./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-2.wvr.c --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_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/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_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/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_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/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 8c7125507f231f46c946ebcd57e8b56859ee58b969eed99ccdbcf88141d9e219 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:45,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:45,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:02:45,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:45,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:45,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:45,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:45,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:45,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:45,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:45,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:45,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:45,217 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:45,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:45,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:45,220 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:45,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:45,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:45,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:45,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:45,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:45,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:45,223 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:02:45,223 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:02:45,224 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:45,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:45,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:45,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:45,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:45,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:45,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:45,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:45,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:45,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:45,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:45,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:45,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:45,229 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:45,229 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:45,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:45,230 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:45,230 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_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7125507f231f46c946ebcd57e8b56859ee58b969eed99ccdbcf88141d9e219 [2023-11-19 08:02:45,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:45,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:45,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:45,625 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:45,626 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:45,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-19 08:02:49,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:49,294 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:49,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-19 08:02:49,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/data/a9dfc5165/edcbfce0195e4f85ab02f8fa018c0d8c/FLAGb941a7ec3 [2023-11-19 08:02:49,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/data/a9dfc5165/edcbfce0195e4f85ab02f8fa018c0d8c [2023-11-19 08:02:49,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:49,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:49,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:49,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:49,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:49,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:49,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d25095d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:49, skipping insertion in model container [2023-11-19 08:02:49,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:49" (1/1) ... [2023-11-19 08:02:49,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:49,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:49,998 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:50,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:50,073 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:50,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50 WrapperNode [2023-11-19 08:02:50,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:50,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:50,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:50,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:50,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,132 INFO L138 Inliner]: procedures = 24, calls = 33, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 253 [2023-11-19 08:02:50,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:50,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:50,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:50,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:50,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:50,178 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:50,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:50,179 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:50,180 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (1/1) ... [2023-11-19 08:02:50,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:50,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 08:02:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 08:02:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 08:02:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 08:02:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:02:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:02:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:02:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:02:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:02:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:02:50,278 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 08:02:50,393 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:50,395 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:50,983 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:50,997 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:50,997 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 08:02:51,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:51 BoogieIcfgContainer [2023-11-19 08:02:51,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:51,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:51,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:51,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:51,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:49" (1/3) ... [2023-11-19 08:02:51,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea5a08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:51, skipping insertion in model container [2023-11-19 08:02:51,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:50" (2/3) ... [2023-11-19 08:02:51,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea5a08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:51, skipping insertion in model container [2023-11-19 08:02:51,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:51" (3/3) ... [2023-11-19 08:02:51,013 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2023-11-19 08:02:51,023 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:02:51,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:51,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-19 08:02:51,036 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:02:51,158 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 08:02:51,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 314 places, 324 transitions, 662 flow [2023-11-19 08:02:51,386 INFO L124 PetriNetUnfolderBase]: 17/322 cut-off events. [2023-11-19 08:02:51,386 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:02:51,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 322 events. 17/322 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 517 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2023-11-19 08:02:51,398 INFO L82 GeneralOperation]: Start removeDead. Operand has 314 places, 324 transitions, 662 flow [2023-11-19 08:02:51,416 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 301 transitions, 614 flow [2023-11-19 08:02:51,422 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:02:51,441 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 301 transitions, 614 flow [2023-11-19 08:02:51,447 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 301 transitions, 614 flow [2023-11-19 08:02:51,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 301 transitions, 614 flow [2023-11-19 08:02:51,578 INFO L124 PetriNetUnfolderBase]: 16/301 cut-off events. [2023-11-19 08:02:51,579 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:02:51,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 301 events. 16/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 454 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2023-11-19 08:02:51,598 INFO L119 LiptonReduction]: Number of co-enabled transitions 16250 [2023-11-19 08:03:00,455 INFO L134 LiptonReduction]: Checked pairs total: 61295 [2023-11-19 08:03:00,456 INFO L136 LiptonReduction]: Total number of compositions: 316 [2023-11-19 08:03:00,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:00,492 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;@107555bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:00,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2023-11-19 08:03:00,494 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:03:00,494 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:03:00,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:00,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:00,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:03:00,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:00,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:00,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1207, now seen corresponding path program 1 times [2023-11-19 08:03:00,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:00,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063507693] [2023-11-19 08:03:00,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:00,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:00,632 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 08:03:00,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:00,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063507693] [2023-11-19 08:03:00,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063507693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:00,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:00,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:03:00,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222312461] [2023-11-19 08:03:00,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:00,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:03:00,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:00,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:03:00,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:03:00,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 640 [2023-11-19 08:03:00,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 198 flow. Second operand has 2 states, 2 states have (on average 308.5) internal successors, (617), 2 states have internal predecessors, (617), 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 08:03:00,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:00,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 640 [2023-11-19 08:03:00,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:01,108 INFO L124 PetriNetUnfolderBase]: 527/1376 cut-off events. [2023-11-19 08:03:01,109 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-11-19 08:03:01,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2264 conditions, 1376 events. 527/1376 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 9393 event pairs, 402 based on Foata normal form. 120/1320 useless extension candidates. Maximal degree in co-relation 2031. Up to 849 conditions per place. [2023-11-19 08:03:01,124 INFO L140 encePairwiseOnDemand]: 617/640 looper letters, 36 selfloop transitions, 0 changer transitions 1/70 dead transitions. [2023-11-19 08:03:01,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 70 transitions, 226 flow [2023-11-19 08:03:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:03:01,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:03:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 676 transitions. [2023-11-19 08:03:01,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.528125 [2023-11-19 08:03:01,154 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 676 transitions. [2023-11-19 08:03:01,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 676 transitions. [2023-11-19 08:03:01,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:01,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 676 transitions. [2023-11-19 08:03:01,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 338.0) internal successors, (676), 2 states have internal predecessors, (676), 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 08:03:01,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 640.0) internal successors, (1920), 3 states have internal predecessors, (1920), 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 08:03:01,184 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 640.0) internal successors, (1920), 3 states have internal predecessors, (1920), 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 08:03:01,186 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 198 flow. Second operand 2 states and 676 transitions. [2023-11-19 08:03:01,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 70 transitions, 226 flow [2023-11-19 08:03:01,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 70 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 08:03:01,200 INFO L231 Difference]: Finished difference. Result has 68 places, 69 transitions, 141 flow [2023-11-19 08:03:01,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=141, PETRI_PLACES=68, PETRI_TRANSITIONS=69} [2023-11-19 08:03:01,207 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -24 predicate places. [2023-11-19 08:03:01,208 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 69 transitions, 141 flow [2023-11-19 08:03:01,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 308.5) internal successors, (617), 2 states have internal predecessors, (617), 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 08:03:01,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:01,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:03:01,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:01,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:01,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:01,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1863754543, now seen corresponding path program 1 times [2023-11-19 08:03:01,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:01,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144573846] [2023-11-19 08:03:01,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:01,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:01,427 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 08:03:01,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:01,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144573846] [2023-11-19 08:03:01,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144573846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:01,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:01,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:01,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395416131] [2023-11-19 08:03:01,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:01,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:01,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:01,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:01,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:01,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 640 [2023-11-19 08:03:01,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 69 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 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 08:03:01,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:01,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 640 [2023-11-19 08:03:01,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:01,719 INFO L124 PetriNetUnfolderBase]: 612/1436 cut-off events. [2023-11-19 08:03:01,720 INFO L125 PetriNetUnfolderBase]: For 16/58 co-relation queries the response was YES. [2023-11-19 08:03:01,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2436 conditions, 1436 events. 612/1436 cut-off events. For 16/58 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8692 event pairs, 477 based on Foata normal form. 0/1272 useless extension candidates. Maximal degree in co-relation 2433. Up to 984 conditions per place. [2023-11-19 08:03:01,733 INFO L140 encePairwiseOnDemand]: 637/640 looper letters, 37 selfloop transitions, 1 changer transitions 0/67 dead transitions. [2023-11-19 08:03:01,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 67 transitions, 213 flow [2023-11-19 08:03:01,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 934 transitions. [2023-11-19 08:03:01,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864583333333333 [2023-11-19 08:03:01,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 934 transitions. [2023-11-19 08:03:01,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 934 transitions. [2023-11-19 08:03:01,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:01,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 934 transitions. [2023-11-19 08:03:01,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 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 08:03:01,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:01,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:01,754 INFO L175 Difference]: Start difference. First operand has 68 places, 69 transitions, 141 flow. Second operand 3 states and 934 transitions. [2023-11-19 08:03:01,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 67 transitions, 213 flow [2023-11-19 08:03:01,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:03:01,758 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 139 flow [2023-11-19 08:03:01,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2023-11-19 08:03:01,760 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -25 predicate places. [2023-11-19 08:03:01,760 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 139 flow [2023-11-19 08:03:01,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 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 08:03:01,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:01,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:01,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:03:01,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:01,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash 67057592, now seen corresponding path program 1 times [2023-11-19 08:03:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:01,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121748337] [2023-11-19 08:03:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:01,843 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 08:03:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121748337] [2023-11-19 08:03:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121748337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:01,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044636684] [2023-11-19 08:03:01,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:01,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:01,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:01,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:01,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:01,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 640 [2023-11-19 08:03:01,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 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 08:03:01,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:01,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 640 [2023-11-19 08:03:01,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:02,124 INFO L124 PetriNetUnfolderBase]: 527/1319 cut-off events. [2023-11-19 08:03:02,125 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-19 08:03:02,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2181 conditions, 1319 events. 527/1319 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8664 event pairs, 402 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 2177. Up to 847 conditions per place. [2023-11-19 08:03:02,137 INFO L140 encePairwiseOnDemand]: 636/640 looper letters, 35 selfloop transitions, 1 changer transitions 0/64 dead transitions. [2023-11-19 08:03:02,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 205 flow [2023-11-19 08:03:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:02,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 915 transitions. [2023-11-19 08:03:02,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4765625 [2023-11-19 08:03:02,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 915 transitions. [2023-11-19 08:03:02,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 915 transitions. [2023-11-19 08:03:02,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:02,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 915 transitions. [2023-11-19 08:03:02,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 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 08:03:02,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:02,155 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:02,155 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 139 flow. Second operand 3 states and 915 transitions. [2023-11-19 08:03:02,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 205 flow [2023-11-19 08:03:02,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:02,158 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 134 flow [2023-11-19 08:03:02,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2023-11-19 08:03:02,159 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -27 predicate places. [2023-11-19 08:03:02,160 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 134 flow [2023-11-19 08:03:02,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 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 08:03:02,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:02,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:02,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:03:02,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:02,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:02,162 INFO L85 PathProgramCache]: Analyzing trace with hash 67192793, now seen corresponding path program 1 times [2023-11-19 08:03:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:02,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341984535] [2023-11-19 08:03:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:02,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:02,263 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 08:03:02,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:02,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341984535] [2023-11-19 08:03:02,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341984535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:02,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:02,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:02,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336584413] [2023-11-19 08:03:02,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:02,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:02,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:02,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:02,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:02,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 640 [2023-11-19 08:03:02,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 08:03:02,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:02,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 640 [2023-11-19 08:03:02,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:02,721 INFO L124 PetriNetUnfolderBase]: 969/2352 cut-off events. [2023-11-19 08:03:02,721 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-19 08:03:02,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3951 conditions, 2352 events. 969/2352 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 16040 event pairs, 402 based on Foata normal form. 0/2075 useless extension candidates. Maximal degree in co-relation 3947. Up to 793 conditions per place. [2023-11-19 08:03:02,745 INFO L140 encePairwiseOnDemand]: 637/640 looper letters, 64 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2023-11-19 08:03:02,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 94 transitions, 328 flow [2023-11-19 08:03:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2023-11-19 08:03:02,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5130208333333334 [2023-11-19 08:03:02,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 985 transitions. [2023-11-19 08:03:02,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 985 transitions. [2023-11-19 08:03:02,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:02,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 985 transitions. [2023-11-19 08:03:02,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 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 08:03:02,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:02,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:02,768 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 134 flow. Second operand 3 states and 985 transitions. [2023-11-19 08:03:02,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 94 transitions, 328 flow [2023-11-19 08:03:02,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 94 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:02,772 INFO L231 Difference]: Finished difference. Result has 67 places, 65 transitions, 145 flow [2023-11-19 08:03:02,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=67, PETRI_TRANSITIONS=65} [2023-11-19 08:03:02,774 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -25 predicate places. [2023-11-19 08:03:02,774 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 145 flow [2023-11-19 08:03:02,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 08:03:02,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:02,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:02,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:03:02,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:02,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:02,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1243524062, now seen corresponding path program 1 times [2023-11-19 08:03:02,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:02,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103074317] [2023-11-19 08:03:02,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:02,856 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 08:03:02,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:02,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103074317] [2023-11-19 08:03:02,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103074317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:02,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:02,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:02,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686255539] [2023-11-19 08:03:02,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:02,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:02,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:02,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:02,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:02,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 640 [2023-11-19 08:03:02,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 307.6666666666667) internal successors, (923), 3 states have internal predecessors, (923), 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 08:03:02,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:02,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 640 [2023-11-19 08:03:02,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:03,458 INFO L124 PetriNetUnfolderBase]: 1463/3328 cut-off events. [2023-11-19 08:03:03,459 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2023-11-19 08:03:03,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5919 conditions, 3328 events. 1463/3328 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 22309 event pairs, 472 based on Foata normal form. 0/2990 useless extension candidates. Maximal degree in co-relation 5914. Up to 1483 conditions per place. [2023-11-19 08:03:03,491 INFO L140 encePairwiseOnDemand]: 636/640 looper letters, 57 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2023-11-19 08:03:03,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 88 transitions, 319 flow [2023-11-19 08:03:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 974 transitions. [2023-11-19 08:03:03,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072916666666667 [2023-11-19 08:03:03,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 974 transitions. [2023-11-19 08:03:03,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 974 transitions. [2023-11-19 08:03:03,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:03,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 974 transitions. [2023-11-19 08:03:03,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 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 08:03:03,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:03,510 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:03,510 INFO L175 Difference]: Start difference. First operand has 67 places, 65 transitions, 145 flow. Second operand 3 states and 974 transitions. [2023-11-19 08:03:03,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 88 transitions, 319 flow [2023-11-19 08:03:03,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 88 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:03,515 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 162 flow [2023-11-19 08:03:03,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2023-11-19 08:03:03,519 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -23 predicate places. [2023-11-19 08:03:03,519 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 162 flow [2023-11-19 08:03:03,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.6666666666667) internal successors, (923), 3 states have internal predecessors, (923), 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 08:03:03,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:03,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:03,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:03:03,521 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:03,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1092165447, now seen corresponding path program 1 times [2023-11-19 08:03:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:03,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47366482] [2023-11-19 08:03:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:03,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:03,709 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 08:03:03,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:03,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47366482] [2023-11-19 08:03:03,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47366482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:03,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:03,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:03,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247146050] [2023-11-19 08:03:03,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:03,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:03,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:03,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:03,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:03,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 640 [2023-11-19 08:03:03,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 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 08:03:03,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:03,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 640 [2023-11-19 08:03:03,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:04,274 INFO L124 PetriNetUnfolderBase]: 1463/3349 cut-off events. [2023-11-19 08:03:04,275 INFO L125 PetriNetUnfolderBase]: For 297/297 co-relation queries the response was YES. [2023-11-19 08:03:04,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6161 conditions, 3349 events. 1463/3349 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 22676 event pairs, 1214 based on Foata normal form. 0/3045 useless extension candidates. Maximal degree in co-relation 6155. Up to 2374 conditions per place. [2023-11-19 08:03:04,341 INFO L140 encePairwiseOnDemand]: 637/640 looper letters, 38 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2023-11-19 08:03:04,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 244 flow [2023-11-19 08:03:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:04,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2023-11-19 08:03:04,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2023-11-19 08:03:04,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 944 transitions. [2023-11-19 08:03:04,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 944 transitions. [2023-11-19 08:03:04,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:04,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 944 transitions. [2023-11-19 08:03:04,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 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 08:03:04,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:04,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:04,362 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 162 flow. Second operand 3 states and 944 transitions. [2023-11-19 08:03:04,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 244 flow [2023-11-19 08:03:04,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 68 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:04,367 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 171 flow [2023-11-19 08:03:04,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2023-11-19 08:03:04,370 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -21 predicate places. [2023-11-19 08:03:04,373 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 171 flow [2023-11-19 08:03:04,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 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 08:03:04,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:04,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:04,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:03:04,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:04,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:04,376 INFO L85 PathProgramCache]: Analyzing trace with hash 202918420, now seen corresponding path program 1 times [2023-11-19 08:03:04,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:04,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430508468] [2023-11-19 08:03:04,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:04,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:03:04,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:04,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430508468] [2023-11-19 08:03:04,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430508468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:04,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:04,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567120641] [2023-11-19 08:03:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:04,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:04,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:05,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 640 [2023-11-19 08:03:05,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 295.8333333333333) internal successors, (1775), 6 states have internal predecessors, (1775), 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 08:03:05,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:05,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 640 [2023-11-19 08:03:05,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:06,631 INFO L124 PetriNetUnfolderBase]: 4887/8350 cut-off events. [2023-11-19 08:03:06,631 INFO L125 PetriNetUnfolderBase]: For 738/738 co-relation queries the response was YES. [2023-11-19 08:03:06,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16696 conditions, 8350 events. 4887/8350 cut-off events. For 738/738 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 55028 event pairs, 384 based on Foata normal form. 0/7567 useless extension candidates. Maximal degree in co-relation 16689. Up to 2690 conditions per place. [2023-11-19 08:03:06,713 INFO L140 encePairwiseOnDemand]: 635/640 looper letters, 160 selfloop transitions, 4 changer transitions 0/187 dead transitions. [2023-11-19 08:03:06,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 187 transitions, 801 flow [2023-11-19 08:03:06,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1913 transitions. [2023-11-19 08:03:06,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4981770833333333 [2023-11-19 08:03:06,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1913 transitions. [2023-11-19 08:03:06,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1913 transitions. [2023-11-19 08:03:06,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:06,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1913 transitions. [2023-11-19 08:03:06,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 318.8333333333333) internal successors, (1913), 6 states have internal predecessors, (1913), 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 08:03:06,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:06,749 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:06,750 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 171 flow. Second operand 6 states and 1913 transitions. [2023-11-19 08:03:06,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 187 transitions, 801 flow [2023-11-19 08:03:06,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 187 transitions, 797 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:06,758 INFO L231 Difference]: Finished difference. Result has 74 places, 67 transitions, 173 flow [2023-11-19 08:03:06,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=173, PETRI_PLACES=74, PETRI_TRANSITIONS=67} [2023-11-19 08:03:06,760 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-11-19 08:03:06,761 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 67 transitions, 173 flow [2023-11-19 08:03:06,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.8333333333333) internal successors, (1775), 6 states have internal predecessors, (1775), 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 08:03:06,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:06,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:06,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:03:06,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:06,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1313243460, now seen corresponding path program 1 times [2023-11-19 08:03:06,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:06,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810297935] [2023-11-19 08:03:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:06,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:06,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:03:06,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:06,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810297935] [2023-11-19 08:03:06,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810297935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:06,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:06,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490043094] [2023-11-19 08:03:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:06,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:06,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:06,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:06,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:06,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 640 [2023-11-19 08:03:06,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 67 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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 08:03:06,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:06,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 640 [2023-11-19 08:03:06,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:07,359 INFO L124 PetriNetUnfolderBase]: 1463/3207 cut-off events. [2023-11-19 08:03:07,360 INFO L125 PetriNetUnfolderBase]: For 685/685 co-relation queries the response was YES. [2023-11-19 08:03:07,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6350 conditions, 3207 events. 1463/3207 cut-off events. For 685/685 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 20776 event pairs, 479 based on Foata normal form. 0/2901 useless extension candidates. Maximal degree in co-relation 6343. Up to 2169 conditions per place. [2023-11-19 08:03:07,383 INFO L140 encePairwiseOnDemand]: 635/640 looper letters, 55 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-11-19 08:03:07,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 81 transitions, 319 flow [2023-11-19 08:03:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2023-11-19 08:03:07,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4947916666666667 [2023-11-19 08:03:07,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 950 transitions. [2023-11-19 08:03:07,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 950 transitions. [2023-11-19 08:03:07,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:07,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 950 transitions. [2023-11-19 08:03:07,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 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 08:03:07,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:07,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 640.0) internal successors, (2560), 4 states have internal predecessors, (2560), 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 08:03:07,399 INFO L175 Difference]: Start difference. First operand has 74 places, 67 transitions, 173 flow. Second operand 3 states and 950 transitions. [2023-11-19 08:03:07,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 81 transitions, 319 flow [2023-11-19 08:03:07,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 81 transitions, 310 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 08:03:07,403 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 174 flow [2023-11-19 08:03:07,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2023-11-19 08:03:07,404 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -22 predicate places. [2023-11-19 08:03:07,404 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 174 flow [2023-11-19 08:03:07,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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 08:03:07,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:07,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:07,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:03:07,406 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:07,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:07,407 INFO L85 PathProgramCache]: Analyzing trace with hash 704045969, now seen corresponding path program 1 times [2023-11-19 08:03:07,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:07,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426058088] [2023-11-19 08:03:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:07,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:07,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:03:07,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:07,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426058088] [2023-11-19 08:03:07,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426058088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:07,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:07,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:07,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696028289] [2023-11-19 08:03:07,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:07,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:07,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:07,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:08,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 640 [2023-11-19 08:03:08,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 296.6666666666667) internal successors, (1780), 6 states have internal predecessors, (1780), 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 08:03:08,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:08,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 640 [2023-11-19 08:03:08,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:09,034 INFO L124 PetriNetUnfolderBase]: 2079/4009 cut-off events. [2023-11-19 08:03:09,034 INFO L125 PetriNetUnfolderBase]: For 367/367 co-relation queries the response was YES. [2023-11-19 08:03:09,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8085 conditions, 4009 events. 2079/4009 cut-off events. For 367/367 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 24492 event pairs, 1180 based on Foata normal form. 96/3760 useless extension candidates. Maximal degree in co-relation 8078. Up to 2375 conditions per place. [2023-11-19 08:03:09,060 INFO L140 encePairwiseOnDemand]: 634/640 looper letters, 128 selfloop transitions, 6 changer transitions 0/153 dead transitions. [2023-11-19 08:03:09,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 153 transitions, 668 flow [2023-11-19 08:03:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:09,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1885 transitions. [2023-11-19 08:03:09,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4908854166666667 [2023-11-19 08:03:09,068 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1885 transitions. [2023-11-19 08:03:09,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1885 transitions. [2023-11-19 08:03:09,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:09,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1885 transitions. [2023-11-19 08:03:09,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 314.1666666666667) internal successors, (1885), 6 states have internal predecessors, (1885), 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 08:03:09,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:09,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:09,086 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 174 flow. Second operand 6 states and 1885 transitions. [2023-11-19 08:03:09,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 153 transitions, 668 flow [2023-11-19 08:03:09,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 153 transitions, 668 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:03:09,091 INFO L231 Difference]: Finished difference. Result has 74 places, 65 transitions, 184 flow [2023-11-19 08:03:09,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2023-11-19 08:03:09,093 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -18 predicate places. [2023-11-19 08:03:09,093 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 184 flow [2023-11-19 08:03:09,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.6666666666667) internal successors, (1780), 6 states have internal predecessors, (1780), 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 08:03:09,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:09,111 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 08:03:09,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:03:09,112 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:09,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:09,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1850027242, now seen corresponding path program 1 times [2023-11-19 08:03:09,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:09,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941992536] [2023-11-19 08:03:09,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:09,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:09,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:03:09,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:09,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941992536] [2023-11-19 08:03:09,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941992536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:09,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:09,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:09,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790812226] [2023-11-19 08:03:09,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:09,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:09,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:09,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:09,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 640 [2023-11-19 08:03:09,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 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 08:03:09,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:09,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 640 [2023-11-19 08:03:09,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:10,363 INFO L124 PetriNetUnfolderBase]: 1976/3575 cut-off events. [2023-11-19 08:03:10,363 INFO L125 PetriNetUnfolderBase]: For 563/563 co-relation queries the response was YES. [2023-11-19 08:03:10,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7753 conditions, 3575 events. 1976/3575 cut-off events. For 563/563 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 20366 event pairs, 1027 based on Foata normal form. 76/3332 useless extension candidates. Maximal degree in co-relation 7745. Up to 2090 conditions per place. [2023-11-19 08:03:10,398 INFO L140 encePairwiseOnDemand]: 627/640 looper letters, 91 selfloop transitions, 13 changer transitions 0/119 dead transitions. [2023-11-19 08:03:10,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 119 transitions, 552 flow [2023-11-19 08:03:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1818 transitions. [2023-11-19 08:03:10,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4734375 [2023-11-19 08:03:10,406 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1818 transitions. [2023-11-19 08:03:10,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1818 transitions. [2023-11-19 08:03:10,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:10,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1818 transitions. [2023-11-19 08:03:10,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 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 08:03:10,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:10,423 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:10,423 INFO L175 Difference]: Start difference. First operand has 74 places, 65 transitions, 184 flow. Second operand 6 states and 1818 transitions. [2023-11-19 08:03:10,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 119 transitions, 552 flow [2023-11-19 08:03:10,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 119 transitions, 524 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 08:03:10,428 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 194 flow [2023-11-19 08:03:10,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2023-11-19 08:03:10,430 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -20 predicate places. [2023-11-19 08:03:10,430 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 194 flow [2023-11-19 08:03:10,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 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 08:03:10,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:10,431 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 08:03:10,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:03:10,432 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-19 08:03:10,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:10,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1569094392, now seen corresponding path program 1 times [2023-11-19 08:03:10,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:10,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006313733] [2023-11-19 08:03:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:10,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:03:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:10,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006313733] [2023-11-19 08:03:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006313733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:03:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870364746] [2023-11-19 08:03:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:10,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:03:10,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:10,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:03:10,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:03:11,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 640 [2023-11-19 08:03:11,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 63 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 296.5) internal successors, (1779), 6 states have internal predecessors, (1779), 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 08:03:11,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:11,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 640 [2023-11-19 08:03:11,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:11,740 INFO L124 PetriNetUnfolderBase]: 1671/3344 cut-off events. [2023-11-19 08:03:11,741 INFO L125 PetriNetUnfolderBase]: For 489/489 co-relation queries the response was YES. [2023-11-19 08:03:11,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7427 conditions, 3344 events. 1671/3344 cut-off events. For 489/489 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 20536 event pairs, 1136 based on Foata normal form. 0/3035 useless extension candidates. Maximal degree in co-relation 7419. Up to 2277 conditions per place. [2023-11-19 08:03:11,759 INFO L140 encePairwiseOnDemand]: 635/640 looper letters, 0 selfloop transitions, 0 changer transitions 142/142 dead transitions. [2023-11-19 08:03:11,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 142 transitions, 720 flow [2023-11-19 08:03:11,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:11,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1873 transitions. [2023-11-19 08:03:11,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48776041666666664 [2023-11-19 08:03:11,770 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1873 transitions. [2023-11-19 08:03:11,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1873 transitions. [2023-11-19 08:03:11,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:11,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1873 transitions. [2023-11-19 08:03:11,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.1666666666667) internal successors, (1873), 6 states have internal predecessors, (1873), 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 08:03:11,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:11,791 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 640.0) internal successors, (4480), 7 states have internal predecessors, (4480), 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 08:03:11,791 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 194 flow. Second operand 6 states and 1873 transitions. [2023-11-19 08:03:11,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 142 transitions, 720 flow [2023-11-19 08:03:11,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 142 transitions, 638 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 08:03:11,799 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-11-19 08:03:11,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=640, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-11-19 08:03:11,800 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -21 predicate places. [2023-11-19 08:03:11,800 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-11-19 08:03:11,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.5) internal successors, (1779), 6 states have internal predecessors, (1779), 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 08:03:11,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (58 of 59 remaining) [2023-11-19 08:03:11,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2023-11-19 08:03:11,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2023-11-19 08:03:11,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2023-11-19 08:03:11,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2023-11-19 08:03:11,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2023-11-19 08:03:11,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2023-11-19 08:03:11,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2023-11-19 08:03:11,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2023-11-19 08:03:11,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2023-11-19 08:03:11,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2023-11-19 08:03:11,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2023-11-19 08:03:11,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2023-11-19 08:03:11,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2023-11-19 08:03:11,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2023-11-19 08:03:11,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2023-11-19 08:03:11,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2023-11-19 08:03:11,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2023-11-19 08:03:11,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2023-11-19 08:03:11,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2023-11-19 08:03:11,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2023-11-19 08:03:11,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2023-11-19 08:03:11,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2023-11-19 08:03:11,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2023-11-19 08:03:11,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2023-11-19 08:03:11,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2023-11-19 08:03:11,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2023-11-19 08:03:11,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2023-11-19 08:03:11,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2023-11-19 08:03:11,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2023-11-19 08:03:11,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2023-11-19 08:03:11,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2023-11-19 08:03:11,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2023-11-19 08:03:11,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2023-11-19 08:03:11,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 59 remaining) [2023-11-19 08:03:11,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2023-11-19 08:03:11,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2023-11-19 08:03:11,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2023-11-19 08:03:11,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2023-11-19 08:03:11,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2023-11-19 08:03:11,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2023-11-19 08:03:11,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2023-11-19 08:03:11,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2023-11-19 08:03:11,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2023-11-19 08:03:11,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2023-11-19 08:03:11,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2023-11-19 08:03:11,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2023-11-19 08:03:11,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2023-11-19 08:03:11,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2023-11-19 08:03:11,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2023-11-19 08:03:11,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2023-11-19 08:03:11,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2023-11-19 08:03:11,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2023-11-19 08:03:11,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2023-11-19 08:03:11,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2023-11-19 08:03:11,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2023-11-19 08:03:11,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2023-11-19 08:03:11,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2023-11-19 08:03:11,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2023-11-19 08:03:11,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:03:11,819 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:11,826 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:03:11,827 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:03:11,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:11 BasicIcfg [2023-11-19 08:03:11,834 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:03:11,835 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:03:11,835 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:03:11,835 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:03:11,836 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:51" (3/4) ... [2023-11-19 08:03:11,838 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:03:11,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 08:03:11,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-19 08:03:11,853 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-19 08:03:11,854 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 08:03:11,854 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:03:11,855 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:03:12,068 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:03:12,071 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:03:12,071 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:03:12,072 INFO L158 Benchmark]: Toolchain (without parser) took 22438.29ms. Allocated memory was 148.9MB in the beginning and 461.4MB in the end (delta: 312.5MB). Free memory was 103.4MB in the beginning and 184.3MB in the end (delta: -80.9MB). Peak memory consumption was 232.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:12,072 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:12,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.74ms. Allocated memory is still 148.9MB. Free memory was 102.9MB in the beginning and 90.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:03:12,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.23ms. Allocated memory is still 148.9MB. Free memory was 90.8MB in the beginning and 88.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:12,077 INFO L158 Benchmark]: Boogie Preprocessor took 44.65ms. Allocated memory is still 148.9MB. Free memory was 88.3MB in the beginning and 86.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:12,078 INFO L158 Benchmark]: RCFGBuilder took 825.48ms. Allocated memory is still 148.9MB. Free memory was 86.2MB in the beginning and 105.8MB in the end (delta: -19.7MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-11-19 08:03:12,082 INFO L158 Benchmark]: TraceAbstraction took 20828.28ms. Allocated memory was 148.9MB in the beginning and 461.4MB in the end (delta: 312.5MB). Free memory was 105.2MB in the beginning and 193.7MB in the end (delta: -88.5MB). Peak memory consumption was 314.4MB. Max. memory is 16.1GB. [2023-11-19 08:03:12,083 INFO L158 Benchmark]: Witness Printer took 235.90ms. Allocated memory is still 461.4MB. Free memory was 193.7MB in the beginning and 184.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:03:12,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.74ms. Allocated memory is still 148.9MB. Free memory was 102.9MB in the beginning and 90.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.23ms. Allocated memory is still 148.9MB. Free memory was 90.8MB in the beginning and 88.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.65ms. Allocated memory is still 148.9MB. Free memory was 88.3MB in the beginning and 86.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 825.48ms. Allocated memory is still 148.9MB. Free memory was 86.2MB in the beginning and 105.8MB in the end (delta: -19.7MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 20828.28ms. Allocated memory was 148.9MB in the beginning and 461.4MB in the end (delta: 312.5MB). Free memory was 105.2MB in the beginning and 193.7MB in the end (delta: -88.5MB). Peak memory consumption was 314.4MB. Max. memory is 16.1GB. * Witness Printer took 235.90ms. Allocated memory is still 461.4MB. Free memory was 193.7MB in the beginning and 184.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0s, 292 PlacesBefore, 92 PlacesAfterwards, 301 TransitionsBefore, 93 TransitionsAfterwards, 16250 CoEnabledTransitionPairs, 8 FixpointIterations, 127 TrivialSequentialCompositions, 137 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 25 ConcurrentYvCompositions, 8 ChoiceCompositions, 316 TotalNumberOfCompositions, 61295 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21734, independent: 20802, independent conditional: 0, independent unconditional: 20802, dependent: 932, dependent conditional: 0, dependent unconditional: 932, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9408, independent: 9248, independent conditional: 0, independent unconditional: 9248, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21734, independent: 11554, independent conditional: 0, independent unconditional: 11554, dependent: 772, dependent conditional: 0, dependent unconditional: 772, unknown: 9408, unknown conditional: 0, unknown unconditional: 9408] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 830, Positive conditional cache size: 0, Positive unconditional cache size: 830, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 457 locations, 59 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 20.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1151 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 735 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 366 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2381 IncrementalHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 366 mSolverCounterUnsat, 96 mSDtfsCounter, 2381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 08:03:12,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0150211-1ccb-47d5-8a4b-ffa6e487a4b2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE