./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/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_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/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_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/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 aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:02,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:02,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:47:02,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:02,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:02,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:02,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:02,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:02,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:02,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:02,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:02,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:02,438 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:02,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:02,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:02,442 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:02,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:02,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:02,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:02,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:02,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:02,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:02,449 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:47:02,450 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:02,450 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:02,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:02,451 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:02,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:02,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:02,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:02,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:02,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:02,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:02,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:02,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:02,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:02,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:02,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:02,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:02,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:02,458 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:02,458 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_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 [2023-11-19 07:47:02,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:02,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:02,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:02,898 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:02,899 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:02,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2023-11-19 07:47:06,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:06,407 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:06,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2023-11-19 07:47:06,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/data/9308b68a4/97c8c79632374f9a838d5fec45427872/FLAG2fc06c532 [2023-11-19 07:47:06,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/data/9308b68a4/97c8c79632374f9a838d5fec45427872 [2023-11-19 07:47:06,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:06,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:06,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:06,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:06,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:06,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:06" (1/1) ... [2023-11-19 07:47:06,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4a8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:06, skipping insertion in model container [2023-11-19 07:47:06,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:06" (1/1) ... [2023-11-19 07:47:06,767 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:06,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:07,010 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:07,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:07,077 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:07,078 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:07,086 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:07,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07 WrapperNode [2023-11-19 07:47:07,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:07,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:07,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:07,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:07,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,174 INFO L138 Inliner]: procedures = 29, calls = 89, calls flagged for inlining = 23, calls inlined = 33, statements flattened = 698 [2023-11-19 07:47:07,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:07,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:07,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:07,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:07,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:07,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:07,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:07,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:07,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:07,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:07,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:07,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a9d0b2c-8eda-4f0b-b3c5-c6bcc4011565/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:47:07,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:47:07,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:47:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:47:07,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:47:07,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:47:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 07:47:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 07:47:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-19 07:47:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-19 07:47:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-19 07:47:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-19 07:47:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:47:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:47:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:47:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:07,394 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:47:07,629 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:07,631 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:08,993 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:09,667 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:09,667 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 07:47:09,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:09 BoogieIcfgContainer [2023-11-19 07:47:09,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:09,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:09,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:09,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:09,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:06" (1/3) ... [2023-11-19 07:47:09,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54863d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:09, skipping insertion in model container [2023-11-19 07:47:09,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07" (2/3) ... [2023-11-19 07:47:09,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54863d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:09, skipping insertion in model container [2023-11-19 07:47:09,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:09" (3/3) ... [2023-11-19 07:47:09,694 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2023-11-19 07:47:09,707 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:47:09,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:09,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2023-11-19 07:47:09,723 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:47:09,958 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-19 07:47:10,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 595 places, 604 transitions, 1274 flow [2023-11-19 07:47:10,469 INFO L124 PetriNetUnfolderBase]: 26/528 cut-off events. [2023-11-19 07:47:10,470 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:47:10,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 528 events. 26/528 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 897 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 446. Up to 3 conditions per place. [2023-11-19 07:47:10,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 595 places, 604 transitions, 1274 flow [2023-11-19 07:47:10,520 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 501 places, 507 transitions, 1062 flow [2023-11-19 07:47:10,525 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:10,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 501 places, 507 transitions, 1062 flow [2023-11-19 07:47:10,549 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 501 places, 507 transitions, 1062 flow [2023-11-19 07:47:10,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 507 transitions, 1062 flow [2023-11-19 07:47:10,724 INFO L124 PetriNetUnfolderBase]: 25/507 cut-off events. [2023-11-19 07:47:10,725 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:47:10,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 507 events. 25/507 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 895 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 446. Up to 3 conditions per place. [2023-11-19 07:47:10,786 INFO L119 LiptonReduction]: Number of co-enabled transitions 32944 [2023-11-19 07:47:31,120 INFO L134 LiptonReduction]: Checked pairs total: 185669 [2023-11-19 07:47:31,121 INFO L136 LiptonReduction]: Total number of compositions: 555 [2023-11-19 07:47:31,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:31,169 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;@77fb56ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:31,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2023-11-19 07:47:31,172 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:31,172 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:47:31,173 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:31,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:31,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:47:31,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-19 07:47:31,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:31,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2793, now seen corresponding path program 1 times [2023-11-19 07:47:31,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:31,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897005949] [2023-11-19 07:47:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:31,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:31,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:31,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897005949] [2023-11-19 07:47:31,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897005949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:31,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:31,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:47:31,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030888715] [2023-11-19 07:47:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:31,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:47:31,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:31,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:47:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:31,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 1163 [2023-11-19 07:47:31,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 187 transitions, 422 flow. Second operand has 2 states, 2 states have (on average 501.5) internal successors, (1003), 2 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:31,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:31,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 1163 [2023-11-19 07:47:31,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:35,451 INFO L124 PetriNetUnfolderBase]: 10599/17442 cut-off events. [2023-11-19 07:47:35,451 INFO L125 PetriNetUnfolderBase]: For 2257/2257 co-relation queries the response was YES. [2023-11-19 07:47:35,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32648 conditions, 17442 events. 10599/17442 cut-off events. For 2257/2257 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 117636 event pairs, 6023 based on Foata normal form. 1/11939 useless extension candidates. Maximal degree in co-relation 31865. Up to 12926 conditions per place. [2023-11-19 07:47:35,649 INFO L140 encePairwiseOnDemand]: 1082/1163 looper letters, 43 selfloop transitions, 0 changer transitions 1/106 dead transitions. [2023-11-19 07:47:35,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 106 transitions, 348 flow [2023-11-19 07:47:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:47:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:47:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1127 transitions. [2023-11-19 07:47:35,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48452278589853826 [2023-11-19 07:47:35,671 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1127 transitions. [2023-11-19 07:47:35,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1127 transitions. [2023-11-19 07:47:35,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:35,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1127 transitions. [2023-11-19 07:47:35,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 563.5) internal successors, (1127), 2 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1163.0) internal successors, (3489), 3 states have internal predecessors, (3489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,700 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1163.0) internal successors, (3489), 3 states have internal predecessors, (3489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,702 INFO L175 Difference]: Start difference. First operand has 197 places, 187 transitions, 422 flow. Second operand 2 states and 1127 transitions. [2023-11-19 07:47:35,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 106 transitions, 348 flow [2023-11-19 07:47:35,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 106 transitions, 316 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-19 07:47:35,783 INFO L231 Difference]: Finished difference. Result has 105 places, 105 transitions, 225 flow [2023-11-19 07:47:35,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=225, PETRI_PLACES=105, PETRI_TRANSITIONS=105} [2023-11-19 07:47:35,789 INFO L281 CegarLoopForPetriNet]: 197 programPoint places, -92 predicate places. [2023-11-19 07:47:35,789 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 105 transitions, 225 flow [2023-11-19 07:47:35,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 501.5) internal successors, (1003), 2 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:35,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:35,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:35,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:35,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-19 07:47:35,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:35,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1617985049, now seen corresponding path program 1 times [2023-11-19 07:47:35,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:35,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014706593] [2023-11-19 07:47:35,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:35,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:36,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014706593] [2023-11-19 07:47:36,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014706593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:36,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:36,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:36,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839788388] [2023-11-19 07:47:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:36,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:36,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:36,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:36,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:37,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 1163 [2023-11-19 07:47:37,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 488.8333333333333) internal successors, (2933), 6 states have internal predecessors, (2933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:37,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:37,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 1163 [2023-11-19 07:47:37,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:44,508 INFO L124 PetriNetUnfolderBase]: 40799/53397 cut-off events. [2023-11-19 07:47:44,508 INFO L125 PetriNetUnfolderBase]: For 1908/1908 co-relation queries the response was YES. [2023-11-19 07:47:44,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104235 conditions, 53397 events. 40799/53397 cut-off events. For 1908/1908 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 292066 event pairs, 5913 based on Foata normal form. 0/36008 useless extension candidates. Maximal degree in co-relation 104232. Up to 14662 conditions per place. [2023-11-19 07:47:44,902 INFO L140 encePairwiseOnDemand]: 1158/1163 looper letters, 180 selfloop transitions, 4 changer transitions 0/240 dead transitions. [2023-11-19 07:47:44,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 240 transitions, 911 flow [2023-11-19 07:47:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:44,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:44,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3107 transitions. [2023-11-19 07:47:44,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4452565204929779 [2023-11-19 07:47:44,921 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3107 transitions. [2023-11-19 07:47:44,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3107 transitions. [2023-11-19 07:47:44,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:44,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3107 transitions. [2023-11-19 07:47:44,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 517.8333333333334) internal successors, (3107), 6 states have internal predecessors, (3107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:44,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:44,974 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:44,975 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 225 flow. Second operand 6 states and 3107 transitions. [2023-11-19 07:47:44,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 240 transitions, 911 flow [2023-11-19 07:47:44,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 240 transitions, 911 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:44,985 INFO L231 Difference]: Finished difference. Result has 108 places, 104 transitions, 231 flow [2023-11-19 07:47:44,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=108, PETRI_TRANSITIONS=104} [2023-11-19 07:47:44,987 INFO L281 CegarLoopForPetriNet]: 197 programPoint places, -89 predicate places. [2023-11-19 07:47:44,987 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 104 transitions, 231 flow [2023-11-19 07:47:44,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 488.8333333333333) internal successors, (2933), 6 states have internal predecessors, (2933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:44,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:44,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:44,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:44,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 153 more)] === [2023-11-19 07:47:44,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:44,992 INFO L85 PathProgramCache]: Analyzing trace with hash 294762039, now seen corresponding path program 1 times [2023-11-19 07:47:44,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:44,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534826560] [2023-11-19 07:47:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:44,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:45,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:45,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534826560] [2023-11-19 07:47:45,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534826560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:45,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:45,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:45,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042678641] [2023-11-19 07:47:45,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:45,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:45,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:45,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:45,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:46,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 1163 [2023-11-19 07:47:46,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 491.1666666666667) internal successors, (2947), 6 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:46,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:46,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 1163 [2023-11-19 07:47:46,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand