operand has 4 states, 4 states have (on average 214.75) internal successors, (859), 4 states have internal predecessors, (859), 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) [2023-11-19 07:37:49,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:49,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 407 [2023-11-19 07:37:49,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:55,525 INFO L124 PetriNetUnfolderBase]: 18882/44930 cut-off events. [2023-11-19 07:37:55,525 INFO L125 PetriNetUnfolderBase]: For 21126/22886 co-relation queries the response was YES. [2023-11-19 07:37:55,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108441 conditions, 44930 events. 18882/44930 cut-off events. For 21126/22886 co-relation queries the response was YES. Maximal size of possible extension queue 1213. Compared 492366 event pairs, 5802 based on Foata normal form. 1361/43954 useless extension candidates. Maximal degree in co-relation 108423. Up to 17477 conditions per place. [2023-11-19 07:37:56,152 INFO L140 encePairwiseOnDemand]: 402/407 looper letters, 130 selfloop transitions, 5 changer transitions 0/246 dead transitions. [2023-11-19 07:37:56,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 246 transitions, 1359 flow [2023-11-19 07:37:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:37:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1161 transitions. [2023-11-19 07:37:56,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5705159705159705 [2023-11-19 07:37:56,157 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1161 transitions. [2023-11-19 07:37:56,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1161 transitions. [2023-11-19 07:37:56,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:56,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1161 transitions. [2023-11-19 07:37:56,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 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) [2023-11-19 07:37:56,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 407.0) internal successors, (2442), 6 states have internal predecessors, (2442), 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) [2023-11-19 07:37:56,168 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 407.0) internal successors, (2442), 6 states have internal predecessors, (2442), 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) [2023-11-19 07:37:56,168 INFO L175 Difference]: Start difference. First operand has 112 places, 164 transitions, 746 flow. Second operand 5 states and 1161 transitions. [2023-11-19 07:37:56,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 246 transitions, 1359 flow [2023-11-19 07:37:56,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 246 transitions, 1353 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:56,436 INFO L231 Difference]: Finished difference. Result has 118 places, 165 transitions, 773 flow [2023-11-19 07:37:56,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=773, PETRI_PLACES=118, PETRI_TRANSITIONS=165} [2023-11-19 07:37:56,437 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 31 predicate places. [2023-11-19 07:37:56,437 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 165 transitions, 773 flow [2023-11-19 07:37:56,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 214.75) internal successors, (859), 4 states have internal predecessors, (859), 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) [2023-11-19 07:37:56,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:56,438 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] [2023-11-19 07:37:56,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:37:56,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2023-11-19 07:37:56,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:56,439 INFO L85 PathProgramCache]: Analyzing trace with hash 862386360, now seen corresponding path program 1 times [2023-11-19 07:37:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:56,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302713857] [2023-11-19 07:37:56,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:56,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:56,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:56,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302713857] [2023-11-19 07:37:56,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302713857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:56,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:56,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:37:56,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300018202] [2023-11-19 07:37:56,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:56,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:37:56,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:56,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:37:56,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:37:57,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 407 [2023-11-19 07:37:57,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 165 transitions, 773 flow. Second operand has 9 states, 9 states have (on average 207.77777777777777) internal successors, (1870), 9 states have internal predecessors, (1870), 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) [2023-11-19 07:37:57,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:57,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 407 [2023-11-19 07:37:57,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand