./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/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_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/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_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/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 adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:18,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:19,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:46:19,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:19,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:19,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:19,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:19,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:19,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:19,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:19,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:19,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:19,186 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:19,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:19,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:19,189 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:19,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:19,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:19,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:19,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:19,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:19,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:19,192 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:46:19,192 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:19,193 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:19,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:19,194 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:19,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:19,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:19,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:19,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:19,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:19,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:19,198 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:19,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:19,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:19,199 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:19,199 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:19,199 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:19,199 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:19,200 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:19,200 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_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 [2023-11-19 07:46:19,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:19,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:19,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:19,557 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:19,557 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:19,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2023-11-19 07:46:22,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:23,205 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:23,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2023-11-19 07:46:23,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/data/f3e70d65b/ae8fdc8ca21143508fab2618c025077f/FLAG245bf0f40 [2023-11-19 07:46:23,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/data/f3e70d65b/ae8fdc8ca21143508fab2618c025077f [2023-11-19 07:46:23,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:23,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:23,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:23,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:23,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:23,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:23,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4f095a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:23, skipping insertion in model container [2023-11-19 07:46:23,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:23" (1/1) ... [2023-11-19 07:46:23,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:23,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:23,878 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:23,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:24,016 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:24,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24 WrapperNode [2023-11-19 07:46:24,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:24,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:24,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:24,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:24,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,114 INFO L138 Inliner]: procedures = 176, calls = 37, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 222 [2023-11-19 07:46:24,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:24,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:24,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:24,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:24,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:24,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:24,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:24,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:24,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:24,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:24,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:24,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a0f74a1f-93d0-40b8-b0d4-4becc9c36586/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:24,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:46:24,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:46:24,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:24,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:24,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:24,283 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 07:46:24,421 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:24,423 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:24,876 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:25,168 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:25,168 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:46:25,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:25 BoogieIcfgContainer [2023-11-19 07:46:25,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:25,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:25,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:25,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:25,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:23" (1/3) ... [2023-11-19 07:46:25,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be319d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:25, skipping insertion in model container [2023-11-19 07:46:25,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (2/3) ... [2023-11-19 07:46:25,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be319d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:25, skipping insertion in model container [2023-11-19 07:46:25,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:25" (3/3) ... [2023-11-19 07:46:25,189 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas-race.i [2023-11-19 07:46:25,203 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:46:25,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:25,217 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 07:46:25,218 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:46:25,366 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:46:25,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 181 transitions, 366 flow [2023-11-19 07:46:25,504 INFO L124 PetriNetUnfolderBase]: 18/192 cut-off events. [2023-11-19 07:46:25,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:25,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 192 events. 18/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 359 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 165. Up to 4 conditions per place. [2023-11-19 07:46:25,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 181 transitions, 366 flow [2023-11-19 07:46:25,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 181 transitions, 366 flow [2023-11-19 07:46:25,523 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:25,534 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 181 transitions, 366 flow [2023-11-19 07:46:25,537 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 181 transitions, 366 flow [2023-11-19 07:46:25,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 181 transitions, 366 flow [2023-11-19 07:46:25,578 INFO L124 PetriNetUnfolderBase]: 18/192 cut-off events. [2023-11-19 07:46:25,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:25,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 192 events. 18/192 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 359 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 165. Up to 4 conditions per place. [2023-11-19 07:46:25,584 INFO L119 LiptonReduction]: Number of co-enabled transitions 4256 [2023-11-19 07:46:44,581 INFO L134 LiptonReduction]: Checked pairs total: 4801 [2023-11-19 07:46:44,581 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-11-19 07:46:44,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:44,603 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;@7b894ddd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:44,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-11-19 07:46:44,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:46:44,607 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-19 07:46:44,607 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:44,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:44,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:46:44,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-19 07:46:44,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:44,614 INFO L85 PathProgramCache]: Analyzing trace with hash 31421571, now seen corresponding path program 1 times [2023-11-19 07:46:44,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:44,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704076301] [2023-11-19 07:46:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:44,881 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 07:46:44,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:44,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704076301] [2023-11-19 07:46:44,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704076301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:44,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:44,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:46:44,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778490840] [2023-11-19 07:46:44,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:44,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:44,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:44,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:44,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 408 [2023-11-19 07:46:44,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 34 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 151.0) internal successors, (302), 2 states have internal predecessors, (302), 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 07:46:44,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:44,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 408 [2023-11-19 07:46:44,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:45,058 INFO L124 PetriNetUnfolderBase]: 24/51 cut-off events. [2023-11-19 07:46:45,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:45,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 51 events. 24/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 114 event pairs, 12 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 88. Up to 48 conditions per place. [2023-11-19 07:46:45,060 INFO L140 encePairwiseOnDemand]: 389/408 looper letters, 14 selfloop transitions, 0 changer transitions 0/15 dead transitions. [2023-11-19 07:46:45,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 15 transitions, 62 flow [2023-11-19 07:46:45,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:45,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:46:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 331 transitions. [2023-11-19 07:46:45,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4056372549019608 [2023-11-19 07:46:45,079 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 331 transitions. [2023-11-19 07:46:45,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 331 transitions. [2023-11-19 07:46:45,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:45,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 331 transitions. [2023-11-19 07:46:45,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 165.5) internal successors, (331), 2 states have internal predecessors, (331), 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 07:46:45,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 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 07:46:45,103 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 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 07:46:45,105 INFO L175 Difference]: Start difference. First operand has 31 places, 34 transitions, 72 flow. Second operand 2 states and 331 transitions. [2023-11-19 07:46:45,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 15 transitions, 62 flow [2023-11-19 07:46:45,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 15 transitions, 62 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:46:45,112 INFO L231 Difference]: Finished difference. Result has 15 places, 15 transitions, 34 flow [2023-11-19 07:46:45,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=34, PETRI_PLACES=15, PETRI_TRANSITIONS=15} [2023-11-19 07:46:45,117 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -16 predicate places. [2023-11-19 07:46:45,118 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 15 transitions, 34 flow [2023-11-19 07:46:45,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 151.0) internal successors, (302), 2 states have internal predecessors, (302), 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 07:46:45,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:45,119 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:46:45,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:45,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-19 07:46:45,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:45,120 INFO L85 PathProgramCache]: Analyzing trace with hash 131452554, now seen corresponding path program 1 times [2023-11-19 07:46:45,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:45,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995355110] [2023-11-19 07:46:45,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:45,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:45,156 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:46:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:46:45,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:46:45,210 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:46:45,212 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-11-19 07:46:45,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-11-19 07:46:45,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-11-19 07:46:45,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-11-19 07:46:45,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-11-19 07:46:45,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-11-19 07:46:45,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-11-19 07:46:45,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-11-19 07:46:45,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-11-19 07:46:45,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-11-19 07:46:45,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-11-19 07:46:45,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-11-19 07:46:45,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-11-19 07:46:45,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-11-19 07:46:45,223 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-11-19 07:46:45,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-11-19 07:46:45,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-11-19 07:46:45,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-11-19 07:46:45,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-11-19 07:46:45,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-11-19 07:46:45,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-11-19 07:46:45,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-11-19 07:46:45,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-11-19 07:46:45,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-11-19 07:46:45,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-11-19 07:46:45,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-11-19 07:46:45,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-11-19 07:46:45,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-11-19 07:46:45,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-11-19 07:46:45,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-11-19 07:46:45,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-11-19 07:46:45,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-11-19 07:46:45,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-11-19 07:46:45,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:45,244 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:46:45,249 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:46:45,250 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:46:45,333 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:46:45,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 334 transitions, 678 flow [2023-11-19 07:46:45,445 INFO L124 PetriNetUnfolderBase]: 35/358 cut-off events. [2023-11-19 07:46:45,445 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:46:45,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 358 events. 35/358 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1248 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 317. Up to 6 conditions per place. [2023-11-19 07:46:45,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 306 places, 334 transitions, 678 flow [2023-11-19 07:46:45,464 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 334 transitions, 678 flow [2023-11-19 07:46:45,465 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:45,465 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 306 places, 334 transitions, 678 flow [2023-11-19 07:46:45,465 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 306 places, 334 transitions, 678 flow [2023-11-19 07:46:45,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 334 transitions, 678 flow [2023-11-19 07:46:45,564 INFO L124 PetriNetUnfolderBase]: 35/358 cut-off events. [2023-11-19 07:46:45,564 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:46:45,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 358 events. 35/358 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1248 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 317. Up to 6 conditions per place. [2023-11-19 07:46:45,609 INFO L119 LiptonReduction]: Number of co-enabled transitions 55024 [2023-11-19 07:47:11,593 INFO L134 LiptonReduction]: Checked pairs total: 168551 [2023-11-19 07:47:11,594 INFO L136 LiptonReduction]: Total number of compositions: 315 [2023-11-19 07:47:11,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:11,597 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;@7b894ddd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:11,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-19 07:47:11,600 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:11,600 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:47:11,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:11,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:11,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:47:11,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:47:11,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:11,602 INFO L85 PathProgramCache]: Analyzing trace with hash 56308442, now seen corresponding path program 1 times [2023-11-19 07:47:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:11,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076010532] [2023-11-19 07:47:11,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:11,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:11,635 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 07:47:11,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076010532] [2023-11-19 07:47:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076010532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:11,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:11,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:47:11,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686836226] [2023-11-19 07:47:11,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:11,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:47:11,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:47:11,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:11,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 649 [2023-11-19 07:47:11,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 128 transitions, 266 flow. Second operand has 2 states, 2 states have (on average 274.0) internal successors, (548), 2 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:11,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:11,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 649 [2023-11-19 07:47:11,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:12,415 INFO L124 PetriNetUnfolderBase]: 1293/3270 cut-off events. [2023-11-19 07:47:12,416 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-11-19 07:47:12,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5350 conditions, 3270 events. 1293/3270 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 26174 event pairs, 989 based on Foata normal form. 186/3069 useless extension candidates. Maximal degree in co-relation 2272. Up to 2018 conditions per place. [2023-11-19 07:47:12,447 INFO L140 encePairwiseOnDemand]: 622/649 looper letters, 47 selfloop transitions, 0 changer transitions 0/101 dead transitions. [2023-11-19 07:47:12,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 101 transitions, 306 flow [2023-11-19 07:47:12,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:47:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:47:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 618 transitions. [2023-11-19 07:47:12,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4761171032357473 [2023-11-19 07:47:12,456 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 618 transitions. [2023-11-19 07:47:12,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 618 transitions. [2023-11-19 07:47:12,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:12,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 618 transitions. [2023-11-19 07:47:12,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 309.0) internal successors, (618), 2 states have internal predecessors, (618), 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 07:47:12,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 649.0) internal successors, (1947), 3 states have internal predecessors, (1947), 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 07:47:12,468 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 649.0) internal successors, (1947), 3 states have internal predecessors, (1947), 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 07:47:12,469 INFO L175 Difference]: Start difference. First operand has 119 places, 128 transitions, 266 flow. Second operand 2 states and 618 transitions. [2023-11-19 07:47:12,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 101 transitions, 306 flow [2023-11-19 07:47:12,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 101 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:12,475 INFO L231 Difference]: Finished difference. Result has 99 places, 101 transitions, 212 flow [2023-11-19 07:47:12,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=649, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=99, PETRI_TRANSITIONS=101} [2023-11-19 07:47:12,476 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -20 predicate places. [2023-11-19 07:47:12,477 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 101 transitions, 212 flow [2023-11-19 07:47:12,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 274.0) internal successors, (548), 2 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:12,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:12,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:12,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:12,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:47:12,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:12,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1722116419, now seen corresponding path program 1 times [2023-11-19 07:47:12,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:12,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401348519] [2023-11-19 07:47:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:12,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:12,597 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 07:47:12,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:12,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401348519] [2023-11-19 07:47:12,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401348519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:12,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:12,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:12,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075469465] [2023-11-19 07:47:12,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:12,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:12,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:12,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 649 [2023-11-19 07:47:12,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 101 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 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 07:47:12,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:12,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 649 [2023-11-19 07:47:12,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:13,642 INFO L124 PetriNetUnfolderBase]: 2014/4693 cut-off events. [2023-11-19 07:47:13,642 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-19 07:47:13,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7935 conditions, 4693 events. 2014/4693 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 38668 event pairs, 653 based on Foata normal form. 0/4212 useless extension candidates. Maximal degree in co-relation 7930. Up to 2325 conditions per place. [2023-11-19 07:47:13,683 INFO L140 encePairwiseOnDemand]: 641/649 looper letters, 98 selfloop transitions, 6 changer transitions 0/151 dead transitions. [2023-11-19 07:47:13,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 151 transitions, 525 flow [2023-11-19 07:47:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:13,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-11-19 07:47:13,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46122239342578325 [2023-11-19 07:47:13,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-11-19 07:47:13,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-11-19 07:47:13,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:13,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-11-19 07:47:13,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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 07:47:13,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 649.0) internal successors, (2596), 4 states have internal predecessors, (2596), 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 07:47:13,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 649.0) internal successors, (2596), 4 states have internal predecessors, (2596), 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 07:47:13,700 INFO L175 Difference]: Start difference. First operand has 99 places, 101 transitions, 212 flow. Second operand 3 states and 898 transitions. [2023-11-19 07:47:13,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 151 transitions, 525 flow [2023-11-19 07:47:13,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 151 transitions, 525 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:13,706 INFO L231 Difference]: Finished difference. Result has 103 places, 107 transitions, 264 flow [2023-11-19 07:47:13,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=649, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=103, PETRI_TRANSITIONS=107} [2023-11-19 07:47:13,707 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -16 predicate places. [2023-11-19 07:47:13,708 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 107 transitions, 264 flow [2023-11-19 07:47:13,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 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 07:47:13,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:13,709 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:47:13,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:13,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:47:13,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:13,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1639396259, now seen corresponding path program 1 times [2023-11-19 07:47:13,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:13,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423804560] [2023-11-19 07:47:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:13,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:13,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:13,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:13,747 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:47:13,748 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-19 07:47:13,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-19 07:47:13,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-19 07:47:13,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-19 07:47:13,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-19 07:47:13,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-19 07:47:13,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-19 07:47:13,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-19 07:47:13,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-19 07:47:13,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-19 07:47:13,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-19 07:47:13,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-19 07:47:13,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-19 07:47:13,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-19 07:47:13,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-19 07:47:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-19 07:47:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-19 07:47:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-19 07:47:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-19 07:47:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-19 07:47:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-19 07:47:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-19 07:47:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-19 07:47:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-19 07:47:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-19 07:47:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-19 07:47:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-19 07:47:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-19 07:47:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-19 07:47:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-19 07:47:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-19 07:47:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-19 07:47:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-19 07:47:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-19 07:47:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-19 07:47:13,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-19 07:47:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-19 07:47:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-19 07:47:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-19 07:47:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-19 07:47:13,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-19 07:47:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-19 07:47:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-19 07:47:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-19 07:47:13,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-19 07:47:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-19 07:47:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-19 07:47:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-19 07:47:13,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-19 07:47:13,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:47:13,778 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:47:13,779 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:47:13,779 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:47:13,869 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:47:13,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 445 places, 487 transitions, 992 flow [2023-11-19 07:47:14,039 INFO L124 PetriNetUnfolderBase]: 52/524 cut-off events. [2023-11-19 07:47:14,039 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:47:14,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 524 events. 52/524 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2285 event pairs, 0 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 469. Up to 8 conditions per place. [2023-11-19 07:47:14,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 445 places, 487 transitions, 992 flow [2023-11-19 07:47:14,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 445 places, 487 transitions, 992 flow [2023-11-19 07:47:14,071 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:14,072 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 445 places, 487 transitions, 992 flow [2023-11-19 07:47:14,072 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 445 places, 487 transitions, 992 flow [2023-11-19 07:47:14,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 445 places, 487 transitions, 992 flow [2023-11-19 07:47:14,263 INFO L124 PetriNetUnfolderBase]: 52/524 cut-off events. [2023-11-19 07:47:14,263 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:47:14,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 524 events. 52/524 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2285 event pairs, 0 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 469. Up to 8 conditions per place. [2023-11-19 07:47:14,320 INFO L119 LiptonReduction]: Number of co-enabled transitions 152304